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Question 1 sur 10 10:00

[{"id":56801,"question":"Quelle est la formule de la dérivée de la fonction f(x) = x² ?","option_a":"f'(x) = 2x","option_b":"f'(x) = x","option_c":"f'(x) = 2","option_d":"f'(x) = x²","option_e":"","option_f":"","bonne_reponse":"A","explication":"La dérivée de x² est obtenue en appliquant la règle de puissance : f'(x) = 2x.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56802,"question":"La somme des angles d'un triangle est égale à 180 degrés.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"C'est une propriété fondamentale de la géométrie euclidienne.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56803,"question":"Quel est le résultat de 3 × (4 + 2) ?","option_a":"18","option_b":"24","option_c":"14","option_d":"9","option_e":"","option_f":"","bonne_reponse":"A","explication":"On applique d'abord la règle des parenthèses : 4 + 2 = 6, puis 3 × 6 = 18.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56804,"question":"L'eau gèle à 0°C sous pression atmosphérique normale.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"C'est une constante physique bien établie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56805,"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":"Tunis est la capitale administrative et politique de la Tunisie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56806,"question":"La photosynthèse produit du dioxygène.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Les plantes produisent du dioxygène lors de la photosynthèse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56807,"question":"Quel est le symbole chimique de l'or ?","option_a":"O","option_b":"Au","option_c":"Ag","option_d":"Fe","option_e":"","option_f":"","bonne_reponse":"B","explication":"Le symbole de l'or est Au, dérivé de son nom latin 'Aurum'.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56808,"question":"La loi d'Ohm s'écrit 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 relie la tension (U), la résistance (R) et l'intensité (I) : U = R × I.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56809,"question":"Quelle est la racine carrée de 144 ?","option_a":"10","option_b":"12","option_c":"14","option_d":"16","option_e":"","option_f":"","bonne_reponse":"B","explication":"12 × 12 = 144, donc la racine carrée de 144 est 12.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56810,"question":"Le théorème de Pythagore s'applique uniquement aux triangles rectangles.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Le théorème de Pythagore est valable uniquement pour les triangles rectangles.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]