Quiz — Physique.ép.cont.corr.pdf

Question 1 sur 10 20:00

[{"id":16189,"question":"Quelle est l'unité SI de la force ?","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 SI de la force 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":16190,"question":"La loi d'Ohm s'écrit : U = R × I. Vrai ou Faux ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La loi d'Ohm relie la tension U, la résistance R et l'intensité I par la formule U = R × I.","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":16191,"question":"Quel phénomène physique est responsable de la formation d'un arc-en-ciel ?","option_a":"Réflexion","option_b":"Réfraction","option_c":"Diffraction","option_d":"Interférence","option_e":"","option_f":"","bonne_reponse":"b","explication":"L'arc-en-ciel est dû à la réfraction de la lumière dans les gouttes d'eau, suivie d'une réflexion interne.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Réflexion\", \"b\": \"Réfraction\", \"c\": \"Diffraction\", \"d\": \"Interf","_debug_options_count":4},{"id":16192,"question":"La vitesse d'un mobile en mouvement rectiligne uniforme est constante. Vrai ou Faux ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"En mouvement rectiligne uniforme, la vitesse est constante en direction et en intensité.","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":16193,"question":"Quelle est la formule de l'énergie cinétique d'un corps en mouvement ?","option_a":"E_c = ½ m v²","option_b":"E_c = m g h","option_c":"E_c = R I²","option_d":"E_c = P t","option_e":"","option_f":"","bonne_reponse":"a","explication":"L'énergie cinétique est donnée par E_c = ½ m v², où m est la masse et v la vitesse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"E_c = ½ m v²\", \"b\": \"E_c = m g h\", \"c\": \"E_c = R I²\", \"d\": \"E_","_debug_options_count":4},{"id":16194,"question":"La loi de la gravitation universelle s'applique uniquement aux planètes. Vrai ou Faux ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"La loi de la gravitation universelle s'applique à tous les corps massiques, pas seulement aux planètes.","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":16195,"question":"Quel appareil mesure l'intensité du courant électrique ?","option_a":"Voltmètre","option_b":"Ampèremètre","option_c":"Ohmmètre","option_d":"Générateur","option_e":"","option_f":"","bonne_reponse":"b","explication":"L'ampèremètre est l'appareil de mesure de l'intensité du courant électrique.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Voltmètre\", \"b\": \"Ampèremètre\", \"c\": \"Ohmmètre\", \"d\": \"Géné","_debug_options_count":4},{"id":16196,"question":"La résistance d'un conducteur ohmique dépend de sa longueur. Vrai ou Faux ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La résistance d'un conducteur ohmique dépend de sa longueur, de sa section et de la nature du matériau (loi de Pouillet).","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":16197,"question":"Quelle est la relation entre la période T et la fréquence f d'un signal périodique ?","option_a":"T = f","option_b":"T = 1\/f","option_c":"T = f²","option_d":"T = 2πf","option_e":"","option_f":"","bonne_reponse":"b","explication":"La période T est l'inverse de la fréquence f : T = 1\/f.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"T = f\", \"b\": \"T = 1\/f\", \"c\": \"T = f²\", \"d\": \"T = 2πf\"}}","_debug_options_count":4},{"id":16198,"question":"Un objet placé à 20 cm d'une lentille convergente de distance focale 10 cm donne une image réelle. Vrai ou Faux ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Un objet placé à une distance supérieure à la distance focale (20 cm \u003E 10 cm) donne une image réelle avec une lentille convergente.","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}]