Quiz — P-PB21-40-FM.pdf

Question 1 sur 10 20:00

[{"id":135288,"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":"L'unité de 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\": \"Joule (J)\", \"c\": \"Watt (W)\", \"d\": \"Pascal (Pa)","_debug_options_count":4},{"id":135289,"question":"La loi d'Ohm s'exprime par la relation U = R × I.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La loi d'Ohm est bien 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\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":135290,"question":"Quel est le symbole de la vitesse dans une équation de mouvement ?","option_a":"v","option_b":"a","option_c":"t","option_d":"d","option_e":"","option_f":"","bonne_reponse":"a","explication":"Le symbole de la vitesse est 'v', souvent accompagné d'une flèche pour indiquer sa direction.","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\", \"b\": \"a\", \"c\": \"t\", \"d\": \"d\"}}","_debug_options_count":4},{"id":135291,"question":"La puissance électrique se calcule avec la formule :","option_a":"P = U × I","option_b":"P = R × I²","option_c":"P = U² \/ R","option_d":"Toutes ces réponses","option_e":"","option_f":"","bonne_reponse":"d","explication":"La puissance électrique peut s'exprimer par P = U × I, P = R × I² ou P = U² \/ R selon les données disponibles.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"d\", \"options\": {\"a\": \"P = U × I\", \"b\": \"P = R × I²\", \"c\": \"P = U² \/ R\", \"d\": \"Toute","_debug_options_count":4},{"id":135292,"question":"Un objet en chute libre est soumis uniquement à son poids.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"En chute libre (sans frottement), un objet n'est soumis qu'à son poids, ce qui entraîne une accélération constante.","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":135293,"question":"Quelle est la relation entre la période T et la fréquence f d'un signal périodique ?","option_a":"T = 1\/f","option_b":"f = 1\/T","option_c":"T × f = 1","option_d":"Toutes ces réponses","option_e":"","option_f":"","bonne_reponse":"d","explication":"La période T et la fréquence f sont inversement proportionnelles : T = 1\/f et f = 1\/T.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"d\", \"options\": {\"a\": \"T = 1\/f\", \"b\": \"f = 1\/T\", \"c\": \"T × f = 1\", \"d\": \"Toutes ces ré","_debug_options_count":4},{"id":135294,"question":"Dans un circuit électrique en série, l'intensité du courant est la même dans tous les dipôles.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"En série, l'intensité est constante dans tout le circuit, car il n'y a qu'un seul chemin pour le 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\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":135295,"question":"Le travail d'une force se mesure en :","option_a":"Newton (N)","option_b":"Joule (J)","option_c":"Watt (W)","option_d":"Pascal (Pa)","option_e":"","option_f":"","bonne_reponse":"b","explication":"Le travail d'une force s'exprime en Joules (J), unité d'énergie 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\": \"b\", \"options\": {\"a\": \"Newton (N)\", \"b\": \"Joule (J)\", \"c\": \"Watt (W)\", \"d\": \"Pascal (Pa)","_debug_options_count":4},{"id":135296,"question":"La loi de la réflexion de la lumière stipule que l'angle d'incidence est égal à :","option_a":"L'angle de réfraction","option_b":"L'angle de réflexion","option_c":"90°","option_d":"L'angle d'incidence lui-même","option_e":"","option_f":"","bonne_reponse":"b","explication":"La loi de la réflexion indique que l'angle d'incidence est égal à l'angle de réflexion par rapport à la normale.","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'angle de réfraction\", \"b\": \"L'angle de réflexion\", \"c\": \"90°","_debug_options_count":4},{"id":135297,"question":"Un gaz parfait suit la loi PV = nRT.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La loi des gaz parfaits est bien PV = nRT, où P est la pression, V le volume, n la quantité de matière, R la constante des gaz parfaits et T la température absolue.","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}]