Quiz — Déplace_antidepl2015.pdf

Question 1 sur 10 20:00

[{"id":15289,"question":"Parmi ces transformations, laquelle est un antidéplacement ?","option_a":"Translation","option_b":"Rotation de 90°","option_c":"Symétrie centrale","option_d":"Symétrie axiale","option_e":"","option_f":"","bonne_reponse":"d","explication":"La symétrie axiale est un antidéplacement car elle inverse l'orientation tout en conservant les distances.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"d\", \"options\": {\"a\": \"Translation\", \"b\": \"Rotation de 90°\", \"c\": \"Symétrie centrale\",","_debug_options_count":4},{"id":15290,"question":"Un antidéplacement conserve-t-il les angles orientés ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Faux. Un antidéplacement inverse les angles orientés, contrairement à un déplacement qui les conserve.","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":15291,"question":"Quelle est la composée d'un antidéplacement et d'un déplacement ?","option_a":"Un déplacement","option_b":"Un antidéplacement","option_c":"Une homothétie","option_d":"Une projection","option_e":"","option_f":"","bonne_reponse":"b","explication":"La composée d'un antidéplacement et d'un déplacement est toujours un antidéplacement.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Un déplacement\", \"b\": \"Un antidéplacement\", \"c\": \"Une homothét","_debug_options_count":4},{"id":15292,"question":"La symétrie glissée est-elle un antidéplacement ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai. La symétrie glissée est une isométrie qui inverse l'orientation, donc c'est un antidéplacement.","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":15293,"question":"Quel est l'effet d'un antidéplacement sur un vecteur ?","option_a":"Conservation de la norme et de l'orientation","option_b":"Conservation de la norme mais inversion de l'orientation","option_c":"Inversion de la norme et de l'orientation","option_d":"Conservation de la norme seulement","option_e":"","option_f":"","bonne_reponse":"b","explication":"Un antidéplacement conserve la norme des vecteurs mais inverse leur orientation.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Conservation de la norme et de l'orientation\", \"b\": \"Conservation","_debug_options_count":4},{"id":15294,"question":"Parmi ces propriétés, laquelle n'est PAS caractéristique d'un antidéplacement ?","option_a":"Conservation des distances","option_b":"Inversion de l'orientation","option_c":"Conservation des angles non orientés","option_d":"Conservation des angles orientés","option_e":"","option_f":"","bonne_reponse":"d","explication":"Un antidéplacement ne conserve pas les angles orientés, contrairement aux déplacements.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"d\", \"options\": {\"a\": \"Conservation des distances\", \"b\": \"Inversion de l'orientation\", \"","_debug_options_count":4},{"id":15295,"question":"La rotation d'angle π est-elle un antidéplacement ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai. Une rotation d'angle π (180°) est un antidéplacement car elle inverse l'orientation.","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":15296,"question":"Quel est l'antidéplacement le plus simple à caractériser ?","option_a":"Translation","option_b":"Symétrie centrale","option_c":"Rotation","option_d":"Symétrie axiale","option_e":"","option_f":"","bonne_reponse":"b","explication":"La symétrie centrale est l'antidéplacement le plus simple à caractériser : c'est une isométrie qui inverse l'orientation.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Translation\", \"b\": \"Symétrie centrale\", \"c\": \"Rotation\", \"d\": \"S","_debug_options_count":4},{"id":15297,"question":"Un antidéplacement peut-il être une isométrie directe ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Faux. Par définition, un antidéplacement est une isométrie indirecte qui inverse l'orientation.","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":15298,"question":"Quelle transformation est la composée de deux antidéplacements ?","option_a":"Un déplacement","option_b":"Un antidéplacement","option_c":"Une homothétie","option_d":"Une projection","option_e":"","option_f":"","bonne_reponse":"a","explication":"La composée de deux antidéplacements est toujours un déplacement, car l'inversion de l'orientation s'annule.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Un déplacement\", \"b\": \"Un antidéplacement\", \"c\": \"Une homothét","_debug_options_count":4}]