Quiz — Lycée Pilote Sfax - DC 1 2012.pdf

Question 1 sur 10 20:00

[{"id":4506,"question":"Quelle est la formule chimique de l’eau ?","option_a":"A. H2O","option_b":"B. CO2","option_c":"C. NaCl","option_d":"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\": \"A. H2O\", \"b\": \"B. CO2\", \"c\": \"C. NaCl\", \"d\": \"D. O2\"}}","_debug_options_count":4},{"id":4507,"question":"La loi d’Ohm s’exprime par la formule 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 stipule bien que la tension U est égale au produit de la résistance R par l’intensité du courant 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":4508,"question":"Quel est le rôle principal des chloroplastes dans une cellule végétale ?","option_a":"A. Stocker l’énergie sous forme d’ATP","option_b":"B. Réaliser la photosynthèse","option_c":"C. Produire des protéines","option_d":"D. Contrôler la division cellulaire","option_e":"","option_f":"","bonne_reponse":"b","explication":"Les chloroplastes contiennent de la chlorophylle et permettent la photosynthèse, processus essentiel à la production de glucose et 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\": \"A. Stocker l’énergie sous forme d’ATP\", \"b\": \"B. Réaliser l","_debug_options_count":4},{"id":4509,"question":"La vitesse d’un objet en mouvement uniforme est calculée par la formule :","option_a":"A. v = d × t","option_b":"B. v = d \/ t","option_c":"C. v = t \/ d","option_d":"D. v = a × t","option_e":"","option_f":"","bonne_reponse":"b","explication":"La vitesse est le rapport entre la distance parcourue (d) et le temps (t) : v = d \/ 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\": \"A. v = d × t\", \"b\": \"B. v = d \/ t\", \"c\": \"C. v = t \/ d\", \"d\": \"D","_debug_options_count":4},{"id":4510,"question":"Les enzymes sont des catalyseurs biologiques qui accélèrent les réactions chimiques.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Les enzymes sont bien des catalyseurs biologiques qui augmentent la vitesse des réactions chimiques 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},{"id":4511,"question":"Quelle est l’unité de mesure de la force dans le système international (SI) ?","option_a":"A. Le newton (N)","option_b":"B. Le joule (J)","option_c":"C. Le watt (W)","option_d":"D. Le pascal (Pa)","option_e":"","option_f":"","bonne_reponse":"a","explication":"L’unité de mesure de la force dans le système international est le newton (N), en hommage à Isaac Newton.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"A. Le newton (N)\", \"b\": \"B. Le joule (J)\", \"c\": \"C. Le watt (W)\",","_debug_options_count":4},{"id":4512,"question":"La respiration cellulaire produit de l’énergie sous forme de :","option_a":"A. Glucose","option_b":"B. ATP","option_c":"C. Oxygène","option_d":"D. Dioxyde de carbone","option_e":"","option_f":"","bonne_reponse":"b","explication":"La respiration cellulaire permet de produire de l’ATP (adénosine triphosphate), la principale source d’énergie pour les cellules.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"A. Glucose\", \"b\": \"B. ATP\", \"c\": \"C. Oxygène\", \"d\": \"D. Dioxyde ","_debug_options_count":4},{"id":4513,"question":"La pression atmosphérique diminue-t-elle avec l’altitude ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Oui, la pression atmosphérique diminue avec l’altitude, car la quantité d’air au-dessus diminue.","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":4514,"question":"Quel est le symbole chimique de l’or ?","option_a":"A. Ag","option_b":"B. Au","option_c":"C. Fe","option_d":"D. Cu","option_e":"","option_f":"","bonne_reponse":"b","explication":"Le symbole chimique de l’or est Au, dérivé de son nom latin 'Aurum'.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"A. Ag\", \"b\": \"B. Au\", \"c\": \"C. Fe\", \"d\": \"D. Cu\"}}","_debug_options_count":4},{"id":4515,"question":"La loi de la gravitation universelle a été formulée par :","option_a":"A. Albert Einstein","option_b":"B. Isaac Newton","option_c":"C. Galileo Galilei","option_d":"D. Nikola Tesla","option_e":"","option_f":"","bonne_reponse":"b","explication":"La loi de la gravitation universelle a été formulée par Isaac Newton en 1687.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"A. Albert Einstein\", \"b\": \"B. Isaac Newton\", \"c\": \"C. Galileo Gal","_debug_options_count":4}]