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Question 1 sur 10 10:00

[{"id":33613,"question":"Quel est le résultat de l'opération 15 × (7 - 3) ?","option_a":"45","option_b":"60","option_c":"30","option_d":"12","option_e":"","option_f":"","bonne_reponse":"B","explication":"L'ordre des opérations (PEMDAS\/BODMAS) impose de calculer d'abord la parenthèse : 7 - 3 = 4, puis la multiplication : 15 × 4 = 60.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33614,"question":"En physique, la vitesse est égale à la distance divisée par le temps.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"La formule correcte est vitesse = distance \/ temps, donc l'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33615,"question":"Quel gaz est responsable de l'effet de serre le plus important ?","option_a":"Oxygène (O₂)","option_b":"Dioxyde de carbone (CO₂)","option_c":"Azote (N₂)","option_d":"Hélium (He)","option_e":"","option_f":"","bonne_reponse":"B","explication":"Le dioxyde de carbone (CO₂) est le principal gaz à effet de serre d'origine humaine, contribuant au réchauffement climatique.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33616,"question":"En français, quel est le pluriel de 'cheval' ?","option_a":"Chevals","option_b":"Chevaux","option_c":"Cheveaux","option_d":"Chevalx","option_e":"","option_f":"","bonne_reponse":"B","explication":"Le pluriel de 'cheval' est 'chevaux', selon les règles de formation du pluriel des noms en '-al'.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33617,"question":"En SVT, les chloroplastes sont présents uniquement dans les cellules animales.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Les chloroplastes sont spécifiques aux cellules végétales et aux algues, où ils permettent la photosynthèse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33618,"question":"Quelle est la capitale de l'Australie ?","option_a":"Sydney","option_b":"Melbourne","option_c":"Canberra","option_d":"Brisbane","option_e":"","option_f":"","bonne_reponse":"C","explication":"Canberra est la capitale administrative de l'Australie, bien que Sydney et Melbourne soient plus connues.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33619,"question":"En mathématiques, quelle est la formule de l'aire d'un cercle ?","option_a":"π × rayon","option_b":"π × rayon²","option_c":"2 × π × rayon","option_d":"π × diamètre","option_e":"","option_f":"","bonne_reponse":"B","explication":"L'aire d'un cercle se calcule avec la formule A = π × r², où r est le rayon.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33620,"question":"En anglais, le mot 'book' est un verbe.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"'Book' est principalement un nom (un livre), mais il peut aussi être un verbe signifiant 'réserver'.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33621,"question":"Quel est le résultat de 3\/4 + 1\/2 ?","option_a":"1","option_b":"5\/4","option_c":"4\/6","option_d":"3\/2","option_e":"","option_f":"","bonne_reponse":"B","explication":"Pour additionner ces fractions, trouvez un dénominateur commun (4) : 3\/4 + 2\/4 = 5\/4.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33622,"question":"En histoire, la Révolution française a commencé en 1789.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"La Révolution française a effectivement débuté en 1789 avec la prise de la Bastille le 14 juillet.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]