Quiz — syn 1 2014.pdf

Question 1 sur 10 20:00

[{"id":23009,"question":"Quel est l'état de la matière caractérisé par une forme et un volume définis ?","option_a":"Gaz","option_b":"Liquide","option_c":"Solide","option_d":"Plasma","option_e":"","option_f":"","bonne_reponse":"c","explication":"Un solide a une forme et un volume bien définis, contrairement aux autres états de la matière.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Gaz\", \"b\": \"Liquide\", \"c\": \"Solide\", \"d\": \"Plasma\"}}","_debug_options_count":4},{"id":23010,"question":"La fusion est une transformation physique qui passe de l'état solide à l'état liquide.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La fusion est bien une transformation physique où un solide devient liquide sous l'effet de la chaleur.","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":23011,"question":"Quel est le solvant universel ?","option_a":"Alcool","option_b":"Eau","option_c":"Acétone","option_d":"Huile","option_e":"","option_f":"","bonne_reponse":"b","explication":"L'eau est appelée solvant universel car elle peut dissoudre de nombreuses substances.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Alcool\", \"b\": \"Eau\", \"c\": \"Acétone\", \"d\": \"Huile\"}}","_debug_options_count":4},{"id":23012,"question":"Une solution saturée est une solution dans laquelle on ne peut plus dissoudre davantage de soluté.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Une solution saturée ne peut plus dissoudre de soluté supplémentaire à une température donnée.","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":23013,"question":"Quel est le symbole chimique de l'oxygène ?","option_a":"O2","option_b":"H2","option_c":"N2","option_d":"CO2","option_e":"","option_f":"","bonne_reponse":"a","explication":"Le symbole chimique de l'oxygène est O, mais il est souvent présent sous forme de molécule diatomique O2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"O2\", \"b\": \"H2\", \"c\": \"N2\", \"d\": \"CO2\"}}","_debug_options_count":4},{"id":23014,"question":"La conductivité électrique est une propriété des métaux.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Les métaux sont de bons conducteurs électriques en raison de la présence d'électrons libres.","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":23015,"question":"Quel est le nom du changement d'état de l'eau liquide en glace ?","option_a":"Vaporisation","option_b":"Condensation","option_c":"Solidification","option_d":"Sublimation","option_e":"","option_f":"","bonne_reponse":"c","explication":"La solidification est le passage de l'état liquide à l'état solide, comme lorsque l'eau gèle.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Vaporisation\", \"b\": \"Condensation\", \"c\": \"Solidification\", \"d\": \"","_debug_options_count":4},{"id":23016,"question":"Un mélange homogène est un mélange où les constituants ne sont pas visibles à l'œil nu.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Un mélange homogène est uniforme et ses composants ne peuvent pas être distingués.","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":23017,"question":"Quel est l'outil utilisé pour mesurer la masse d'un objet ?","option_a":"Thermomètre","option_b":"Balance","option_c":"Baromètre","option_d":"Dynamomètre","option_e":"","option_f":"","bonne_reponse":"b","explication":"La balance est l'instrument de mesure de la masse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Thermomètre\", \"b\": \"Balance\", \"c\": \"Baromètre\", \"d\": \"Dynamomè","_debug_options_count":4},{"id":23018,"question":"La sublimation est le passage direct de l'état solide à l'état gazeux.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La sublimation est bien le passage direct de l'état solide à l'état gazeux, sans passer par l'état liquide.","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}]