Quiz — Lycée Pilote Sousse - DS 1 2017.pdf

Question 1 sur 10 20:00

[{"id":20949,"question":"Quelle est l'unité de mesure de la concentration molaire ?","option_a":"mol\/L","option_b":"g\/L","option_c":"mol\/mL","option_d":"kg\/m³","option_e":"","option_f":"","bonne_reponse":"a","explication":"La concentration molaire s'exprime en moles par litre (mol\/L).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"mol\/L\", \"b\": \"g\/L\", \"c\": \"mol\/mL\", \"d\": \"kg\/m³\"}}","_debug_options_count":4},{"id":20950,"question":"La loi de Newton F = m·a s'applique-t-elle dans un référentiel non galiléen ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"La loi de Newton ne s'applique que dans un référentiel galiléen.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":20951,"question":"Quel est le rôle d'un générateur dans un circuit électrique ?","option_a":"Stocker l'énergie","option_b":"Fournir de l'énergie électrique","option_c":"Transformer l'énergie","option_d":"Mesurer la tension","option_e":"","option_f":"","bonne_reponse":"b","explication":"Un générateur fournit de l'énergie électrique au circuit.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Stocker l'énergie\", \"b\": \"Fournir de l'énergie électrique\", \"c","_debug_options_count":4},{"id":20952,"question":"Dans une réaction redox, l'oxydant est l'espèce qui :","option_a":"Gagne des électrons","option_b":"Perd des électrons","option_c":"Ne change pas d'état","option_d":"Se dissout","option_e":"","option_f":"","bonne_reponse":"a","explication":"L'oxydant gagne des électrons (il est réduit).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Gagne des électrons\", \"b\": \"Perd des électrons\", \"c\": \"Ne chang","_debug_options_count":4},{"id":20953,"question":"La tension aux bornes d'un conducteur ohmique est proportionnelle à l'intensité du courant qui le traverse.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"C'est la loi d'Ohm : U = R·I.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":20954,"question":"Quelle est la formule de la vitesse en mouvement rectiligne uniforme ?","option_a":"v = d\/t","option_b":"v = a·t","option_c":"v = m·g","option_d":"v = P·V","option_e":"","option_f":"","bonne_reponse":"a","explication":"La vitesse est le rapport de la distance parcourue par le temps écoulé.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"v = d\/t\", \"b\": \"v = a·t\", \"c\": \"v = m·g\", \"d\": \"v = P·V\"}}","_debug_options_count":4},{"id":20955,"question":"Un acide est une espèce chimique capable de :","option_a":"Céder un proton H⁺","option_b":"Accepter un proton H⁺","option_c":"Céder un électron","option_d":"Accepter un électron","option_e":"","option_f":"","bonne_reponse":"a","explication":"Un acide est une espèce qui cède un proton H⁺ (selon Brønsted).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Céder un proton H⁺\", \"b\": \"Accepter un proton H⁺\", \"c\": \"Cé","_debug_options_count":4},{"id":20956,"question":"La résistance équivalente d'un circuit en série est toujours supérieure à la plus grande résistance du circuit.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"En série, R_eq = R1 + R2 + ... \u003E R_max.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":20957,"question":"Quel phénomène physique explique la formation d'un arc-en-ciel ?","option_a":"La diffraction","option_b":"La réflexion","option_c":"La réfraction","option_d":"La polarisation","option_e":"","option_f":"","bonne_reponse":"c","explication":"L'arc-en-ciel est dû à la réfraction et à la dispersion de la lumière.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"La diffraction\", \"b\": \"La réflexion\", \"c\": \"La réfraction\", \"d\"","_debug_options_count":4},{"id":20958,"question":"La constante d'équilibre K d'une réaction dépend de :","option_a":"La température","option_b":"La pression","option_c":"Le volume","option_d":"La couleur","option_e":"","option_f":"","bonne_reponse":"a","explication":"La constante d'équilibre ne dépend que de la température.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"La température\", \"b\": \"La pression\", \"c\": \"Le volume\", \"d\": \"La ","_debug_options_count":4}]