Principe, méthode et limite de la datation au Carbone 14. [SenLycée2Sciences]

Fonction exponentielle

Définition de la fonction exponentielle.

La demi-vie ou période radioactive

période du carbone 14

Question sur le carbone 14

Rapport constant à la naissance

Question sur le graphique

Limite de la méthode de datation au carbone 14

La demi-vie ou période radioactive.

Question⚓

A partir de vos connaissances en sciences physiques, rappelez dans l'espace ci-dessous ce que vous entendez par "période radioactive" ou "demi-vie".

Pour consulter votre cours de Sciences Physiques sur la "période radioactive" ou "demi-vie", cliquer sur : période radioactive

</div><div class="studentInstruction "><p>Après avoir bien observé la<strong> courbe de décroissance radioactive</strong> ci dessous, proposez une définition de la <strong>demi-vie</strong> encore appelée <strong>période radioactive</strong>, dans l'espace réservé en dessous de la courbe.</p></div><div class="txt "><p><span class="ico_tim "><a href="../res/courbe_de_decroissance.png" class="zoom" target="_blank" onclick="scImgMgr.loading(); return false;" title="Cliquez pour agrandir (nouvelle fenêtre)"><img src="../res/courbe_de_decroissance_1.png" width="200" height="190" alt="" /></a></span></p><p><strong>Illustration graphique :</strong> Illustration de la variation du nombre de noyaux <strong>N(t)</strong> sur un tout petit intervalle de temps <strong>dt</strong>. A une variation du temps égale à <strong>dt</strong> correspond une variation du nombre de noyaux <strong>dN(t).</strong></p><p>Ces deux quantités sont reliées par la <strong>dérivée de la fonction</strong> : <strong>N'(t)=dN(t)/dt</strong>.</p></div><div class="studentArea "><textarea id="pIMNdvUVZ7dcQmaRJLzlSc" rows="4" /></div><div class="studentInstruction "><p>Après avoir :</p><ul><li><p>consulté votre cours de Sciences Physiques sur la "<strong>période radioactive</strong>" ou "<strong>demi-vie</strong>" ;</p></li><li><p>bien observé<strong> la courbe de décroissance radioactive</strong> ;</p></li><li><p>proposé, dans <strong>l'espace ci-dessus,</strong> une définition de la demi-vie encore appelée période radioactive,</p></li></ul><p>cliquez sur : "<strong>Solution" </strong></p></div></div></div></div></div><a class="tePauseNext" role="button" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="teMgr.getSubController(this, TEPauseCtrl).nextStep()">Suivant</a></div><div class="tePauseStep "><div class="exercice numerical"><h3 class="exercice_ti"><span>Valeur de la période ou demi-vie du carbone 14.</span></h3><div class="exercice_co"><script type="text/JavaScript"><![CDATA[
var ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol = {

fId : "ygIVWV0SPHbVRP0Q3ZYpKb",
	fCurSeq : null,
	initSeq : function(pCodeSeq){
	try {
		if(pCodeSeq==null) return;
		if(this.fCurSeq!=null) this.closeSeq();
		this.fCurSeq = pCodeSeq;
		switch(this.fCurSeq) {

case "play" : {
		var vForm = document.forms.ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_form;
		this._Sol = {field:{s:[{isMatch:function(pResp){try{if(typeof pResp == 'undefined') return false; return Number(pResp.replace(",",".")) == Number('5730') && true;}catch(e){return false;}}, score:1},null],min:0,max:1},_:null};
		this.getSolIdx = function(pFieldIndex){
			var vF = this._Sol[pFieldIndex];
			var vVal = vForm[pFieldIndex].value;
			for (var i = 0; i < vF.s.length-1; i++) if(vF.s[i].isMatch(vVal)) return i;
			return -1;
		};
		this.getFieldScore = function(pFieldIndex) {
			var vI = this.getSolIdx(pFieldIndex);
			if(vI >= 0) return this._Sol[pFieldIndex].s[vI].score;
			return 0;
		};
		this.refreshResultInput = function(pInput){
			if(this._resultDisplay == "none") pInput.parentNode.className="";
			else {
				var vSol = this._Sol[pInput.name];
				var vRes = Math.round((this.getFieldScore(pInput.name) - vSol.min) / (vSol.max - vSol.min) * 1);
				pInput.parentNode.className= "assmntResult_" + vRes;
			}
		};
var vLoadRespSession = "";

for (var i=0; i < vForm.length; i++) {
			var vFi = vForm.elements[i];
			if (vFi.name) {
				this.setInteraction(vFi, "enabled");
				vFi.value = vLoadRespSession == null ? "" : scServices.assmntMgr.getResponse(this.fId, vLoadRespSession, vFi.name) || "";
			}
		}
	this.refreshResult("");

this.setSolution('collapsed', 'collapsed');
scAssmntMgr.setMode(sc$("ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_N_score"), "invisible");
scAssmntMgr.setToggleStatus(sc$("ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_S_N57"), false);
var vRespSession = "";
		if(scServices.assmntMgr.getCompletionStatus(this.fId, vRespSession)=="notAttempt") scServices.assmntMgr.setCompletionStatus(this.fId, vRespSession, "attempt");
		this.setResp = function(pInput) {
			scServices.assmntMgr.setResponse(this.fId, vRespSession, pInput.name, pInput.value);
			this.computeScore();
			scServices.assmntMgr.commit();
			this.refreshResultInput(pInput);
		}

this.computeScore = function() {

this.fMinPts = 0;
			this.fMaxPts = 0;
			for(var vF in this._Sol) if(vF!="_") {this.fMinPts += this._Sol[vF].min; this.fMaxPts += this._Sol[vF].max;}
			this.fScorePts = this.getFieldScore("field")+0;

//alert("score:::::"+this.fMinPts+" - "+this.fScorePts+" - "+this.fMaxPts);
var vScoreSession = "";
			if(this.fScorePts != null) scServices.assmntMgr.setPts(this.fId, vScoreSession, this.fMinPts, this.fScorePts, this.fMaxPts);

this.refreshScoresFeedbacks();
		}

if(vRespSession != vLoadRespSession) {for (var i=0; i < vForm.length; i++) {var vFi = vForm.elements[i]; if (vFi.name) scServices.assmntMgr.setResponse(this.fId, vRespSession, vFi.name, vFi.value);}}
this.computeScore();

scServices.assmntMgr.commit();
		break;
	}

}
	}catch(e){alert("failed:::"+e)};
	},
	onActionN77 : function(pButton){
		if(scAssmntMgr.isDisabled(pButton)) return;
var vSess="";
scServices.assmntMgr.resetResponses(this.fId, vSess);
scServices.assmntMgr.setPts(this.fId, vSess, null, null, null); 
this.initSeq("play");

scServices.assmntMgr.commit();
	},
	onActionN57 : function(pButton){
		if(scAssmntMgr.isDisabled(pButton)) return;
		var vIsOn = scAssmntMgr.isToggleOn(pButton);
		if(vIsOn) {
scAssmntMgr.setMode(sc$("ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_N_score"), "invisible");
this.refreshResult("none");var vForm=document.forms.ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_form; for (var i=0; i < vForm.length; i++) {var vFi = vForm.elements[i]; if (vFi.name) this.setInteraction(vFi, "enabled");}
		} else {
scAssmntMgr.setMode(sc$("ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_N_score"), "visible");
this.refreshResult("addClass");var vForm=document.forms.ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_form; for (var i=0; i < vForm.length; i++) {var vFi = vForm.elements[i]; if (vFi.name) this.setInteraction(vFi, "disabled");}
		}
		scAssmntMgr.setToggleStatus(pButton, ! vIsOn);
		scServices.assmntMgr.commit();
	},

closeSeq: function(){
		var vForm = document.forms.ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_form;
		switch(this.fCurSeq) {

case "play" : {

break;
	}

}
		this.fCurSeq = null;
	},
	getOnLoadSeq:function() {

return "play";
	},

refreshScoresFeedbacks : function(){

var vScoreNode = sc$("ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_SN96");

},
	setSolution : function(pIfRight, pIfNotBest){
		for(var vF in this._Sol) if(vF != "_") scAssmntMgr.setMode(sc$("ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_X_"+vF), this.getSolIdx(vF)==0 ? pIfRight || "collapsed" : pIfNotBest || "collapsed");
	},
	setInteraction : function(pElt, pMode){
		if(!pElt) return;
		switch(pMode) {
		case "collapsed" :
			pElt.style.display = "none";
			if("scSiLib" in window) scSiLib.fireResizedNode(pElt);
			break;
		case "invisible" :
			pElt.style.display = "";
			pElt.style.visibility = "hidden";
			if("scSiLib" in window) scSiLib.fireResizedNode(pElt);
			break;
		case "enabled" : 
		case "disabled" : 
			pElt.disabled = (pMode=="disabled");
		default :
			pElt.style.display = "";
			pElt.style.visibility = "visible";
			if("scSiLib" in window) scSiLib.fireResizedNode(pElt);
		}
	},
	refreshResult : function(pMode){
		this._resultDisplay = pMode || "none";
		var vForm = document.forms.ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_form;
		for (var i=0; i < vForm.length; i++) { var vFi = vForm.elements[i]; if (vFi.name) this.refreshResultInput(vFi);}

},
	onLoad: function(){
		if (!String.prototype.trim) {String.prototype.trim = function () {return this.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');};}

this.initSeq(this.getOnLoadSeq()); 
		var vNodeRoot = sc$("ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_A");
		vNodeRoot.style.display = "block";

},
	onUnload: function(){
		this.closeSeq();
	},
	loadSortKey: "A",
	unloadSortKey: "A"
};

scOnLoads[scOnLoads.length] = ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol;
scOnUnloads[scOnUnloads.length] = ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol;
]]></script><div id="ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_A" style="display:none;"><div class="quizBody"><div class="question"><div><div><div class="studentInstruction "><p>Indiquez dans l'espace réservé ci-dessous la valeur de la période ou demie-vie du carbone 14, en nombre d'années. <strong>Ex : 70 000 </strong></p></div><div class="studentArea "><textarea id="Cqlx0vhVtobEPWLIaB8Upe" rows="1" /></div></div></div></div><div class="response" aria-live="polite"><form action="javascript:void(0);" name="ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_form" id="ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_form"><div class="exoAsw"><span><input type="text" name="field" size="20" onblur="ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol.setResp(this);" class="exoInput numInput " /></span></div></form></div><div class="toolbar"><a role="button" title="Afficher le score et la correction" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol.onActionN57(this); return false;" class="btnQuiz correction " id="ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_S_N57"><span>Correction</span></a><a role="button" title="Effacer les réponses" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol.onActionN77(this); return false;" class="btnQuiz reset "><span>Recommencer</span></a><span class="scoreBox"><span class="score " aria-live="polite" id="ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_N_score"><span id="ygIVWV0SPHbVRP0Q3ZYpKb_AwithoutSol_SN96"><span /></span></span></span></div></div></div></div></div><a class="tePauseResume" role="button" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="teMgr.getSubController(this, TEPauseCtrl).resume(this)">Continuer</a></div></div><div class="quizList tePause" id="nL2QM8f5AqjFVI4tXXljgd_quizList" data-te-position="382.507"><div class="tePauseStep "><div class="exercice "><h3 class="exercice_ti"><span>période du carbone 14</span></h3><div class="exercice_co " /></div><a class="tePauseNext" role="button" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="teMgr.getSubController(this, TEPauseCtrl).nextStep()">Commencer</a></div><div class="tePauseStep "><div class="exercice numerical"><h3 class="exercice_ti"><span>période du Carbone 14</span></h3><div class="exercice_co"><script type="text/JavaScript"><![CDATA[
var BanVp9iYaNhcVfDBqA8vhj_AwithoutSol = {

fId : "BanVp9iYaNhcVfDBqA8vhj",
	fCurSeq : null,
	initSeq : function(pCodeSeq){
	try {
		if(pCodeSeq==null) return;
		if(this.fCurSeq!=null) this.closeSeq();
		this.fCurSeq = pCodeSeq;
		switch(this.fCurSeq) {

case "play" : {
		var vForm = document.forms.BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_form;
		this._Sol = {field:{s:[{isMatch:function(pResp){try{if(typeof pResp == 'undefined') return false; return Number(pResp.replace(",",".")) == Number('5 730') && true;}catch(e){return false;}}, score:1},null],min:0,max:1},_:null};
		this.getSolIdx = function(pFieldIndex){
			var vF = this._Sol[pFieldIndex];
			var vVal = vForm[pFieldIndex].value;
			for (var i = 0; i < vF.s.length-1; i++) if(vF.s[i].isMatch(vVal)) return i;
			return -1;
		};
		this.getFieldScore = function(pFieldIndex) {
			var vI = this.getSolIdx(pFieldIndex);
			if(vI >= 0) return this._Sol[pFieldIndex].s[vI].score;
			return 0;
		};
		this.refreshResultInput = function(pInput){
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			else {
				var vSol = this._Sol[pInput.name];
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			}
		};
var vLoadRespSession = "";

for (var i=0; i < vForm.length; i++) {
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			}
		}
	this.refreshResult("");

this.setSolution('collapsed', 'collapsed');
scAssmntMgr.setMode(sc$("BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_N_score"), "invisible");
scAssmntMgr.setToggleStatus(sc$("BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_S_N57"), false);
var vRespSession = "";
		if(scServices.assmntMgr.getCompletionStatus(this.fId, vRespSession)=="notAttempt") scServices.assmntMgr.setCompletionStatus(this.fId, vRespSession, "attempt");
		this.setResp = function(pInput) {
			scServices.assmntMgr.setResponse(this.fId, vRespSession, pInput.name, pInput.value);
			this.computeScore();
			scServices.assmntMgr.commit();
			this.refreshResultInput(pInput);
		}

this.computeScore = function() {

this.fMinPts = 0;
			this.fMaxPts = 0;
			for(var vF in this._Sol) if(vF!="_") {this.fMinPts += this._Sol[vF].min; this.fMaxPts += this._Sol[vF].max;}
			this.fScorePts = this.getFieldScore("field")+0;

//alert("score:::::"+this.fMinPts+" - "+this.fScorePts+" - "+this.fMaxPts);
var vScoreSession = "";
			if(this.fScorePts != null) scServices.assmntMgr.setPts(this.fId, vScoreSession, this.fMinPts, this.fScorePts, this.fMaxPts);

this.refreshScoresFeedbacks();
		}

if(vRespSession != vLoadRespSession) {for (var i=0; i < vForm.length; i++) {var vFi = vForm.elements[i]; if (vFi.name) scServices.assmntMgr.setResponse(this.fId, vRespSession, vFi.name, vFi.value);}}
this.computeScore();

scServices.assmntMgr.commit();
		break;
	}

}
	}catch(e){alert("failed:::"+e)};
	},
	onActionN77 : function(pButton){
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var vSess="";
scServices.assmntMgr.resetResponses(this.fId, vSess);
scServices.assmntMgr.setPts(this.fId, vSess, null, null, null); 
this.initSeq("play");

scServices.assmntMgr.commit();
	},
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scAssmntMgr.setMode(sc$("BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_N_score"), "invisible");
this.refreshResult("none");var vForm=document.forms.BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_form; for (var i=0; i < vForm.length; i++) {var vFi = vForm.elements[i]; if (vFi.name) this.setInteraction(vFi, "enabled");}
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scAssmntMgr.setMode(sc$("BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_N_score"), "visible");
this.refreshResult("addClass");var vForm=document.forms.BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_form; for (var i=0; i < vForm.length; i++) {var vFi = vForm.elements[i]; if (vFi.name) this.setInteraction(vFi, "disabled");}
		}
		scAssmntMgr.setToggleStatus(pButton, ! vIsOn);
		scServices.assmntMgr.commit();
	},

closeSeq: function(){
		var vForm = document.forms.BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_form;
		switch(this.fCurSeq) {

case "play" : {

break;
	}

}
		this.fCurSeq = null;
	},
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return "play";
	},

refreshScoresFeedbacks : function(){

var vScoreNode = sc$("BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_SN96");

},
	setSolution : function(pIfRight, pIfNotBest){
		for(var vF in this._Sol) if(vF != "_") scAssmntMgr.setMode(sc$("BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_X_"+vF), this.getSolIdx(vF)==0 ? pIfRight || "collapsed" : pIfNotBest || "collapsed");
	},
	setInteraction : function(pElt, pMode){
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			pElt.style.display = "none";
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			pElt.style.visibility = "hidden";
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			break;
		case "enabled" : 
		case "disabled" : 
			pElt.disabled = (pMode=="disabled");
		default :
			pElt.style.display = "";
			pElt.style.visibility = "visible";
			if("scSiLib" in window) scSiLib.fireResizedNode(pElt);
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	},
	refreshResult : function(pMode){
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		var vForm = document.forms.BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_form;
		for (var i=0; i < vForm.length; i++) { var vFi = vForm.elements[i]; if (vFi.name) this.refreshResultInput(vFi);}

},
	onLoad: function(){
		if (!String.prototype.trim) {String.prototype.trim = function () {return this.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');};}

this.initSeq(this.getOnLoadSeq()); 
		var vNodeRoot = sc$("BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_A");
		vNodeRoot.style.display = "block";

},
	onUnload: function(){
		this.closeSeq();
	},
	loadSortKey: "A",
	unloadSortKey: "A"
};

scOnLoads[scOnLoads.length] = BanVp9iYaNhcVfDBqA8vhj_AwithoutSol;
scOnUnloads[scOnUnloads.length] = BanVp9iYaNhcVfDBqA8vhj_AwithoutSol;
]]></script><div id="BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_A" style="display:none;"><div class="quizBody"><div class="question"><div><h4><span>Consigne</span></h4><div><div class="txt "><p>A quelle valeur correspond la période ou demi-vie du carbone 14</p></div></div></div></div><div class="response" aria-live="polite"><form action="javascript:void(0);" name="BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_form" id="BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_form"><div class="exoAsw"><span><input type="text" name="field" size="20" onblur="BanVp9iYaNhcVfDBqA8vhj_AwithoutSol.setResp(this);" class="exoInput numInput " /></span></div></form></div><div class="toolbar"><a role="button" title="Afficher le score et la correction" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="BanVp9iYaNhcVfDBqA8vhj_AwithoutSol.onActionN57(this); return false;" class="btnQuiz correction " id="BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_S_N57"><span>Correction</span></a><a role="button" title="Effacer les réponses" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="BanVp9iYaNhcVfDBqA8vhj_AwithoutSol.onActionN77(this); return false;" class="btnQuiz reset "><span>Recommencer</span></a><span class="scoreBox"><span class="score " aria-live="polite" id="BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_N_score"><span id="BanVp9iYaNhcVfDBqA8vhj_AwithoutSol_SN96"><span /></span></span></span></div></div></div></div></div><a class="tePauseResume" role="button" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="teMgr.getSubController(this, TEPauseCtrl).resume(this)">Continuer</a></div></div><div class="quizList tePause" id="tfjKvXFlVXiKupkCR7s9ji_quizList" data-te-position="689.4"><div class="tePauseStep "><div class="exercice "><h3 class="exercice_ti"><span>Question sur le carbone 14</span></h3><div class="exercice_co " /></div><a class="tePauseNext" role="button" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="teMgr.getSubController(this, TEPauseCtrl).nextStep()">Commencer</a></div><div class="tePauseStep "><div class="exercice qcu"><h3 class="exercice_ti"><span>Lucy et le carbone 14</span></h3><div class="exercice_co"><script type="text/JavaScript"><![CDATA[
var zLXoozOE18dBiKYtQQy4Mi_AwithoutSol = {

fId : "zLXoozOE18dBiKYtQQy4Mi",
	fCurSeq : null,
	initSeq : function(pCodeSeq){
	try {
		if(pCodeSeq==null) return;
		if(this.fCurSeq!=null) this.closeSeq();
		this.fCurSeq = pCodeSeq;
		switch(this.fCurSeq) {

case "play" : {
		var vForm = document.forms.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_form;
		for (var i=0; i < vForm.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input.length; i++) {
			vForm.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input[i].disabled = false;
			vForm.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input[i].checked = false;
		}

var vLoadRespSession = "";
var vResp = scServices.assmntMgr.getResponse(this.fId, vLoadRespSession, "choice");
		if(vResp != null) sc$("zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_in"+vResp).checked = true;

this.setSolution(false);
scAssmntMgr.setMode(sc$("zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_N_score"), "invisible");
scAssmntMgr.setToggleStatus(sc$("zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_S_N50"), false);
var vRespSession = "";
		if(scServices.assmntMgr.getCompletionStatus(this.fId, vRespSession)=="notAttempt") scServices.assmntMgr.setCompletionStatus(this.fId, vRespSession, "attempt");
		this.setResp = function(pInput, pIdx) {
			scServices.assmntMgr.setResponse(this.fId, vRespSession, "choice", pIdx);

this.computeScore();
			scServices.assmntMgr.commit();
		}

this.computeScore = function() {

this.fMinPts = 0;
		this.fMaxPts = 1;
		this.fScorePts = document.forms.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_form.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input[3].checked ?  this.fMaxPts : this.fMinPts;

//alert("score:::::"+this.fMinPts+" - "+this.fScorePts+" - "+this.fMaxPts);
var vScoreSession = "";
		if(this.fScorePts != null) scServices.assmntMgr.setPts(this.fId, vScoreSession, this.fMinPts, this.fScorePts, this.fMaxPts);

this.refreshScoresFeedbacks();
		}

if(vRespSession != vLoadRespSession) {
for(var i = 0; i < vForm.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input.length; i++) if(vForm.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input[i].checked) break;
		scServices.assmntMgr.setResponse(this.fId, vRespSession, "choice", (i < vForm.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input.length) ? vForm.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input[i].value : null);
}
this.computeScore();

scServices.assmntMgr.commit();
		break;
	}

}
	}catch(e){alert("failed:::"+e)};
	},
	onActionN70 : function(pButton){
		if(scAssmntMgr.isDisabled(pButton)) return;
var vSess="";
scServices.assmntMgr.resetResponses(this.fId, vSess);
scServices.assmntMgr.setPts(this.fId, vSess, null, null, null); 
this.initSeq("play");

scServices.assmntMgr.commit();
	},
	onActionN50 : function(pButton){
		if(scAssmntMgr.isDisabled(pButton)) return;
		var vIsOn = scAssmntMgr.isToggleOn(pButton);
		if(vIsOn) {
scAssmntMgr.setMode(sc$("zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_N_score"), "invisible");
this.setSolution(false); var vForm=document.forms.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_form; for (var i=0; i < vForm.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input.length; i++) vForm.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input[i].disabled = false; 
		} else {
scAssmntMgr.setMode(sc$("zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_N_score"), "visible");
this.setSolution(true); var vForm=document.forms.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_form; for (var i=0; i < vForm.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input.length; i++) vForm.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input[i].disabled = true; 
		}
		scAssmntMgr.setToggleStatus(pButton, ! vIsOn);
		scServices.assmntMgr.commit();
	},

closeSeq: function(){
		var vForm = document.forms.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_form;
		switch(this.fCurSeq) {

case "play" : {

break;
	}

}
		this.fCurSeq = null;
	},
	getOnLoadSeq:function() {

return "play";
	},

refreshScoresFeedbacks : function(){

var vScoreNode = sc$("zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_SN8f");

},
	solIsShown : false,
	setSolution : function(pShown){
		var vTRs = null;
		var vForm = document.forms.zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_form;
		var vTable = scPaLib.findNode("chi:" ,vForm);
		if (vTable.nodeName.toLowerCase()=="table") vTRs = scPaLib.findNodes("chi:/chi:tr" ,vTable);
		else vTRs = scPaLib.findNodes("chi:" ,vTable);
	
		if(!pShown && this.solIsShown) {
			for(var i=0; i<vTRs.length; i++){
				var vTR = vTRs[i]; 
				var vOffs = vTR.className.indexOf("assmntSol");
				if(vOffs>=0) vTR.className = vTR.className.substring(0, vOffs) + vTR.className.substring(vOffs+14);

}
		} else if(pShown && ! this.solIsShown) {

for(var i=0; i<vTRs.length; i++){
				var vTR = vTRs[i]; 
				vTR.className = ( i+1 == 4 ? "assmntSolRight " : "assmntSolWrong ") + vTR.className;

}

}
		this.solIsShown = pShown;
	},
	onLoad: function(){
		this.initSeq(this.getOnLoadSeq()); 
		var vNodeRoot = sc$("zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_A");
		vNodeRoot.style.display = "block"; 
	},
	onUnload: function(){
		this.closeSeq();
	},
	loadSortKey: "A",
	unloadSortKey: "A"
};

scOnLoads[scOnLoads.length] = zLXoozOE18dBiKYtQQy4Mi_AwithoutSol;
scOnUnloads[scOnUnloads.length] = zLXoozOE18dBiKYtQQy4Mi_AwithoutSol;
]]></script><div id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_A" style="display:none;"><div class="quizBody"><div class="question"><div><h4><span>Lucy et le carbone 14</span></h4><div><div class="studentInstruction "><p>Quelle est la durée maximale , limite, que la méthode du carbone 14 ne peut pas dépasser ? cochez la réponse juste parmi celles qui vous sont proposées.</p></div></div></div></div><div class="response" aria-live="polite"><form action="" name="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_form" id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_form"><ul class="choiceList "><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input" id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_in0" value="0" onclick="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol.setResp(this, 0);" aria-labelledby="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl0" /></div><div class="choiceList_la " id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl0"><div class="choice"><div class="label"><p>9 000 ans</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input" id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_in1" value="1" onclick="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol.setResp(this, 1);" aria-labelledby="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl1" /></div><div class="choiceList_la " id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl1"><div class="choice"><div class="label"><p>4 milliards d'années.</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input" id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_in2" value="2" onclick="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol.setResp(this, 2);" aria-labelledby="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl2" /></div><div class="choiceList_la " id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl2"><div class="choice"><div class="label"><p>15 000 ans</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input" id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_in3" value="3" onclick="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol.setResp(this, 3);" aria-labelledby="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl3" /></div><div class="choiceList_la " id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl3"><div class="choice"><div class="label"><p>50 000 ans</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input" id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_in4" value="4" onclick="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol.setResp(this, 4);" aria-labelledby="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl4" /></div><div class="choiceList_la " id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl4"><div class="choice"><div class="label"><p>90 000 ans</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input" id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_in5" value="5" onclick="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol.setResp(this, 5);" aria-labelledby="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl5" /></div><div class="choiceList_la " id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl5"><div class="choice"><div class="label"><p>1,2 millions d'années</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input" id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_in6" value="6" onclick="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol.setResp(this, 6);" aria-labelledby="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl6" /></div><div class="choiceList_la " id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl6"><div class="choice"><div class="label"><p>50 millions d'années</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input" id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_in7" value="7" onclick="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol.setResp(this, 7);" aria-labelledby="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl7" /></div><div class="choiceList_la " id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl7"><div class="choice"><div class="label"><p>3 milliards d'années</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_input" id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_in8" value="8" onclick="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol.setResp(this, 8);" aria-labelledby="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl8" /></div><div class="choiceList_la " id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_lbl8"><div class="choice"><div class="label"><p>4,5 milliards d'années</p></div></div></div></li></ul></form></div><div class="toolbar"><a role="button" title="Afficher le score et la correction" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol.onActionN50(this); return false;" class="btnQuiz correction " id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_S_N50"><span>Correction</span></a><a role="button" title="Effacer les réponses" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol.onActionN70(this); return false;" class="btnQuiz reset "><span>Recommencer</span></a><span class="scoreBox"><span class="score " aria-live="polite" id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_N_score"><span id="zLXoozOE18dBiKYtQQy4Mi_AwithoutSol_SN8f"><span /></span></span></span></div></div></div></div></div><a class="tePauseResume" role="button" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="teMgr.getSubController(this, TEPauseCtrl).resume(this)">Continuer</a></div></div><div class="quizList tePause" id="bWDbwwRmk4gtVUhmnxYhd_quizList" data-te-position="724.686"><div class="tePauseStep "><div class="exercice "><h3 class="exercice_ti"><span>Rapport constant à la naissance</span></h3><div class="exercice_co " /></div><a class="tePauseNext" role="button" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="teMgr.getSubController(this, TEPauseCtrl).nextStep()">Commencer</a></div><div class="tePauseStep "><div class="exercice qcu"><h3 class="exercice_ti"><span>Taux de carbone 14 par raport au carbone total chez un être vivant à la naissance</span></h3><div class="exercice_co"><script type="text/JavaScript"><![CDATA[
var ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol = {

fId : "ITyGAaeEpGc1M1rBLCO6zf",
	fCurSeq : null,
	initSeq : function(pCodeSeq){
	try {
		if(pCodeSeq==null) return;
		if(this.fCurSeq!=null) this.closeSeq();
		this.fCurSeq = pCodeSeq;
		switch(this.fCurSeq) {

case "play" : {
		var vForm = document.forms.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_form;
		for (var i=0; i < vForm.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input.length; i++) {
			vForm.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input[i].disabled = false;
			vForm.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input[i].checked = false;
		}

var vLoadRespSession = "";
var vResp = scServices.assmntMgr.getResponse(this.fId, vLoadRespSession, "choice");
		if(vResp != null) sc$("ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_in"+vResp).checked = true;

this.setSolution(false);
scAssmntMgr.setMode(sc$("ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_N_score"), "invisible");
scAssmntMgr.setToggleStatus(sc$("ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_S_N50"), false);
var vRespSession = "";
		if(scServices.assmntMgr.getCompletionStatus(this.fId, vRespSession)=="notAttempt") scServices.assmntMgr.setCompletionStatus(this.fId, vRespSession, "attempt");
		this.setResp = function(pInput, pIdx) {
			scServices.assmntMgr.setResponse(this.fId, vRespSession, "choice", pIdx);

this.computeScore();
			scServices.assmntMgr.commit();
		}

this.computeScore = function() {

this.fMinPts = 0;
		this.fMaxPts = 1;
		this.fScorePts = document.forms.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_form.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input[0].checked ?  this.fMaxPts : this.fMinPts;

//alert("score:::::"+this.fMinPts+" - "+this.fScorePts+" - "+this.fMaxPts);
var vScoreSession = "";
		if(this.fScorePts != null) scServices.assmntMgr.setPts(this.fId, vScoreSession, this.fMinPts, this.fScorePts, this.fMaxPts);

this.refreshScoresFeedbacks();
		}

if(vRespSession != vLoadRespSession) {
for(var i = 0; i < vForm.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input.length; i++) if(vForm.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input[i].checked) break;
		scServices.assmntMgr.setResponse(this.fId, vRespSession, "choice", (i < vForm.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input.length) ? vForm.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input[i].value : null);
}
this.computeScore();

scServices.assmntMgr.commit();
		break;
	}

}
	}catch(e){alert("failed:::"+e)};
	},
	onActionN70 : function(pButton){
		if(scAssmntMgr.isDisabled(pButton)) return;
var vSess="";
scServices.assmntMgr.resetResponses(this.fId, vSess);
scServices.assmntMgr.setPts(this.fId, vSess, null, null, null); 
this.initSeq("play");

scServices.assmntMgr.commit();
	},
	onActionN50 : function(pButton){
		if(scAssmntMgr.isDisabled(pButton)) return;
		var vIsOn = scAssmntMgr.isToggleOn(pButton);
		if(vIsOn) {
scAssmntMgr.setMode(sc$("ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_N_score"), "invisible");
this.setSolution(false); var vForm=document.forms.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_form; for (var i=0; i < vForm.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input.length; i++) vForm.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input[i].disabled = false; 
		} else {
scAssmntMgr.setMode(sc$("ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_N_score"), "visible");
this.setSolution(true); var vForm=document.forms.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_form; for (var i=0; i < vForm.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input.length; i++) vForm.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input[i].disabled = true; 
		}
		scAssmntMgr.setToggleStatus(pButton, ! vIsOn);
		scServices.assmntMgr.commit();
	},

closeSeq: function(){
		var vForm = document.forms.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_form;
		switch(this.fCurSeq) {

case "play" : {

break;
	}

}
		this.fCurSeq = null;
	},
	getOnLoadSeq:function() {

return "play";
	},

refreshScoresFeedbacks : function(){

var vScoreNode = sc$("ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_SN8f");

},
	solIsShown : false,
	setSolution : function(pShown){
		var vTRs = null;
		var vForm = document.forms.ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_form;
		var vTable = scPaLib.findNode("chi:" ,vForm);
		if (vTable.nodeName.toLowerCase()=="table") vTRs = scPaLib.findNodes("chi:/chi:tr" ,vTable);
		else vTRs = scPaLib.findNodes("chi:" ,vTable);
	
		if(!pShown && this.solIsShown) {
			for(var i=0; i<vTRs.length; i++){
				var vTR = vTRs[i]; 
				var vOffs = vTR.className.indexOf("assmntSol");
				if(vOffs>=0) vTR.className = vTR.className.substring(0, vOffs) + vTR.className.substring(vOffs+14);

}
		} else if(pShown && ! this.solIsShown) {

for(var i=0; i<vTRs.length; i++){
				var vTR = vTRs[i]; 
				vTR.className = ( i+1 == 1 ? "assmntSolRight " : "assmntSolWrong ") + vTR.className;

}

}
		this.solIsShown = pShown;
	},
	onLoad: function(){
		this.initSeq(this.getOnLoadSeq()); 
		var vNodeRoot = sc$("ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_A");
		vNodeRoot.style.display = "block"; 
	},
	onUnload: function(){
		this.closeSeq();
	},
	loadSortKey: "A",
	unloadSortKey: "A"
};

scOnLoads[scOnLoads.length] = ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol;
scOnUnloads[scOnUnloads.length] = ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol;
]]></script><div id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_A" style="display:none;"><div class="quizBody"><div class="question"><div><h4><span>taux de carbone 14 à la naissance.</span></h4><div><div class="studentInstruction "><p>Cochez la réponse juste parmi celles qui vous sont proposées.</p></div></div></div></div><div class="response" aria-live="polite"><form action="" name="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_form" id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_form"><ul class="choiceList "><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input" id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_in0" value="0" onclick="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol.setResp(this, 0);" aria-labelledby="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_lbl0" /></div><div class="choiceList_la " id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_lbl0"><div class="choice"><div class="label"><p>A la naissance d'un individu, le taux de carbone 14 par rapport au carbone total est toujours constant.</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input" id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_in1" value="1" onclick="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol.setResp(this, 1);" aria-labelledby="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_lbl1" /></div><div class="choiceList_la " id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_lbl1"><div class="choice"><div class="label"><p>A la naissance d'un individu, le taux de carbone 14 par rapport au carbone total est toujours positif.</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input" id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_in2" value="2" onclick="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol.setResp(this, 2);" aria-labelledby="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_lbl2" /></div><div class="choiceList_la " id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_lbl2"><div class="choice"><div class="label"><p>A la naissance d'un individu, le taux de carbone 14 par rapport au carbone total est toujours négatif.</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input" id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_in3" value="3" onclick="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol.setResp(this, 3);" aria-labelledby="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_lbl3" /></div><div class="choiceList_la " id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_lbl3"><div class="choice"><div class="label"><p>A la naissance d'un individu, le taux de carbone 14 par rapport au carbone total est toujours supérieur à 1.</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input" id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_in4" value="4" onclick="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol.setResp(this, 4);" aria-labelledby="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_lbl4" /></div><div class="choiceList_la " id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_lbl4"><div class="choice"><div class="label"><p>A la naissance d'un individu, le taux de carbone 14 par rapport au carbone total est toujours égal à 1.</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_input" id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_in5" value="5" onclick="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol.setResp(this, 5);" aria-labelledby="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_lbl5" /></div><div class="choiceList_la " id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_lbl5"><div class="choice"><div class="label"><p>A la naissance d'un individu, le taux de carbone 14 par rapport au carbone total est toujours égal à 50 %.</p></div></div></div></li></ul></form></div><div class="toolbar"><a role="button" title="Afficher le score et la correction" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol.onActionN50(this); return false;" class="btnQuiz correction " id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_S_N50"><span>Correction</span></a><a role="button" title="Effacer les réponses" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol.onActionN70(this); return false;" class="btnQuiz reset "><span>Recommencer</span></a><span class="scoreBox"><span class="score " aria-live="polite" id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_N_score"><span id="ITyGAaeEpGc1M1rBLCO6zf_AwithoutSol_SN8f"><span /></span></span></span></div></div></div></div></div><a class="tePauseResume" role="button" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="teMgr.getSubController(this, TEPauseCtrl).resume(this)">Continuer</a></div></div><div class="quizList tePause" id="pxCz3BqrPJ2L3z16s7FXh_quizList" data-te-position="988.032"><div class="tePauseStep "><div class="exercice "><h3 class="exercice_ti"><span>Question sur le graphique</span></h3><div class="exercice_co " /></div><a class="tePauseNext" role="button" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="teMgr.getSubController(this, TEPauseCtrl).nextStep()">Commencer</a></div><div class="tePauseStep "><div class="exercice qcu"><h3 class="exercice_ti"><span>Question sur le graphique.</span></h3><div class="exercice_co"><script type="text/JavaScript"><![CDATA[
var HW7Vzq60P4dIj0fIhte9Be_AwithoutSol = {

fId : "HW7Vzq60P4dIj0fIhte9Be",
	fCurSeq : null,
	initSeq : function(pCodeSeq){
	try {
		if(pCodeSeq==null) return;
		if(this.fCurSeq!=null) this.closeSeq();
		this.fCurSeq = pCodeSeq;
		switch(this.fCurSeq) {

case "play" : {
		var vForm = document.forms.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_form;
		for (var i=0; i < vForm.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input.length; i++) {
			vForm.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input[i].disabled = false;
			vForm.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input[i].checked = false;
		}

var vLoadRespSession = "";
var vResp = scServices.assmntMgr.getResponse(this.fId, vLoadRespSession, "choice");
		if(vResp != null) sc$("HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_in"+vResp).checked = true;

this.setSolution(false);
scAssmntMgr.setMode(sc$("HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_N_score"), "invisible");
scAssmntMgr.setToggleStatus(sc$("HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_S_N50"), false);
var vRespSession = "";
		if(scServices.assmntMgr.getCompletionStatus(this.fId, vRespSession)=="notAttempt") scServices.assmntMgr.setCompletionStatus(this.fId, vRespSession, "attempt");
		this.setResp = function(pInput, pIdx) {
			scServices.assmntMgr.setResponse(this.fId, vRespSession, "choice", pIdx);

this.computeScore();
			scServices.assmntMgr.commit();
		}

this.computeScore = function() {

this.fMinPts = 0;
		this.fMaxPts = 1;
		this.fScorePts = document.forms.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_form.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input[1].checked ?  this.fMaxPts : this.fMinPts;

//alert("score:::::"+this.fMinPts+" - "+this.fScorePts+" - "+this.fMaxPts);
var vScoreSession = "";
		if(this.fScorePts != null) scServices.assmntMgr.setPts(this.fId, vScoreSession, this.fMinPts, this.fScorePts, this.fMaxPts);

this.refreshScoresFeedbacks();
		}

if(vRespSession != vLoadRespSession) {
for(var i = 0; i < vForm.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input.length; i++) if(vForm.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input[i].checked) break;
		scServices.assmntMgr.setResponse(this.fId, vRespSession, "choice", (i < vForm.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input.length) ? vForm.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input[i].value : null);
}
this.computeScore();

scServices.assmntMgr.commit();
		break;
	}

}
	}catch(e){alert("failed:::"+e)};
	},
	onActionN70 : function(pButton){
		if(scAssmntMgr.isDisabled(pButton)) return;
var vSess="";
scServices.assmntMgr.resetResponses(this.fId, vSess);
scServices.assmntMgr.setPts(this.fId, vSess, null, null, null); 
this.initSeq("play");

scServices.assmntMgr.commit();
	},
	onActionN50 : function(pButton){
		if(scAssmntMgr.isDisabled(pButton)) return;
		var vIsOn = scAssmntMgr.isToggleOn(pButton);
		if(vIsOn) {
scAssmntMgr.setMode(sc$("HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_N_score"), "invisible");
this.setSolution(false); var vForm=document.forms.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_form; for (var i=0; i < vForm.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input.length; i++) vForm.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input[i].disabled = false; 
		} else {
scAssmntMgr.setMode(sc$("HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_N_score"), "visible");
this.setSolution(true); var vForm=document.forms.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_form; for (var i=0; i < vForm.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input.length; i++) vForm.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input[i].disabled = true; 
		}
		scAssmntMgr.setToggleStatus(pButton, ! vIsOn);
		scServices.assmntMgr.commit();
	},

closeSeq: function(){
		var vForm = document.forms.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_form;
		switch(this.fCurSeq) {

case "play" : {

break;
	}

}
		this.fCurSeq = null;
	},
	getOnLoadSeq:function() {

return "play";
	},

refreshScoresFeedbacks : function(){

var vScoreNode = sc$("HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_SN8f");

},
	solIsShown : false,
	setSolution : function(pShown){
		var vTRs = null;
		var vForm = document.forms.HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_form;
		var vTable = scPaLib.findNode("chi:" ,vForm);
		if (vTable.nodeName.toLowerCase()=="table") vTRs = scPaLib.findNodes("chi:/chi:tr" ,vTable);
		else vTRs = scPaLib.findNodes("chi:" ,vTable);
	
		if(!pShown && this.solIsShown) {
			for(var i=0; i<vTRs.length; i++){
				var vTR = vTRs[i]; 
				var vOffs = vTR.className.indexOf("assmntSol");
				if(vOffs>=0) vTR.className = vTR.className.substring(0, vOffs) + vTR.className.substring(vOffs+14);

}
		} else if(pShown && ! this.solIsShown) {

for(var i=0; i<vTRs.length; i++){
				var vTR = vTRs[i]; 
				vTR.className = ( i+1 == 2 ? "assmntSolRight " : "assmntSolWrong ") + vTR.className;

}

}
		this.solIsShown = pShown;
	},
	onLoad: function(){
		this.initSeq(this.getOnLoadSeq()); 
		var vNodeRoot = sc$("HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_A");
		vNodeRoot.style.display = "block"; 
	},
	onUnload: function(){
		this.closeSeq();
	},
	loadSortKey: "A",
	unloadSortKey: "A"
};

scOnLoads[scOnLoads.length] = HW7Vzq60P4dIj0fIhte9Be_AwithoutSol;
scOnUnloads[scOnUnloads.length] = HW7Vzq60P4dIj0fIhte9Be_AwithoutSol;
]]></script><div id="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_A" style="display:none;"><div class="quizBody"><div class="question"><div><h4><span>Question sur le graphique.</span></h4><div><div class="txt "><p>Quelle est la valeur mesurée du rapport  (Carbone 14-Carbone total) à la mort de l'individu étudié ? Cochez la réponse juste.</p></div></div></div></div><div class="response" aria-live="polite"><form action="" name="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_form" id="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_form"><ul class="choiceList "><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input" id="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_in0" value="0" onclick="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol.setResp(this, 0);" aria-labelledby="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_lbl0" /></div><div class="choiceList_la " id="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_lbl0"><div class="choice"><div class="label"><p><strong>0,5 10</strong><sup><strong>-12</strong></sup></p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input" id="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_in1" value="1" onclick="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol.setResp(this, 1);" aria-labelledby="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_lbl1" /></div><div class="choiceList_la " id="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_lbl1"><div class="choice"><div class="label"><p><strong>1,5 10</strong><sup><strong>-12</strong></sup></p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input" id="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_in2" value="2" onclick="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol.setResp(this, 2);" aria-labelledby="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_lbl2" /></div><div class="choiceList_la " id="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_lbl2"><div class="choice"><div class="label"><p><strong>3,5 10</strong><sup><strong>-12</strong></sup></p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_input" id="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_in3" value="3" onclick="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol.setResp(this, 3);" aria-labelledby="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_lbl3" /></div><div class="choiceList_la " id="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_lbl3"><div class="choice"><div class="label"><p><strong>6,5 10</strong><sup><strong>-12</strong></sup></p></div></div></div></li></ul></form></div><div class="toolbar"><a role="button" title="Afficher le score et la correction" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol.onActionN50(this); return false;" class="btnQuiz correction " id="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_S_N50"><span>Correction</span></a><a role="button" title="Effacer les réponses" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol.onActionN70(this); return false;" class="btnQuiz reset "><span>Recommencer</span></a><span class="scoreBox"><span class="score " aria-live="polite" id="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_N_score"><span id="HW7Vzq60P4dIj0fIhte9Be_AwithoutSol_SN8f"><span /></span></span></span></div></div></div></div></div><a class="tePauseNext" role="button" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="teMgr.getSubController(this, TEPauseCtrl).nextStep()">Suivant</a></div><div class="tePauseStep "><div class="exercice qcu"><h3 class="exercice_ti"><span>Question sur le graphique</span></h3><div class="exercice_co"><script type="text/JavaScript"><![CDATA[
var khXRSbSccpf2nWJ0yL5p4i_AwithoutSol = {

fId : "khXRSbSccpf2nWJ0yL5p4i",
	fCurSeq : null,
	initSeq : function(pCodeSeq){
	try {
		if(pCodeSeq==null) return;
		if(this.fCurSeq!=null) this.closeSeq();
		this.fCurSeq = pCodeSeq;
		switch(this.fCurSeq) {

case "play" : {
		var vForm = document.forms.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_form;
		for (var i=0; i < vForm.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input.length; i++) {
			vForm.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input[i].disabled = false;
			vForm.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input[i].checked = false;
		}

var vLoadRespSession = "";
var vResp = scServices.assmntMgr.getResponse(this.fId, vLoadRespSession, "choice");
		if(vResp != null) sc$("khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_in"+vResp).checked = true;

this.setSolution(false);
scAssmntMgr.setMode(sc$("khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_N_score"), "invisible");
scAssmntMgr.setToggleStatus(sc$("khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_S_N50"), false);
var vRespSession = "";
		if(scServices.assmntMgr.getCompletionStatus(this.fId, vRespSession)=="notAttempt") scServices.assmntMgr.setCompletionStatus(this.fId, vRespSession, "attempt");
		this.setResp = function(pInput, pIdx) {
			scServices.assmntMgr.setResponse(this.fId, vRespSession, "choice", pIdx);

this.computeScore();
			scServices.assmntMgr.commit();
		}

this.computeScore = function() {

this.fMinPts = 0;
		this.fMaxPts = 1;
		this.fScorePts = document.forms.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_form.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input[1].checked ?  this.fMaxPts : this.fMinPts;

//alert("score:::::"+this.fMinPts+" - "+this.fScorePts+" - "+this.fMaxPts);
var vScoreSession = "";
		if(this.fScorePts != null) scServices.assmntMgr.setPts(this.fId, vScoreSession, this.fMinPts, this.fScorePts, this.fMaxPts);

this.refreshScoresFeedbacks();
		}

if(vRespSession != vLoadRespSession) {
for(var i = 0; i < vForm.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input.length; i++) if(vForm.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input[i].checked) break;
		scServices.assmntMgr.setResponse(this.fId, vRespSession, "choice", (i < vForm.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input.length) ? vForm.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input[i].value : null);
}
this.computeScore();

scServices.assmntMgr.commit();
		break;
	}

}
	}catch(e){alert("failed:::"+e)};
	},
	onActionN70 : function(pButton){
		if(scAssmntMgr.isDisabled(pButton)) return;
var vSess="";
scServices.assmntMgr.resetResponses(this.fId, vSess);
scServices.assmntMgr.setPts(this.fId, vSess, null, null, null); 
this.initSeq("play");

scServices.assmntMgr.commit();
	},
	onActionN50 : function(pButton){
		if(scAssmntMgr.isDisabled(pButton)) return;
		var vIsOn = scAssmntMgr.isToggleOn(pButton);
		if(vIsOn) {
scAssmntMgr.setMode(sc$("khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_N_score"), "invisible");
this.setSolution(false); var vForm=document.forms.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_form; for (var i=0; i < vForm.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input.length; i++) vForm.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input[i].disabled = false; 
		} else {
scAssmntMgr.setMode(sc$("khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_N_score"), "visible");
this.setSolution(true); var vForm=document.forms.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_form; for (var i=0; i < vForm.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input.length; i++) vForm.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input[i].disabled = true; 
		}
		scAssmntMgr.setToggleStatus(pButton, ! vIsOn);
		scServices.assmntMgr.commit();
	},

closeSeq: function(){
		var vForm = document.forms.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_form;
		switch(this.fCurSeq) {

case "play" : {

break;
	}

}
		this.fCurSeq = null;
	},
	getOnLoadSeq:function() {

return "play";
	},

refreshScoresFeedbacks : function(){

var vScoreNode = sc$("khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_SN8f");

},
	solIsShown : false,
	setSolution : function(pShown){
		var vTRs = null;
		var vForm = document.forms.khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_form;
		var vTable = scPaLib.findNode("chi:" ,vForm);
		if (vTable.nodeName.toLowerCase()=="table") vTRs = scPaLib.findNodes("chi:/chi:tr" ,vTable);
		else vTRs = scPaLib.findNodes("chi:" ,vTable);
	
		if(!pShown && this.solIsShown) {
			for(var i=0; i<vTRs.length; i++){
				var vTR = vTRs[i]; 
				var vOffs = vTR.className.indexOf("assmntSol");
				if(vOffs>=0) vTR.className = vTR.className.substring(0, vOffs) + vTR.className.substring(vOffs+14);

}
		} else if(pShown && ! this.solIsShown) {

for(var i=0; i<vTRs.length; i++){
				var vTR = vTRs[i]; 
				vTR.className = ( i+1 == 2 ? "assmntSolRight " : "assmntSolWrong ") + vTR.className;

}

}
		this.solIsShown = pShown;
	},
	onLoad: function(){
		this.initSeq(this.getOnLoadSeq()); 
		var vNodeRoot = sc$("khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_A");
		vNodeRoot.style.display = "block"; 
	},
	onUnload: function(){
		this.closeSeq();
	},
	loadSortKey: "A",
	unloadSortKey: "A"
};

scOnLoads[scOnLoads.length] = khXRSbSccpf2nWJ0yL5p4i_AwithoutSol;
scOnUnloads[scOnUnloads.length] = khXRSbSccpf2nWJ0yL5p4i_AwithoutSol;
]]></script><div id="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_A" style="display:none;"><div class="quizBody"><div class="question"><div><h4><span>Question sur le graphique</span></h4><div><div class="txt "><p>Quel est  le nombre d'années écoulées depuis la mort de l'individu étudié ? Cochez la réponse juste.</p></div></div></div></div><div class="response" aria-live="polite"><form action="" name="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_form" id="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_form"><ul class="choiceList "><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input" id="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_in0" value="0" onclick="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol.setResp(this, 0);" aria-labelledby="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_lbl0" /></div><div class="choiceList_la " id="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_lbl0"><div class="choice"><div class="label"><p><strong>12 595 années</strong></p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input" id="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_in1" value="1" onclick="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol.setResp(this, 1);" aria-labelledby="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_lbl1" /></div><div class="choiceList_la " id="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_lbl1"><div class="choice"><div class="label"><p><strong>8 595 années</strong></p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input" id="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_in2" value="2" onclick="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol.setResp(this, 2);" aria-labelledby="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_lbl2" /></div><div class="choiceList_la " id="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_lbl2"><div class="choice"><div class="label"><p><strong>5 595 années</strong></p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_input" id="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_in3" value="3" onclick="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol.setResp(this, 3);" aria-labelledby="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_lbl3" /></div><div class="choiceList_la " id="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_lbl3"><div class="choice"><div class="label"><p><strong>2 595 années</strong></p></div></div></div></li></ul></form></div><div class="toolbar"><a role="button" title="Afficher le score et la correction" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol.onActionN50(this); return false;" class="btnQuiz correction " id="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_S_N50"><span>Correction</span></a><a role="button" title="Effacer les réponses" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol.onActionN70(this); return false;" class="btnQuiz reset "><span>Recommencer</span></a><span class="scoreBox"><span class="score " aria-live="polite" id="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_N_score"><span id="khXRSbSccpf2nWJ0yL5p4i_AwithoutSol_SN8f"><span /></span></span></span></div></div></div></div></div><a class="tePauseResume" role="button" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="teMgr.getSubController(this, TEPauseCtrl).resume(this)">Continuer</a></div></div><div class="quizList tePause" id="vurIVg5pKZcVZ8IvHVs7Ec_quizList" data-te-position="1049.181041"><div class="tePauseStep "><div class="exercice "><h3 class="exercice_ti"><span>Limite de la méthode de datation au carbone 14</span></h3><div class="exercice_co " /></div><a class="tePauseNext" role="button" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="teMgr.getSubController(this, TEPauseCtrl).nextStep()">Commencer</a></div><div class="tePauseStep "><div class="exercice qcu"><h3 class="exercice_ti"><span>Limite de la méthode de datation au carbone 14</span></h3><div class="exercice_co"><script type="text/JavaScript"><![CDATA[
var D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol = {

fId : "D4GoYn4mUZgdyqVQBRfrJf",
	fCurSeq : null,
	initSeq : function(pCodeSeq){
	try {
		if(pCodeSeq==null) return;
		if(this.fCurSeq!=null) this.closeSeq();
		this.fCurSeq = pCodeSeq;
		switch(this.fCurSeq) {

case "play" : {
		var vForm = document.forms.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_form;
		for (var i=0; i < vForm.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input.length; i++) {
			vForm.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input[i].disabled = false;
			vForm.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input[i].checked = false;
		}

var vLoadRespSession = "";
var vResp = scServices.assmntMgr.getResponse(this.fId, vLoadRespSession, "choice");
		if(vResp != null) sc$("D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_in"+vResp).checked = true;

this.setSolution(false);
scAssmntMgr.setMode(sc$("D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_N_score"), "invisible");
scAssmntMgr.setToggleStatus(sc$("D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_S_N50"), false);
var vRespSession = "";
		if(scServices.assmntMgr.getCompletionStatus(this.fId, vRespSession)=="notAttempt") scServices.assmntMgr.setCompletionStatus(this.fId, vRespSession, "attempt");
		this.setResp = function(pInput, pIdx) {
			scServices.assmntMgr.setResponse(this.fId, vRespSession, "choice", pIdx);

this.computeScore();
			scServices.assmntMgr.commit();
		}

this.computeScore = function() {

this.fMinPts = 0;
		this.fMaxPts = 1;
		this.fScorePts = document.forms.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_form.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input[1].checked ?  this.fMaxPts : this.fMinPts;

//alert("score:::::"+this.fMinPts+" - "+this.fScorePts+" - "+this.fMaxPts);
var vScoreSession = "";
		if(this.fScorePts != null) scServices.assmntMgr.setPts(this.fId, vScoreSession, this.fMinPts, this.fScorePts, this.fMaxPts);

this.refreshScoresFeedbacks();
		}

if(vRespSession != vLoadRespSession) {
for(var i = 0; i < vForm.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input.length; i++) if(vForm.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input[i].checked) break;
		scServices.assmntMgr.setResponse(this.fId, vRespSession, "choice", (i < vForm.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input.length) ? vForm.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input[i].value : null);
}
this.computeScore();

scServices.assmntMgr.commit();
		break;
	}

}
	}catch(e){alert("failed:::"+e)};
	},
	onActionN70 : function(pButton){
		if(scAssmntMgr.isDisabled(pButton)) return;
var vSess="";
scServices.assmntMgr.resetResponses(this.fId, vSess);
scServices.assmntMgr.setPts(this.fId, vSess, null, null, null); 
this.initSeq("play");

scServices.assmntMgr.commit();
	},
	onActionN50 : function(pButton){
		if(scAssmntMgr.isDisabled(pButton)) return;
		var vIsOn = scAssmntMgr.isToggleOn(pButton);
		if(vIsOn) {
scAssmntMgr.setMode(sc$("D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_N_score"), "invisible");
this.setSolution(false); var vForm=document.forms.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_form; for (var i=0; i < vForm.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input.length; i++) vForm.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input[i].disabled = false; 
		} else {
scAssmntMgr.setMode(sc$("D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_N_score"), "visible");
this.setSolution(true); var vForm=document.forms.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_form; for (var i=0; i < vForm.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input.length; i++) vForm.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input[i].disabled = true; 
		}
		scAssmntMgr.setToggleStatus(pButton, ! vIsOn);
		scServices.assmntMgr.commit();
	},

closeSeq: function(){
		var vForm = document.forms.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_form;
		switch(this.fCurSeq) {

case "play" : {

break;
	}

}
		this.fCurSeq = null;
	},
	getOnLoadSeq:function() {

return "play";
	},

refreshScoresFeedbacks : function(){

var vScoreNode = sc$("D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_SN8f");

},
	solIsShown : false,
	setSolution : function(pShown){
		var vTRs = null;
		var vForm = document.forms.D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_form;
		var vTable = scPaLib.findNode("chi:" ,vForm);
		if (vTable.nodeName.toLowerCase()=="table") vTRs = scPaLib.findNodes("chi:/chi:tr" ,vTable);
		else vTRs = scPaLib.findNodes("chi:" ,vTable);
	
		if(!pShown && this.solIsShown) {
			for(var i=0; i<vTRs.length; i++){
				var vTR = vTRs[i]; 
				var vOffs = vTR.className.indexOf("assmntSol");
				if(vOffs>=0) vTR.className = vTR.className.substring(0, vOffs) + vTR.className.substring(vOffs+14);

}
		} else if(pShown && ! this.solIsShown) {

for(var i=0; i<vTRs.length; i++){
				var vTR = vTRs[i]; 
				vTR.className = ( i+1 == 2 ? "assmntSolRight " : "assmntSolWrong ") + vTR.className;

}

}
		this.solIsShown = pShown;
	},
	onLoad: function(){
		this.initSeq(this.getOnLoadSeq()); 
		var vNodeRoot = sc$("D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_A");
		vNodeRoot.style.display = "block"; 
	},
	onUnload: function(){
		this.closeSeq();
	},
	loadSortKey: "A",
	unloadSortKey: "A"
};

scOnLoads[scOnLoads.length] = D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol;
scOnUnloads[scOnUnloads.length] = D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol;
]]></script><div id="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_A" style="display:none;"><div class="quizBody"><div class="question"><div><h4><span>Limite de la méthode de datation au carbone 14</span></h4><div><div class="txt "><p>L'âge de Lucy (3,2 millions d'années) peut-il être déterminé par la méthode du carbone 14 ? Cochez la réponse juste.</p></div></div></div></div><div class="response" aria-live="polite"><form action="" name="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_form" id="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_form"><ul class="choiceList "><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input" id="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_in0" value="0" onclick="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol.setResp(this, 0);" aria-labelledby="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_lbl0" /></div><div class="choiceList_la " id="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_lbl0"><div class="choice"><div class="label"><p>Oui</p></div></div></div></li><li class="choiceList_ch "><div class="choiceList_in "><input type="radio" name="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_input" id="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_in1" value="1" onclick="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol.setResp(this, 1);" aria-labelledby="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_lbl1" /></div><div class="choiceList_la " id="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_lbl1"><div class="choice"><div class="label"><p>non</p></div></div></div></li></ul></form></div><div class="toolbar"><a role="button" title="Afficher le score et la correction" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol.onActionN50(this); return false;" class="btnQuiz correction " id="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_S_N50"><span>Correction</span></a><a role="button" title="Effacer les réponses" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol.onActionN70(this); return false;" class="btnQuiz reset "><span>Recommencer</span></a><span class="scoreBox"><span class="score " aria-live="polite" id="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_N_score"><span id="D4GoYn4mUZgdyqVQBRfrJf_AwithoutSol_SN8f"><span /></span></span></span></div></div></div></div></div><a class="tePauseResume" role="button" href="#" onkeydown="scDynUiMgr.handleBtnKeyDwn(event);" onkeyup="scDynUiMgr.handleBtnKeyUp(event);" onclick="teMgr.getSubController(this, TEPauseCtrl).resume(this)">Continuer</a></div></div><div class="segmentTxt " data-te-start="1049.681041" data-te-end="1062.22"><p>Pour aller plus loin dan la maîtrise de la méthode de datation au carbone 14 cliquez sur : "<a class="link" target="_blank" href="https://youtu.be/4weQnbSdIu8" rel="noopener" title="Principe, méthode et limite de la datation au carbone 14 ; (nouvelle fenêtre)"><span><strong>autre vidéo</strong></span></a>"</p></div></div></div><nav class="teController" data-te-container="teContainer"><button class="tePreviousTime" /><button class="tePlayPause" title="Lecture" data-pressed-title="Pause"><span>Lecture / Pause</span></button><button class="teNextTime" /><div class="controllerNavArea"><input type="range" class="teSeek plainRange" step="any" role="slider" min="0" aria-valuemin="0" value="0" aria-valuenow="0" title="Barre de navigation" /><div class="timelines"><ul class="teTimeline" data-te-next-title="Segment suivant" data-te-previous-title="Segment précédent"><li class="tlSegment" data-te-start="0" data-te-end="108.355" style="width:10.201%"><a title="" data-te-position="0"></a><a class="tlQuizList tlPause" title="" data-te-point-target="e4BNXDahT4d1DfjxqBQ7ne_quizList"></a></li><li class="tlSegment" data-te-start="108.355" data-te-end="173.895" style="width:6.171%"><a title="Fonction exponentielle" data-te-position="108.355"></a><a class="tlQuizList tlPause" title="Définition de la fonction exponentielle." data-te-point-target="VPej4mMCGyfkDECsWFuUui_quizList"></a></li><li class="tlSegment" data-te-start="173.895" data-te-end="267.82" style="width:8.843%"><a title="" data-te-position="173.895"></a><a class="tlQuizList tlPause" title="La demi-vie ou période radioactive" data-te-point-target="xNOEipReGxb67TAy0Stssj_quizList"></a></li><li class="tlSegment" data-te-start="267.82" data-te-end="383.007" style="width:10.844%"><a title="" data-te-position="267.82"></a><a class="tlQuizList tlPause" title="période du carbone 14" data-te-point-target="nL2QM8f5AqjFVI4tXXljgd_quizList"></a></li><li class="tlSegment" data-te-start="383.007" data-te-end="689.9" style="width:28.892%"><a title="Question sur le carbone 14" data-te-position="383.007"></a><a class="tlQuizList tlPause" title="Question sur le carbone 14" data-te-point-target="tfjKvXFlVXiKupkCR7s9ji_quizList"></a></li><li class="tlSegment" data-te-start="689.9" data-te-end="725.186" style="width:3.322%"><a title="" data-te-position="689.9"></a><a class="tlQuizList tlPause" title="Rapport constant à la naissance" data-te-point-target="bWDbwwRmk4gtVUhmnxYhd_quizList"></a></li><li class="tlSegment" data-te-start="725.186" data-te-end="988.532" style="width:24.793%"><a title="" 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Principes et méthodes de la chronologie absolue en géologie