Quiz — تعليمية العلوم.ppt

Question 1 sur 10 20:00

[{"id":81369,"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 mesure de la force est le Newton (N), en hommage à Isaac Newton, qui a formulé les lois du mouvement.","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":81370,"question":"Un mélange homogène est toujours transparent.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Faux : Un mélange homogène est uniforme à l'échelle microscopique, mais il n'est pas nécessairement transparent (exemple : l'eau salée est homogène mais non transparente si elle est très concentrée).","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":81371,"question":"Quel gaz est produit lors de la photosynthèse ?","option_a":"Oxygène (O₂)","option_b":"Dioxyde de carbone (CO₂)","option_c":"Azote (N₂)","option_d":"Hydrogène (H₂)","option_e":"","option_f":"","bonne_reponse":"a","explication":"La photosynthèse produit de l'oxygène (O₂) comme sous-produit, en plus du glucose, grâce à l'énergie lumineuse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Oxygène (O₂)\", \"b\": \"Dioxyde de carbone (CO₂)\", \"c\": \"Azote ","_debug_options_count":4},{"id":81372,"question":"La loi d'Ohm s'applique à tous les conducteurs électriques.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Faux : La loi d'Ohm (U = R × I) ne s'applique qu'aux conducteurs ohmiques, comme les métaux, mais pas aux semi-conducteurs ou aux gaz ionisés.","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":81373,"question":"Quelle est la formule chimique de l'eau ?","option_a":"H₂O","option_b":"CO₂","option_c":"NaCl","option_d":"O₂","option_e":"","option_f":"","bonne_reponse":"a","explication":"La formule chimique de l'eau est H₂O, composée de deux atomes d'hydrogène et d'un atome d'oxygène.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"H₂O\", \"b\": \"CO₂\", \"c\": \"NaCl\", \"d\": \"O₂\"}}","_debug_options_count":4},{"id":81374,"question":"Les cellules animales possèdent une paroi cellulaire.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Faux : Seules les cellules végétales possèdent une paroi cellulaire rigide en cellulose. Les cellules animales n'en ont pas.","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":81375,"question":"Quel phénomène explique la formation des nuages ?","option_a":"Condensation","option_b":"Évaporation","option_c":"Sublimation","option_d":"Fusion","option_e":"","option_f":"","bonne_reponse":"a","explication":"La formation des nuages est due à la condensation de la vapeur d'eau dans l'atmosphère, lorsque l'air se refroidit.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Condensation\", \"b\": \"Évaporation\", \"c\": \"Sublimation\", \"d\": \"Fus","_debug_options_count":4},{"id":81376,"question":"La vitesse de la lumière dans le vide est d'environ :","option_a":"300 000 km\/s","option_b":"150 000 km\/s","option_c":"500 000 km\/s","option_d":"100 000 km\/s","option_e":"","option_f":"","bonne_reponse":"a","explication":"La vitesse de la lumière dans le vide est d'environ 300 000 km\/s, une constante fondamentale en physique.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"300 000 km\/s\", \"b\": \"150 000 km\/s\", \"c\": \"500 000 km\/s\", \"d\": \"10","_debug_options_count":4},{"id":81377,"question":"Un acide a un pH :","option_a":"Supérieur à 7","option_b":"Égal à 7","option_c":"Inférieur à 7","option_d":"Variable selon la concentration","option_e":"","option_f":"","bonne_reponse":"c","explication":"Un acide a un pH inférieur à 7. Plus le pH est bas, plus l'acide est concentré et fort.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Supérieur à 7\", \"b\": \"Égal à 7\", \"c\": \"Inférieur à 7\", \"d\":","_debug_options_count":4},{"id":81378,"question":"Les mitochondries sont les centrales énergétiques de la cellule.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai : Les mitochondries produisent de l'énergie (ATP) grâce à la respiration cellulaire, d'où leur surnom de 'centrales énergétiques'.","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}]