Năng lượng ánh sáng. Tia sáng, vùng tối

Home Lớp 7 Khoa học tự nhiên 7 - Sách kết nối tri thức Bài 15: Năng lượng ánh sáng. Tia sáng, vùng tốiBài tập cơ bản

{"common":{"save":0,"post_id":"6331","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9893","post_id":"6331","mon_id":"1158739","chapter_id":"1158831","question":"N\u0103ng l\u01b0\u1ee3ng ánh sáng \u0111\u01b0\u1ee3c chuy\u1ec3n hóa thành nhi\u1ec7t n\u0103ng trong tr\u01b0\u1eddng h\u1ee3p nào sau \u0111ây?<\/p>","options":["A. Pin m\u1eb7t tr\u1eddi \u0111ang ho\u1ea1t \u0111\u1ed9ng.","B. Ph\u01a1i khô qu\u1ea7n áo.","C. Di\u1ec7p l\u1ee5c \u1edf lá cây.","D. T\u1ed5ng h\u1ee3p vitamin D \u1edf ng\u01b0\u1eddi."],"correct":"2","level":"1","hint":"N\u0103ng l\u01b0\u1ee3ng ánh sáng chuy\u1ec3n hóa thành nhi\u1ec7t n\u0103ng làm v\u1eadt nóng lên (có th\u1ec3 b\u1ed1c cháy) ho\u1eb7c làm bay h\u01a1i n\u01b0\u1edbc.<\/p>","answer":"A – n\u0103ng l\u01b0\u1ee3ng ánh sáng chuy\u1ec3n hóa thành \u0111i\u1ec7n n\u0103ng. C – n\u0103ng l\u01b0\u1ee3ng ánh sáng chuy\u1ec3n hóa thành hóa n\u0103ng. D - n\u0103ng l\u01b0\u1ee3ng ánh sáng chuy\u1ec3n hóa thành hóa n\u0103ng. \u0110áp án \u0111úng: B. Ph\u01a1i khô qu\u1ea7n áo.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-10-23 09:15:21","option_type":"txt","len":2},{"id":"9894","post_id":"6331","mon_id":"1158739","chapter_id":"1158831","question":"Ch\u1ecdn \u0111áp án \u0111úng \u0111i\u1ec1n vào ch\u1ed7 tr\u1ed1ng trong câu sau \u0111ây. Ánh sáng phát ra t\u1eeb ngu\u1ed3n sáng và truy\u1ec1n trong không gian thành nh\u1eefng … <\/p>","options":["A. chùm sáng.","B. tia sáng.","C. ánh sáng.","D. n\u0103ng l\u01b0\u1ee3ng."],"correct":"1","level":"1","hint":"Trong th\u1ef1c t\u1ebf, không th\u1ec3 nhìn th\u1ea5y m\u1ed9t tia sáng mà ch\u1ec9 nhìn th\u1ea5y chùm sáng g\u1ed3m nhi\u1ec1u tia sáng h\u1ee3p thành.<\/p>","answer":"Ánh sáng phát ra t\u1eeb ngu\u1ed3n sáng và truy\u1ec1n trong không gian thành nh\u1eefng chùm sáng.<\/u> \u0110áp án \u0111úng: A. chùm sáng.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-10-23 09:21:07","option_type":"txt","len":2},{"id":"9895","post_id":"6331","mon_id":"1158739","chapter_id":"1158831","question":"Trong các hình sau \u0111ây, hình nào bi\u1ec3u di\u1ec5n chùm sáng phân kì? <svg height=\"130\" width=\"180\"> <g><title><\/title><rect fill=\"#fff\" height=\"132\" id=\"canvas_background\" width=\"182\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_2\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><line fill=\"none\" id=\"svg_1\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"3\" x1=\"30.5125\" x2=\"155.5125\" y1=\"34.05\" y2=\"35.05\"><\/line> <line fill=\"none\" id=\"svg_6\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"3\" x1=\"28.5125\" x2=\"152.5125\" y1=\"83.05\" y2=\"83.05\"><\/line> <path d=\"m72.18347,34.51972l-5.56163,-7.5l10,7.5l-10,7.5l5.56163,-7.5z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"3\"><\/path> <line fill=\"none\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"3\" x1=\"72.5125\" x2=\"196.5125\" y1=\"152.05\" y2=\"152.05\"><\/line> <path d=\"m69.18347,82.51972l-5.56163,-7.5l10,7.5l-10,7.5l5.56163,-7.5z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_10\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"3\"><\/path> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_3\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7573996991488059,0,0,0.6941820261658982,19.071057189197635,39.37614231894198) \" x=\"51.39592\" xml:space=\"preserve\" y=\"117.15186\">Hình a)<\/text> <\/g> <\/svg><\/span><svg height=\"130\" width=\"180\"> <g><title><\/title><rect fill=\"#fff\" height=\"132\" id=\"canvas_background\" width=\"182\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><line fill=\"none\" id=\"svg_1\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"3\" x1=\"31.5125\" x2=\"143.5125\" y1=\"16.05\" y2=\"46.05\"><\/line> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"3\" x1=\"29.5125\" x2=\"147.5125\" y1=\"94.05\" y2=\"66.05\"><\/line> <path d=\"m87.76848,32.56474l-5.56163,-8l9.99999,8l-9.99999,8l5.56163,-8z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"3\" transform=\"rotate(14.88520622253418 87.20684814453128,32.564735412597635) \"><\/path> <path d=\"m86.76848,30.56474l-5.56163,-8.00001l9.99999,8.00001l-9.99999,7.99999l5.56163,-7.99999z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"3\" transform=\"rotate(14.88520622253418 86.20684814453125,30.564735412597653) \"><\/path> <path d=\"m91.76848,79.56474l-5.56163,-8.00001l9.99999,8.00001l-9.99999,7.99999l5.56163,-7.99999z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_7\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"3\" transform=\"rotate(-22.426807403564453 91.20684051513669,79.5647277832031) \"><\/path> <rect fill=\"none\" fill-opacity=\"null\" height=\"0\" id=\"svg_8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"3\" width=\"80\" x=\"77.51251\" y=\"109.05\"><\/rect> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_10\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.8239095211029053,0,0,0.6658881306648253,-25.652885891571714,41.93957257472539) \" x=\"101.5125\" xml:space=\"preserve\" y=\"115.05\">Hình b)<\/text> <\/g> <\/svg><\/span><svg height=\"130\" width=\"180\"> <g><title><\/title><rect fill=\"#fff\" height=\"132\" id=\"canvas_background\" width=\"182\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"3\" x1=\"11.5125\" x2=\"155.5125\" y1=\"47.05\" y2=\"7.05\"><\/line> <line fill=\"none\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"3\" x1=\"15.5125\" x2=\"158.5125\" y1=\"70.05\" y2=\"92.05\"><\/line> <path d=\"m105.41696,20.88472l-7.23013,-8l13,8l-13,8l7.23013,-8z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"3\" transform=\"rotate(-19.082975387573242 104.68682861328128,20.88472366333009) \"><\/path> <path d=\"m111.41696,83.88472l-7.23012,-8l13,8l-13,8l7.23012,-8z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_7\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"3\" transform=\"rotate(8.895964622497559 110.6868438720703,83.88471984863281) \"><\/path> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: text;\" text-anchor=\"start\" transform=\"matrix(0.7284244687127384,0,0,0.7207924098917573,17.843809179759667,34.66824862873663) \" x=\"63.5125\" xml:space=\"preserve\" y=\"114.05\">Hình c)<\/text> <\/g> <\/svg><\/span><svg height=\"130\" width=\"180\"> <g><title><\/title><rect fill=\"#fff\" height=\"132\" id=\"canvas_background\" width=\"182\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><line fill=\"none\" fill-opacity=\"null\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"3\" x1=\"19.5125\" x2=\"165.5125\" y1=\"82.05\" y2=\"49.05\"><\/line> <path d=\"m83.3408,67.45972l-6.67396,-6.5l12,6.5l-12,6.5l6.67396,-6.5z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"3\" transform=\"rotate(-15.698657035827637 82.66683959960938,67.45972442626949) \"><\/path> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.70596843957901,0,0,0.7070464491844177,23.673217354364624,34.71839976531328) \" x=\"56.59912\" xml:space=\"preserve\" y=\"115.87867\">Hình d)<\/text> <\/g> <\/svg><\/span><\/strong><\/p>","options":["A. Hình a.","B. Hình b. \n ","C. Hình c.","D. Hình d."],"correct":"3","level":"1","hint":"- Chùm sáng phân kì là chùm sáng loe r\u1ed9ng trên \u0111\u01b0\u1eddng truy\u1ec1n. - Chùm sáng song song là chùm sáng không giao nhau trên \u0111\u01b0\u1eddng truy\u1ec1n. - Chùm sáng h\u1ed9i t\u1ee5 là chùm sáng giao nhau trên \u0111\u01b0\u1eddng truy\u1ec1n.<\/p>","answer":"A – chùm sáng song song B – chùm sáng h\u1ed9i t\u1ee5 D – tia sáng \u0110áp án \u0111úng: C. Hình c.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-10-23 09:39:52","option_type":"txt","len":2}]}