Quiz — syn 2-5.pdf

Question 1 sur 10 20:00

[{"id":8270,"question":"Quelle est l'unité de mesure de la force dans le système international ?","option_a":"Newton (N)","option_b":"Pascal (Pa)","option_c":"Joule (J)","option_d":"Watt (W)","option_e":"","option_f":"","bonne_reponse":"a","explication":"L'unité de mesure de la force dans le système international est le Newton (N), en hommage à Isaac Newton.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Newton (N)\", \"b\": \"Pascal (Pa)\", \"c\": \"Joule (J)\", \"d\": \"Watt (W)","_debug_options_count":4},{"id":8271,"question":"La tension électrique se mesure avec un voltmètre.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai, la tension électrique se mesure bien avec un voltmètre, branché en parallèle dans un circuit.","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":8272,"question":"Quel est le symbole chimique de l'oxygène ?","option_a":"O","option_b":"Ox","option_c":"O2","option_d":"Oy","option_e":"","option_f":"","bonne_reponse":"a","explication":"Le symbole chimique de l'oxygène est O, et sa molécule diatomique est O2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"O\", \"b\": \"Ox\", \"c\": \"O2\", \"d\": \"Oy\"}}","_debug_options_count":4},{"id":8273,"question":"La loi d'Ohm s'exprime par la formule :","option_a":"U = R × I","option_b":"P = U × I","option_c":"E = m × g × h","option_d":"F = m × a","option_e":"","option_f":"","bonne_reponse":"a","explication":"La loi d'Ohm s'exprime par U = R × I, où U est la tension, R la résistance et I l'intensité du courant.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"U = R × I\", \"b\": \"P = U × I\", \"c\": \"E = m × g × h\", \"d\": \"F =","_debug_options_count":4},{"id":8274,"question":"Un atome est composé de protons, neutrons et électrons.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai, un atome est composé d'un noyau (protons et neutrons) et d'électrons en mouvement autour du noyau.","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":8275,"question":"Quelle est la formule chimique de l'eau ?","option_a":"H2O","option_b":"CO2","option_c":"NaCl","option_d":"CH4","option_e":"","option_f":"","bonne_reponse":"a","explication":"La formule chimique de l'eau est H2O, composée 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\": \"a\", \"options\": {\"a\": \"H2O\", \"b\": \"CO2\", \"c\": \"NaCl\", \"d\": \"CH4\"}}","_debug_options_count":4},{"id":8276,"question":"La vitesse d'un objet se calcule par la formule :","option_a":"v = d \/ t","option_b":"v = t \/ d","option_c":"v = m × g","option_d":"v = F \/ m","option_e":"","option_f":"","bonne_reponse":"a","explication":"La vitesse d'un objet se calcule par v = d \/ t, où d est la distance parcourue et t le temps mis.","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 = m × g\", \"d\": \"v = F \/ m\"","_debug_options_count":4},{"id":8277,"question":"Les métaux sont de bons conducteurs électriques.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai, les métaux sont de bons conducteurs électriques grâce à la présence d'électrons libres.","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":8278,"question":"Quel est le pH d'une solution neutre ?","option_a":"7","option_b":"0","option_c":"14","option_d":"1","option_e":"","option_f":"","bonne_reponse":"a","explication":"Le pH d'une solution neutre est 7. Un pH inférieur à 7 indique une solution acide, et supérieur à 7 une solution basique.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"7\", \"b\": \"0\", \"c\": \"14\", \"d\": \"1\"}}","_debug_options_count":4},{"id":8279,"question":"La pression se mesure en Pascals (Pa) dans le système international.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai, la pression se mesure en Pascals (Pa) dans le système international.","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}]