Quiz — Lycée Pilote Médenine - DC 1 2014.pdf

Question 1 sur 10 20:00

[{"id":14679,"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 = a × 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).","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 = a × t","_debug_options_count":4},{"id":14680,"question":"Un atome est composé d’un noyau et d’électrons.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Un atome est effectivement constitué d’un noyau (protons et neutrons) autour duquel gravitent les électrons.","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":14681,"question":"Quelle est l’unité de mesure de la tension électrique ?","option_a":"Ampère (A)","option_b":"Volt (V)","option_c":"Watt (W)","option_d":"Ohm (Ω)","option_e":"","option_f":"","bonne_reponse":"b","explication":"La tension électrique se mesure en volts (V), tandis que l’intensité se mesure en ampères (A).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Ampère (A)\", \"b\": \"Volt (V)\", \"c\": \"Watt (W)\", \"d\": \"Ohm (Ω)\"}}","_debug_options_count":4},{"id":14682,"question":"La photosynthèse permet aux plantes de produire de l’oxygène.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La photosynthèse est le processus par lequel les plantes convertissent le CO₂ en O₂ grâce à la lumière.","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":14683,"question":"Quelle est la formule chimique de l’eau ?","option_a":"CO₂","option_b":"H₂O","option_c":"NaCl","option_d":"O₂","option_e":"","option_f":"","bonne_reponse":"b","explication":"L’eau est composée de deux atomes d’hydrogène et d’un atome d’oxygène, d’où sa formule H₂O.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"CO₂\", \"b\": \"H₂O\", \"c\": \"NaCl\", \"d\": \"O₂\"}}","_debug_options_count":4},{"id":14684,"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) 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":14685,"question":"Quel est le rôle des chloroplastes dans une cellule végétale ?","option_a":"Stocker l’énergie","option_b":"Produire de l’oxygène","option_c":"Effectuer la photosynthèse","option_d":"Synthétiser les protéines","option_e":"","option_f":"","bonne_reponse":"c","explication":"Les chloroplastes contiennent la chlorophylle et sont le siège de la photosynthèse dans les cellules végétales.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Stocker l’énergie\", \"b\": \"Produire de l’oxygène\", \"c\": \"Eff","_debug_options_count":4},{"id":14686,"question":"La molécule de dioxygène (O₂) est composée de deux atomes d’oxygène.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Le dioxygène (O₂) est une molécule diatomique, composée de deux atomes d’oxygène liés ensemble.","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":14687,"question":"Quelle est l’énergie cinétique d’un objet de masse 2 kg se déplaçant à 3 m\/s ?","option_a":"3 J","option_b":"6 J","option_c":"9 J","option_d":"18 J","option_e":"","option_f":"","bonne_reponse":"c","explication":"L’énergie cinétique se calcule avec la formule Ec = ½ × m × v² = ½ × 2 × 3² = 9 J.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"3 J\", \"b\": \"6 J\", \"c\": \"9 J\", \"d\": \"18 J\"}}","_debug_options_count":4},{"id":14688,"question":"La mitose est un processus de division cellulaire qui permet la reproduction sexuée.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"La mitose est une division cellulaire asexuée, tandis que la méiose est liée à la reproduction sexuée.","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}]