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 cơ bản

{"common":{"save":0,"post_id":"6000","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9463","post_id":"6000","mon_id":"1158739","chapter_id":"1158740","question":"\u0110\u1ed3 th\u1ecb quãng \u0111\u01b0\u1eddng - th\u1eddi gian c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng có t\u1ed1c \u0111\u1ed9 không \u0111\u1ed5i có d\u1ea1ng :<\/p>","options":["A. \u0111\u01b0\u1eddng th\u1eb3ng.","B. \u0111\u01b0\u1eddng cong.","C. \u0111\u01b0\u1eddng tròn.","D. \u0111\u01b0\u1eddng g\u1ea5p khúc."],"correct":"1","level":"1","hint":"Vâ\u0323t chuyê\u0309n \u0111ô\u0323ng v\u01a1\u0301i tô\u0301c \u0111ô\u0323 không \u0111ô\u0309i t\u01b0\u0301c la\u0300 trong nh\u01b0\u0303ng khoa\u0309ng th\u01a1\u0300i gian b\u0103\u0300ng nhau vâ\u0323t \u0111i \u0111\u01b0\u01a1\u0323c qua\u0303ng \u0111\u01b0\u01a1\u0300ng nh\u01b0 nhau.<\/p>","answer":"\u0110\u1ed3 th\u1ecb quãng \u0111\u01b0\u1eddng - th\u1eddi gian c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng có t\u1ed1c \u0111\u1ed9 không \u0111\u1ed5i có d\u1ea1ng  \u0111\u01b0\u1eddng th\u1eb3ng. \u0110a\u0301p a\u0301n \u0111u\u0301ng: A. \u0111\u01b0\u1eddng th\u1eb3ng.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-08-26 13:54:33","option_type":"txt","len":2},{"id":"9464","post_id":"6000","mon_id":"1158739","chapter_id":"1158740","question":"\u0110\u1ed3 th\u1ecb quãng \u0111\u01b0\u1eddng – th\u1eddi gian co\u0301 da\u0323ng \u0111\u01b0\u1eddng th\u1eb3ng song song v\u1edbi tr\u1ee5c th\u1eddi gian thì mô ta\u0309:<\/p>","options":["A. v\u1eadt chuy\u1ec3n \u0111\u1ed9ng nhanh d\u1ea7n.","B. v\u1eadt chuy\u1ec3n \u0111\u1ed9ng ch\u1eadm d\u1ea7n.","C. v\u1eadt chuy\u1ec3n \u0111\u1ed9ng \u0111\u1ec1u.","D. vâ\u0323t \u0111ang \u0111\u01b0\u0301ng yên."],"correct":"4","level":"1","hint":"\u0110\u01b0\u01a1\u0300ng th\u0103\u0309ng song song v\u01a1\u0301i tru\u0323c th\u01a1\u0300i gian thi\u0300 c\u0103\u0301t tru\u0323c Os ta\u0323i mô\u0323t \u0111iê\u0309m không \u0111ô\u0309i.  <\/p>","answer":"\u0110\u1ed3 th\u1ecb quãng \u0111\u01b0\u1eddng – th\u1eddi gian co\u0301 da\u0323ng \u0111\u01b0\u1eddng th\u1eb3ng song song v\u1edbi tr\u1ee5c th\u1eddi gian thì mô ta\u0309 vâ\u0323t \u0111ang \u0111\u01b0\u0301ng yên. \u0110a\u0301p a\u0301n \u0111u\u0301ng: D. vâ\u0323t \u0111ang \u0111\u01b0\u0301ng yên<\/strong><\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-08-26 13:56:04","option_type":"txt","len":2},{"id":"9465","post_id":"6000","mon_id":"1158739","chapter_id":"1158740","question":"S\u01b0\u0309 du\u0323ng \u0111ô\u0300 thi\u0323 qua\u0303ng \u0111\u01b0\u01a1\u0300ng theo th\u01a1\u0300i gian \u0111ê\u0309:<\/p>","options":["A. mô ta\u0309 chuyê\u0309n \u0111ô\u0323ng cu\u0309a vâ\u0323t.","B. xa\u0301c \u0111i\u0323nh qua\u0303ng \u0111\u01b0\u01a1\u0300ng \u0111i \u0111\u01b0\u01a1\u0323c cu\u0309a vâ\u0323t.","C. th\u01a1\u0300i gian \u0111i va\u0300 vi\u0323 tri\u0301 cu\u0309a vâ\u0323t \u01a1\u0309 th\u01a1\u0300i \u0111iê\u0309m xa\u0301c \u0111i\u0323nh.","D. Ca\u0309 ba ph\u01b0\u01a1ng a\u0301n trên."],"correct":"4","level":"1","hint":"\u0110ô\u0300 thi\u0323 qua\u0303ng \u0111\u01b0\u01a1\u0300ng theo th\u01a1\u0300i gian thê\u0309 hiê\u0323n mô\u0301i liên hê\u0323 gi\u01b0\u0303a s va\u0300 t. H\u01a1n n\u01b0\u0303a, t\u01b0\u0300 \u0111o\u0301 co\u0301 thê\u0309 ti\u0301nh \u0111\u01b0\u01a1\u0323c $v=\\frac{s}{t}$<\/span>.<\/p>","answer":"S\u01b0\u0309 du\u0323ng \u0111ô\u0300 thi\u0323 qua\u0303ng \u0111\u01b0\u01a1\u0300ng theo th\u01a1\u0300i gian \u0111ê\u0309 mô ta\u0309 chuyê\u0309n \u0111ô\u0323ng, xa\u0301c \u0111i\u0323nh qua\u0303ng \u0111\u01b0\u01a1\u0300ng \u0111i \u0111\u01b0\u01a1\u0323c, th\u01a1\u0300i gian \u0111i va\u0300 vi\u0323 tri\u0301 cu\u0309a vâ\u0323t \u01a1\u0309 th\u01a1\u0300i \u0111iê\u0309m xa\u0301c \u0111i\u0323nh. \u0110a\u0301p a\u0301n \u0111u\u0301ng: D. Ca\u0309 ba ph\u01b0\u01a1ng a\u0301n trên.<\/span><\/strong><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-08-26 13:59:03","option_type":"txt","len":3}]}