Quiz — Examen de Rattrapage S1 2009-2010.docx

Question 1 sur 10 20:00

[{"id":19429,"question":"Quelle est la formule de la vitesse moyenne ?","option_a":"V = d × t","option_b":"V = d \/ t","option_c":"V = t \/ d","option_d":"V = d + t","option_e":"","option_f":"","bonne_reponse":"b","explication":"La vitesse moyenne se calcule en divisant la distance parcourue (d) par le temps écoulé (t). Formule : V = d \/ t.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"V = d × t\", \"b\": \"V = d \/ t\", \"c\": \"V = t \/ d\", \"d\": \"V = d + t\"","_debug_options_count":4},{"id":19430,"question":"Un triangle rectangle a un angle de 30°. Quel est l'angle restant ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La somme des angles d'un triangle est de 180°. Si un angle est de 30° et un autre de 90° (triangle rectangle), le troisième angle est de 60°.","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":19431,"question":"Quelle est la fonction dérivée de f(x) = 3x² + 2x - 5 ?","option_a":"f'(x) = 6x + 2","option_b":"f'(x) = 3x + 2","option_c":"f'(x) = 6x - 5","option_d":"f'(x) = 3x² + 2","option_e":"","option_f":"","bonne_reponse":"a","explication":"La dérivée d'une fonction polynomiale se calcule terme par terme : f'(x) = 6x + 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"f'(x) = 6x + 2\", \"b\": \"f'(x) = 3x + 2\", \"c\": \"f'(x) = 6x - 5\", \"d","_debug_options_count":4},{"id":19432,"question":"La photosynthèse se produit-elle uniquement la nuit ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"La photosynthèse nécessite de la lumière, elle se produit donc principalement le jour.","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":19433,"question":"Quel est le résultat de 5 × (3 + 2) ?","option_a":"25","option_b":"15","option_c":"10","option_d":"35","option_e":"","option_f":"","bonne_reponse":"b","explication":"On commence par calculer l'expression entre parenthèses : 3 + 2 = 5. Puis on multiplie par 5 : 5 × 5 = 15.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"25\", \"b\": \"15\", \"c\": \"10\", \"d\": \"35\"}}","_debug_options_count":4},{"id":19434,"question":"La loi d'Ohm s'écrit U = R × I. Que représente U ?","option_a":"L'intensité du courant","option_b":"La tension électrique","option_c":"La résistance","option_d":"La puissance","option_e":"","option_f":"","bonne_reponse":"b","explication":"Dans la loi d'Ohm, U représente la tension électrique (en volts), R la résistance (en ohms), et I l'intensité du courant (en ampères).","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'intensité du courant\", \"b\": \"La tension électrique\", \"c\": \"La","_debug_options_count":4},{"id":19435,"question":"Un polygone à 5 côtés est appelé un hexagone.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Un polygone à 5 côtés est un pentagone. Un hexagone a 6 côtés.","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":19436,"question":"Quelle est la capitale de la Tunisie ?","option_a":"Tunis","option_b":"Sfax","option_c":"Sousse","option_d":"Bizerte","option_e":"","option_f":"","bonne_reponse":"a","explication":"La capitale de la Tunisie est Tunis, située dans le nord du pays.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Tunis\", \"b\": \"Sfax\", \"c\": \"Sousse\", \"d\": \"Bizerte\"}}","_debug_options_count":4},{"id":19437,"question":"La respiration cellulaire produit-elle du glucose ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"La respiration cellulaire produit de l'énergie (ATP) à partir du glucose, mais ne produit pas de glucose.","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":19438,"question":"Quel est le résultat de (-3)² ?","option_a":"-9","option_b":"9","option_c":"6","option_d":"-6","option_e":"","option_f":"","bonne_reponse":"b","explication":"L'élévation au carré d'un nombre négatif donne un résultat positif : (-3)² = 9.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"-9\", \"b\": \"9\", \"c\": \"6\", \"d\": \"-6\"}}","_debug_options_count":4}]