Quiz — Lycée Pilote Médenine - DC 2 2020.pdf

Question 1 sur 10 20:00

[{"id":3866,"question":"Quelle est l'unité de mesure de la force dans le système international ?","option_a":"Newton (N)","option_b":"Joule (J)","option_c":"Watt (W)","option_d":"Pascal (Pa)","option_e":"","option_f":"","bonne_reponse":"a","explication":"Le Newton (N) est l'unité de mesure de la force dans le système international, nommée en l'honneur d'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\": \"Joule (J)\", \"c\": \"Watt (W)\", \"d\": \"Pascal (Pa)","_debug_options_count":4},{"id":3867,"question":"Une réaction acido-basique produit toujours de l'eau.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai. Une réaction acido-basique est une réaction de transfert de protons qui produit toujours de l'eau et un sel.","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":3868,"question":"Quel est le symbole chimique de l'élément oxygène ?","option_a":"O","option_b":"Ox","option_c":"O2","option_d":"Og","option_e":"","option_f":"","bonne_reponse":"a","explication":"Le symbole chimique de l'oxygène est 'O', tandis que 'O2' représente sa forme moléculaire diatomique.","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\": \"Og\"}}","_debug_options_count":4},{"id":3869,"question":"La loi d'Ohm s'exprime par la formule :","option_a":"U = R\/I","option_b":"U = R × I","option_c":"I = U × R","option_d":"R = U\/I","option_e":"","option_f":"","bonne_reponse":"b","explication":"La loi d'Ohm s'écrit 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\": \"b\", \"options\": {\"a\": \"U = R\/I\", \"b\": \"U = R × I\", \"c\": \"I = U × R\", \"d\": \"R = U\/I\"}}","_debug_options_count":4},{"id":3870,"question":"Les mitochondries sont des organites cellulaires responsables de la respiration cellulaire.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai. Les mitochondries sont souvent appelées 'centrales énergétiques' de la cellule car elles produisent de l'ATP via 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":3871,"question":"Quel est le pH d'une solution neutre à 25°C ?","option_a":"pH = 0","option_b":"pH = 7","option_c":"pH = 14","option_d":"pH = 1","option_e":"","option_f":"","bonne_reponse":"b","explication":"À 25°C, une solution neutre a un pH de 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\": \"b\", \"options\": {\"a\": \"pH = 0\", \"b\": \"pH = 7\", \"c\": \"pH = 14\", \"d\": \"pH = 1\"}}","_debug_options_count":4},{"id":3872,"question":"La photosynthèse se déroule dans :","option_a":"Les mitochondries","option_b":"Les chloroplastes","option_c":"Le noyau cellulaire","option_d":"Le réticulum endoplasmique","option_e":"","option_f":"","bonne_reponse":"b","explication":"La photosynthèse a lieu dans les chloroplastes, des organites présents dans les cellules végétales.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Les mitochondries\", \"b\": \"Les chloroplastes\", \"c\": \"Le noyau cell","_debug_options_count":4},{"id":3873,"question":"Un corps en mouvement rectiligne uniforme a une accélération nulle.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai. Un mouvement rectiligne uniforme signifie que la vitesse est constante, donc l'accélération (variation de vitesse) est nulle.","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":3874,"question":"Quel est le gaz responsable de l'effet de serre le plus abondant dans l'atmosphère terrestre ?","option_a":"Le méthane (CH4)","option_b":"Le dioxyde de carbone (CO2)","option_c":"La vapeur d'eau (H2O)","option_d":"L'ozone (O3)","option_e":"","option_f":"","bonne_reponse":"c","explication":"La vapeur d'eau (H2O) est le gaz à effet de serre le plus abondant dans l'atmosphère, bien que le CO2 soit souvent plus médiatisé.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Le méthane (CH4)\", \"b\": \"Le dioxyde de carbone (CO2)\", \"c\": \"La ","_debug_options_count":4},{"id":3875,"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":"Vrai. C'est la loi d'Ohm, qui établit une relation de proportionnalité entre la tension (U) et l'intensité (I) pour un conducteur ohmique.","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}]