Quiz — corDS1-4S-18-19.pdf

Question 1 sur 10 20:00

[{"id":94651,"question":"Quelle est la formule de la vitesse en physique ?","option_a":"v = d\/t","option_b":"v = t\/d","option_c":"v = d × t","option_d":"v = a × t","option_e":"","option_f":"","bonne_reponse":"a","explication":"La vitesse est définie comme la distance parcourue divisée par le temps écoulé : v = d\/t.","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 = t\/d\", \"c\": \"v = d × t\", \"d\": \"v = a × t\"}}","_debug_options_count":4},{"id":94652,"question":"La photosynthèse produit-elle de l'oxygène ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La photosynthèse permet aux plantes de produire de l'oxygène à partir de dioxyde de carbone et de lumière.","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":94653,"question":"Quel est le symbole chimique de l'eau ?","option_a":"O2","option_b":"H2O","option_c":"CO2","option_d":"N2","option_e":"","option_f":"","bonne_reponse":"b","explication":"Le symbole chimique de l'eau est H2O, composé de deux atomes d'hydrogène et d'un atome d'oxygène.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"O2\", \"b\": \"H2O\", \"c\": \"CO2\", \"d\": \"N2\"}}","_debug_options_count":4},{"id":94654,"question":"La loi d'Ohm s'écrit U = R × I. Que représente U ?","option_a":"L'intensité du courant","option_b":"La tension électrique","option_c":"La résistance","option_d":"La puissance","option_e":"","option_f":"","bonne_reponse":"b","explication":"U représente la tension électrique (en volts) dans 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\": \"b\", \"options\": {\"a\": \"L'intensité du courant\", \"b\": \"La tension électrique\", \"c\": \"La","_debug_options_count":4},{"id":94655,"question":"Les mitochondries sont-elles responsables de la respiration cellulaire ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Les mitochondries sont les organites cellulaires où se déroule la respiration cellulaire.","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":94656,"question":"Quelle est l'unité de mesure de la résistance électrique ?","option_a":"Volt","option_b":"Ampère","option_c":"Ohm","option_d":"Watt","option_e":"","option_f":"","bonne_reponse":"c","explication":"L'unité de mesure de la résistance électrique est l'ohm (Ω).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Volt\", \"b\": \"Ampère\", \"c\": \"Ohm\", \"d\": \"Watt\"}}","_debug_options_count":4},{"id":94657,"question":"Un atome est électriquement neutre car il contient autant de protons que d'électrons.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Un atome est électriquement neutre car le nombre de protons (charges positives) est égal au nombre d'électrons (charges négatives).","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":94658,"question":"Quelle est la formule chimique du dioxyde de carbone ?","option_a":"CO","option_b":"CO2","option_c":"H2O","option_d":"O2","option_e":"","option_f":"","bonne_reponse":"b","explication":"Le dioxyde de carbone a pour formule chimique CO2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"CO\", \"b\": \"CO2\", \"c\": \"H2O\", \"d\": \"O2\"}}","_debug_options_count":4},{"id":94659,"question":"La force de gravitation dépend-elle de la masse des objets ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La force de gravitation dépend de la masse des deux objets et de la distance qui les sépare (F = G × m1 × m2 \/ d²).","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":94660,"question":"Quel est le pH d'une solution neutre ?","option_a":"pH = 0","option_b":"pH = 7","option_c":"pH = 14","option_d":"pH = 5","option_e":"","option_f":"","bonne_reponse":"b","explication":"Le pH d'une solution neutre est égal à 7.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"pH = 0\", \"b\": \"pH = 7\", \"c\": \"pH = 14\", \"d\": \"pH = 5\"}}","_debug_options_count":4}]