Đồ thị quãng đường - thời gian

Home Lớp 7 Khoa học tự nhiên 7 - Sách kết nối tri thức Bài 10: Đồ thị quãng đường - thời gianBài tập nâng cao

{"common":{"save":0,"post_id":"6002","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9483","post_id":"6002","mon_id":"1158739","chapter_id":"1158740","question":"Minh và Nam \u0111i xe \u0111\u1ea1p trên m\u1ed9t \u0111o\u1ea1n \u0111\u01b0\u1eddng th\u1eb3ng. Trên hình \u0111o\u1ea1n th\u1eb3ng OM là \u0111\u1ed3 th\u1ecb quãng \u0111\u01b0\u1eddng - th\u1eddi gian c\u1ee7a Minh, \u0111o\u1ea1n th\u1eb3ng ON là \u0111\u1ed3 th\u1ecb quãng \u0111\u01b0\u1eddng - th\u1eddi gian c\u1ee7a Nam. Mô t\u1ea3 nào sau \u0111ây không<\/strong> \u0111úng? <svg height=\"199\" width=\"269\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"201\" id=\"canvas_background\" width=\"271\" 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=\"217\" id=\"svg_1\" stroke=\"null\" width=\"275.99999\" x=\"-6\" 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y=\"-9\"><\/image> <\/g> <\/svg><\/span><\/p>","options":["A. Minh va\u0300 Nam xuâ\u0301t pha\u0301t cu\u0300ng mô\u0323t lu\u0301c.","B. Tô\u0301c \u0111ô\u0323 cu\u0309a Minh l\u01a1\u0301n h\u01a1n tô\u0301c \u0111ô\u0323 cu\u0309a Nam.","C. Qua\u0303ng \u0111\u01b0\u01a1\u0300ng Minh \u0111i ng\u0103\u0301n h\u01a1n qua\u0303ng \u0111\u01b0\u01a1\u0300ng Nam \u0111i.","D. Th\u01a1\u0300i gian \u0111a\u0323p xe cu\u0309a Nam nhiê\u0300u h\u01a1n th\u01a1\u0300i gian \u0111a\u0323p xe cu\u0309a Minh. \nG\u01a1\u0323i y\u0301: "],"correct":"3","level":"3","hint":"- T\u01b0\u0300 to\u0323a \u0111ô\u0323 s trên tru\u0323c Os do\u0301ng t\u01b0\u01a1ng \u01b0\u0301ng xuô\u0301ng tru\u0323c Ot \u0111ê\u0309 lâ\u0301y ca\u0301c gia\u0301 tri\u0323 t t\u01b0\u01a1ng \u01b0\u0301ng v\u01a1\u0301i hai ba\u0323n. - S\u01b0\u0309 du\u0323ng công th\u01b0\u0301c $v=\\frac{s}{t} $<\/span> .<\/p>","answer":"A \u0111u\u0301ng vi\u0300 \u0111ô\u0300 thi\u0323 cu\u0309a hai ba\u0323n \u0111ê\u0300u xuâ\u0301t pha\u0301t t\u01b0\u0300 \u0111iê\u0309m O lu\u0301c t = 0 (h). B \u0111u\u0301ng, D \u0111u\u0301ng, C sai <\/span>vi\u0300 hai ba\u0323n \u0111i cu\u0300ng qua\u0303ng \u0111\u01b0\u01a1\u0300ng v\u01a1\u0301i th\u01a1\u0300i gian Nam \u0111i nhiê\u0300u h\u01a1n Minh \u0111i nên tô\u0301c \u0111ô\u0323 cu\u0309a Minh l\u01a1\u0301n h\u01a1n tô\u0301c \u0111ô\u0323 cu\u0309a Nam. <\/span>\u0110a\u0301p a\u0301n c\u1ea7n ch\u1ecdn là: C. Qua\u0303ng \u0111\u01b0\u01a1\u0300ng Minh \u0111i ng\u0103\u0301n h\u01a1n qua\u0303ng \u0111\u01b0\u01a1\u0300ng Nam \u0111i.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-08-27 01:12:35","option_type":"txt","len":3},{"id":"9484","post_id":"6002","mon_id":"1158739","chapter_id":"1158740","question":"M\u1ed9t v\u1eadt chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng \u0111\u1ec1u có \u0111\u1ed3 th\u1ecb nh\u01b0 trên hình v\u1ebd. K\u1ebft lu\u1eadn nào d\u01b0\u1edbi \u0111ây là chính xác? <svg height=\"186\" width=\"235\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"188\" id=\"canvas_background\" width=\"237\" 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=\"201.99999\" id=\"svg_1\" stroke=\"null\" width=\"249\" x=\"-5\" xlink:href=\"data:image\/png;base64,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\" y=\"-5.5\"><\/image> <\/g> <\/svg><\/span><\/p>","options":["A. Vâ\u0323t chuyê\u0309n \u0111ô\u0323ng t\u01b0\u0300 \u0111iê\u0309m ca\u0301ch mô\u0301c 4,5 km.","B. Vâ\u0323t chuyê\u0309n \u0111ô\u0323ng t\u01b0\u0300 mô\u0301c O.","C. Vâ\u0323t \u0111\u01b0\u0301ng yên t\u01b0\u0300 \u0111iê\u0309m ca\u0301ch mô\u0301c 4,5 km.","D. Vâ\u0323t chuyê\u0309n \u0111ô\u0323ng t\u01b0\u0300 vi\u0323 tri\u0301 ca\u0301ch mô\u0301c 4,5 m."],"correct":"3","level":"3","hint":"- \u0110ô\u0300 thi\u0323 s – t co\u0301 da\u0323ng \u0111\u01b0\u01a1\u0300ng th\u0103\u0309ng xiên thê\u0309 hiê\u0323n vâ\u0323t chuyê\u0309n \u0111ô\u0323ng v\u01a1\u0301i tô\u0301c \u0111ô\u0323 không \u0111ô\u0309i. - \u0110ô\u0300 thi\u0323 s – t co\u0301 da\u0323ng \u0111\u01b0\u01a1\u0300ng th\u0103\u0309ng song song v\u01a1\u0301i tru\u0323c Ot thê\u0309 hiê\u0323n vâ\u0323t \u0111\u01b0\u0301ng yên.<\/p>","answer":"Vâ\u0323t \u0111\u01b0\u0301ng yên t\u01b0\u0300 \u0111iê\u0309m ca\u0301ch mô\u0301c 4,5 km. \u0110a\u0301p a\u0301n \u0111u\u0301ng: C. Vâ\u0323t \u0111\u01b0\u0301ng yên t\u01b0\u0300 \u0111iê\u0309m ca\u0301ch mô\u0301c 4,5 km.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-08-27 01:17:35","option_type":"txt","len":3},{"id":"9485","post_id":"6002","mon_id":"1158739","chapter_id":"1158740","question":"\u0110ô\u0300 thi\u0323 qua\u0303ng \u0111\u01b0\u01a1\u0300ng – th\u01a1\u0300i gian cu\u0309a mô\u0323t xe ô tô \u0111\u01b0\u01a1\u0323c biê\u0309u diê\u0303n nh\u01b0 sau: Trong 0,2 gi\u01a1\u0300 \u0111â\u0300u, xe ô tô trên \u0111i \u0111\u01b0\u01a1\u0323c bao xa?  <svg height=\"179\" width=\"230\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"181\" id=\"canvas_background\" width=\"232\" 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=\"195\" id=\"svg_1\" stroke=\"null\" width=\"245.00001\" x=\"-9.5\" 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y=\"-8\"><\/image> <\/g> <\/svg><\/span><\/p>","options":["A. 10 km.","B. 3 km.","C. 6 km.","D. 12 km."],"correct":"3","level":"3","hint":"T\u01b0\u0300 \u0111ô\u0300 thi\u0323 xa\u0301c \u0111i\u0323nh t = 0,2 h va\u0300 do\u0301ng lên tru\u0323c Os, xa\u0301c \u0111i\u0323nh s t\u01b0\u01a1ng \u01b0\u0301ng.<\/p>","answer":"Ta\u0323i t = 0,2 h ta \u0111\u01b0\u01a1\u0323c s = 6 km. Vâ\u0323y trong 0,2 h \u0111â\u0300u, xe \u0111i \u0111\u01b0\u01a1\u0323c 6 km. \u0110a\u0301p a\u0301n \u0111u\u0301ng: C. 6 km.<\/strong><\/span>  <\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-08-27 01:21:39","option_type":"txt","len":0}]}