Quiz — Lycée Pilote Sfax - DS 1 2012.pdf

Question 1 sur 10 20:00

[{"id":6016,"question":"Quelle est la formule de la vitesse moyenne d'un mobile en mouvement rectiligne uniforme ?","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":6017,"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 produit bien de l'oxygène comme sous-produit, en plus du glucose.","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":6018,"question":"Quelle est l'unité de mesure de la tension électrique dans le système international ?","option_a":"Ampère (A)","option_b":"Volt (V)","option_c":"Ohm (Ω)","option_d":"Watt (W)","option_e":"","option_f":"","bonne_reponse":"b","explication":"La tension électrique s'exprime en volts (V) dans le système international.","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\": \"Ohm (Ω)\", \"d\": \"Watt (W)\"}}","_debug_options_count":4},{"id":6019,"question":"Le pH d'une solution acide est toujours inférieur à 7.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Par définition, une solution acide a un pH inférieur à 7.","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":6020,"question":"Quelle est la loi qui relie la tension, l'intensité et la résistance dans un circuit électrique ?","option_a":"Loi de Joule","option_b":"Loi d'Ohm","option_c":"Loi de Newton","option_d":"Loi de Lavoisier","option_e":"","option_f":"","bonne_reponse":"b","explication":"La loi d'Ohm stipule que U = R × I, où U est la tension, R la résistance et I l'intensité.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Loi de Joule\", \"b\": \"Loi d'Ohm\", \"c\": \"Loi de Newton\", \"d\": \"Loi ","_debug_options_count":4},{"id":6021,"question":"Les mitochondries sont les organites responsables de la respiration cellulaire.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Les mitochondries sont effectivement le siège de la respiration cellulaire, produisant de l'énergie sous forme d'ATP.","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":6022,"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":"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\": \"b\", \"options\": {\"a\": \"CO2\", \"b\": \"H2O\", \"c\": \"NaCl\", \"d\": \"O2\"}}","_debug_options_count":4},{"id":6023,"question":"La gravité est une force qui attire les objets vers le centre de la Terre.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La gravité est bien la force d'attraction exercée par la Terre sur les objets, les attirant vers son centre.","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":6024,"question":"Quelle est la réaction chimique qui permet de produire de l'énergie dans une pile électrique ?","option_a":"Oxydation","option_b":"Réduction","option_c":"Oxydoréduction","option_d":"Combustion","option_e":"","option_f":"","bonne_reponse":"c","explication":"Une pile électrique fonctionne grâce à une réaction d'oxydoréduction, où l'oxydation et la réduction se produisent simultanément.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Oxydation\", \"b\": \"Réduction\", \"c\": \"Oxydoréduction\", \"d\": \"Comb","_debug_options_count":4},{"id":6025,"question":"Les enzymes sont des catalyseurs biologiques qui accélèrent les réactions chimiques dans les cellules.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Les enzymes agissent comme des catalyseurs en accélérant les réactions biochimiques sans être consommées.","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}]