Đồ thị dịch chuyển - thời gian

Home Lớp 10 Vật lý 10 - Sách kết nối tri thức Bài 7: Đồ thị dịch chuyển - thời gianBài tập trung bình

{"common":{"save":0,"post_id":"6315","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5766","mon_id":"1158790","chapter_id":"1158795","post_id":"6315","question":"H\u1ec7 s\u1ed1 góc (\u0111\u1ed9 d\u1ed1c) trong \u0111\u1ed3 th\u1ecb d – t cho bi\u1ebft \u0111i\u1ec1u gì?<\/p><svg height=\"272\" width=\"320\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"274\" id=\"canvas_background\" width=\"322\" 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><image height=\"272\" id=\"svg_1\" stroke-dasharray=\"5,5\" width=\"320\" x=\"1\" 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y=\"2\"><\/image> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"551.5125\" x2=\"556.5125\" y1=\"161.5\" y2=\"158.5\"><\/line> <\/g> <\/svg><\/span><\/p>","options":[" A. \u0111\u1ed9 d\u1ecbch chuy\u1ec3n c\u1ee7a v\u1eadt trong m\u1ed9t kho\u1ea3ng th\u1eddi gian","B. quãng \u0111\u01b0\u1eddng v\u1eadt \u0111i \u0111\u01b0\u1ee3c trong m\u1ed9t kho\u1ea3ng th\u1eddi gian","C. t\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u1eadt trong m\u1ed9t kho\u1ea3ng th\u1eddi gian","D. \u0111\u1ed9 l\u1edbn v\u1eadn t\u1ed1c chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u1eadt trong m\u1ed9t kho\u1ea3ng th\u1eddi gian"],"correct":"4","level":"2","hint":"H\u1ec7 s\u1ed1 góc (\u0111\u1ed9 d\u1ed1c) trong \u0111\u1ed3 th\u1ecb d – t là tanα, cho bi\u1ebft \u0111\u1ed9 l\u1edbn v\u1eadn t\u1ed1c chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u1eadt trong m\u1ed9t kho\u1ea3ng th\u1eddi gian.<\/p>","answer":"Ch\u1ecdn D. H\u1ec7 s\u1ed1 góc (\u0111\u1ed9 d\u1ed1c) trong \u0111\u1ed3 th\u1ecb d – t là tanα, c\u0169ng chính là \u0111\u1ed9 l\u1edbn v\u1eadn t\u1ed1c chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u1eadt:  $tan(\\alpha)=\\frac{\\triangle d}{\\triangle t}=\\nu$<\/span><\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-10-13 09:44:46","option_type":"txt","len":3},{"id":"5767","mon_id":"1158790","chapter_id":"1158795","post_id":"6315","question":"\u0110\u1ed3 th\u1ecb c\u1ee7a \u0111\u1ed9 d\u1ecbch chuy\u1ec3n theo th\u1eddi gian c\u1ee7a m\u1ed9t v\u1eadt chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng \u0111\u1ec1u không \u0111\u1ed5i chi\u1ec1u có d\u1ea1ng gì?<\/p>","options":["A. \u0111\u01b0\u1eddng th\u1eb3ng","B. parabol","C. elip","D. \u0111\u01b0\u1eddng tròn"],"correct":"1","level":"2","hint":"Khi v\u1eadt chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng \u0111\u1ec1u không \u0111\u1ed5i chi\u1ec1u thì v\u1eadn t\u1ed1c c\u1ee7a v\u1eadt là không \u0111\u1ed5i.<\/p>","answer":"Ch\u1ecdn A. Khi v\u1eadt chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng \u0111\u1ec1u không \u0111\u1ed5i chi\u1ec1u thì v\u1eadn t\u1ed1c c\u1ee7a v\u1eadt là không \u0111\u1ed5i, nên \u0111\u1ed3 th\u1ecb c\u1ee7a \u0111\u1ed9 d\u1ecbch chuy\u1ec3n theo th\u1eddi gian là m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng xiên góc.  <svg height=\"244\" width=\"255\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"246\" id=\"canvas_background\" width=\"257\" 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><image height=\"244\" id=\"svg_1\" width=\"255\" x=\"-0.5\" 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Chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng \u0111\u1ec1u là chuy\u1ec3n \u0111\u1ed9ng có qu\u1ef9 \u0111\u1ea1o là \u0111\u01b0\u1eddng th\u1eb3ng, v\u1eadn t\u1ed1c không \u0111\u1ed5i theo th\u1eddi gian nên \u0111\u1ed3 th\u1ecb v – t s\u1ebd có d\u1ea1ng \u0111\u01b0\u1eddng th\u1eb3ng song song tr\u1ee5c Ot.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-10-13 09:49:44","option_type":"txt","len":3}]}