Quiz — cours2.pdf

Question 1 sur 10 20:00

[{"id":60557,"question":"Quelle est l'unité de base de la matière ?","option_a":"Molécule","option_b":"Atome","option_c":"Cellule","option_d":"Électron","option_e":"","option_f":"","bonne_reponse":"b","explication":"L'atome est l'unité de base de la matière, composée de protons, neutrons et électrons.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Molécule\", \"b\": \"Atome\", \"c\": \"Cellule\", \"d\": \"Électron\"}}","_debug_options_count":4},{"id":60558,"question":"Les cellules végétales possèdent une paroi cellulaire.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Les cellules végétales ont bien une paroi cellulaire en plus de la membrane cytoplasmique.","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":60559,"question":"Quel état de la matière a une forme et un volume définis ?","option_a":"Liquide","option_b":"Gaz","option_c":"Solide","option_d":"Plasma","option_e":"","option_f":"","bonne_reponse":"c","explication":"Un solide a une forme et un volume définis, contrairement aux liquides et gaz.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Liquide\", \"b\": \"Gaz\", \"c\": \"Solide\", \"d\": \"Plasma\"}}","_debug_options_count":4},{"id":60560,"question":"La photosynthèse permet aux plantes de produire :","option_a":"Du dioxygène","option_b":"Du dioxyde de carbone","option_c":"De l'azote","option_d":"De l'eau","option_e":"","option_f":"","bonne_reponse":"a","explication":"La photosynthèse produit du dioxygène (O2) à partir de dioxyde de carbone (CO2) et d'eau (H2O).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Du dioxygène\", \"b\": \"Du dioxyde de carbone\", \"c\": \"De l'azote\", ","_debug_options_count":4},{"id":60561,"question":"La force de gravité dépend de :","option_a":"La masse des objets","option_b":"La couleur des objets","option_c":"La température","option_d":"La forme des objets","option_e":"","option_f":"","bonne_reponse":"a","explication":"La force de gravité dépend principalement de la masse des objets (loi de 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\": \"La masse des objets\", \"b\": \"La couleur des objets\", \"c\": \"La temp","_debug_options_count":4},{"id":60562,"question":"Les molécules sont composées d'atomes liés entre eux.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Une molécule est un ensemble d'atomes liés chimiquement.","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":60563,"question":"Quel est le rôle principal des chloroplastes dans une cellule végétale ?","option_a":"Stocker l'énergie","option_b":"Produire de l'oxygène","option_c":"Effectuer la photosynthèse","option_d":"Digérer les nutriments","option_e":"","option_f":"","bonne_reponse":"c","explication":"Les chloroplastes sont les organites où se déroule la photosynthèse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Stocker l'énergie\", \"b\": \"Produire de l'oxygène\", \"c\": \"Effectu","_debug_options_count":4},{"id":60564,"question":"Un mélange homogène est visible à l'œil nu.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Un mélange homogène (comme l'eau salée) ne présente pas de séparation visible à l'œil nu.","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":60565,"question":"La réaction chimique entre un acide et une base produit :","option_a":"Un sel et de l'eau","option_b":"Un gaz","option_c":"Un métal","option_d":"De la lumière","option_e":"","option_f":"","bonne_reponse":"a","explication":"La réaction acide-base produit un sel et de l'eau (neutralisation).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Un sel et de l'eau\", \"b\": \"Un gaz\", \"c\": \"Un métal\", \"d\": \"De la","_debug_options_count":4},{"id":60566,"question":"Quelle est la formule chimique de l'eau ?","option_a":"CO2","option_b":"H2O","option_c":"O2","option_d":"NaCl","option_e":"","option_f":"","bonne_reponse":"b","explication":"La formule chimique de l'eau est H2O (2 atomes d'hydrogène et 1 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\": \"CO2\", \"b\": \"H2O\", \"c\": \"O2\", \"d\": \"NaCl\"}}","_debug_options_count":4}]