Bài 5: Tốc độ và vận tốc - Bài tập số 1 (dễ)

Home Lớp 10 Vật lý 10 - Sách kết nối tri thức Bài 5: Tốc độ và vận tốcBài tập cơ bản

{"common":{"save":0,"post_id":"6311","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5786","mon_id":"1158790","chapter_id":"1158795","post_id":"6311","question":"\u0110\u1ec3 xác \u0111\u1ecbnh \u0111\u1ed9 nhanh hay ch\u1eadm c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng gi\u1eefa 2 v\u1eadt, ng\u01b0\u1eddi ta th\u01b0\u1eddng so sánh:<\/p>","options":["A. quãng \u0111\u01b0\u1eddng \u0111i \u0111\u01b0\u1ee3c trong cùng m\u1ed9t kho\u1ea3ng th\u1eddi gian c\u1ee7a 2 v\u1eadt ","B. th\u1eddi gian \u0111\u1ec3 \u0111i cùng m\u1ed9t quãng \u0111\u01b0\u1eddng c\u1ee7a 2 v\u1eadt ","C. t\u1ed1c \u0111\u1ed9 trung bình c\u1ee7a 2 v\u1eadt ","D. t\u1ea5t c\u1ea3 các \u0111áp án trên \u0111\u1ec1u \u0111úng."],"correct":"4","level":"1","hint":"\u0110\u1ec3 xác \u0111\u1ecbnh \u0111\u1ed9 nhanh hay ch\u1eadm c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng gi\u1eefa 2 v\u1eadt, ng\u01b0\u1eddi ta th\u01b0\u1eddng so sánh: + Quãng \u0111\u01b0\u1eddng \u0111i \u0111\u01b0\u1ee3c trong cùng m\u1ed9t kho\u1ea3ng th\u1eddi gian c\u1ee7a 2 v\u1eadt + Th\u1eddi gian \u0111\u1ec3 \u0111i cùng m\u1ed9t quãng \u0111\u01b0\u1eddng c\u1ee7a 2 v\u1eadt + T\u1ed1c \u0111\u1ed9 trung bình c\u1ee7a 2 v\u1eadt.<\/p>","answer":"Ch\u1ecdn D. \u0110\u1ec3 xác \u0111\u1ecbnh \u0111\u1ed9 nhanh hay ch\u1eadm c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng gi\u1eefa 2 v\u1eadt, ng\u01b0\u1eddi ta th\u01b0\u1eddng so sánh: + Quãng \u0111\u01b0\u1eddng \u0111i \u0111\u01b0\u1ee3c trong cùng m\u1ed9t kho\u1ea3ng th\u1eddi gian c\u1ee7a 2 v\u1eadt + Th\u1eddi gian \u0111\u1ec3 \u0111i cùng m\u1ed9t quãng \u0111\u01b0\u1eddng c\u1ee7a 2 v\u1eadt + T\u1ed1c \u0111\u1ed9 trung bình c\u1ee7a 2 v\u1eadt.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-10-16 15:13:25","option_type":"txt","len":3},{"id":"5787","mon_id":"1158790","chapter_id":"1158795","post_id":"6311","question":"T\u1ed1c \u0111\u1ed9 trung bình c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng là gì?<\/p>","options":["A. là \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng cho s\u1ef1 nhanh hay ch\u1eadm c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng, \u0111\u01b0\u1ee3c xác \u0111\u1ecbnh b\u1eb1ng th\u01b0\u01a1ng s\u1ed1 gi\u1eefa quãng \u0111\u01b0\u1eddng \u0111i \u0111\u01b0\u1ee3c s và th\u1eddi gian \u0111i \u0111\u01b0\u1ee3c t","B. là \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng cho s\u1ef1 nhanh hay ch\u1eadm c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng, \u0111\u01b0\u1ee3c xác \u0111\u1ecbnh b\u1eb1ng tích gi\u1eefa quãng \u0111\u01b0\u1eddng \u0111i \u0111\u01b0\u1ee3c s và th\u1eddi gian \u0111i \u0111\u01b0\u1ee3c t","C. là \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng cho s\u1ef1 nhanh hay ch\u1eadm c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng, \u0111\u01b0\u1ee3c xác \u0111\u1ecbnh b\u1eb1ng th\u01b0\u01a1ng s\u1ed1 gi\u1eefa \u0111\u1ed9 d\u1ecbch chuy\u1ec3n d và th\u1eddi gian \u0111i \u0111\u01b0\u1ee3c t","D. là \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng cho s\u1ef1 nhanh hay ch\u1eadm c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng, \u0111\u01b0\u1ee3c xác \u0111\u1ecbnh b\u1eb1ng tích gi\u1eefa \u0111\u1ed9 d\u1ecbch chuy\u1ec3n d và th\u1eddi gian \u0111i \u0111\u01b0\u1ee3c t"],"correct":"1","level":"1","hint":"T\u1ed1c \u0111\u1ed9 trung bình c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng là \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng cho s\u1ef1 nhanh hay ch\u1eadm c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng, \u0111\u01b0\u1ee3c xác \u0111\u1ecbnh b\u1eb1ng th\u01b0\u01a1ng s\u1ed1 gi\u1eefa quãng \u0111\u01b0\u1eddng \u0111i \u0111\u01b0\u1ee3c s và th\u1eddi gian \u0111i \u0111\u01b0\u1ee3c t.  <\/p>","answer":"Ch\u1ecdn A. T\u1ed1c \u0111\u1ed9 trung bình c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng là \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng cho s\u1ef1 nhanh hay ch\u1eadm c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng, \u0111\u01b0\u1ee3c xác \u0111\u1ecbnh b\u1eb1ng th\u01b0\u01a1ng s\u1ed1 gi\u1eefa quãng \u0111\u01b0\u1eddng \u0111i \u0111\u01b0\u1ee3c s và th\u1eddi gian \u0111i \u0111\u01b0\u1ee3c t.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-10-16 15:14:19","option_type":"txt","len":3},{"id":"5788","mon_id":"1158790","chapter_id":"1158795","post_id":"6311","question":"\u0110i\u1ec1n t\u1eeb thích h\u1ee3p vào ch\u1ed7 tr\u1ed1ng: “… là \u0111\u1ea1i l\u01b0\u1ee3ng vect\u01a1, \u0111\u1eb7c tr\u01b0ng cho s\u1ef1… c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng theo m\u1ed9t h\u01b0\u1edbng xác \u0111\u1ecbnh, \u0111\u01b0\u1ee3c xác \u0111\u1ecbnh b\u1eb1ng th\u01b0\u01a1ng s\u1ed1 gi\u1eefa… và…”.<\/p>","options":["A. V\u1eadn t\u1ed1c trung bình - nhanh hay ch\u1eadm - \u0111\u1ed9 d\u1ecbch chuy\u1ec3n - th\u1eddi gian d\u1ecbch chuy\u1ec3n","B. T\u1ed1c \u0111\u1ed9 trung bình - nhanh hay ch\u1eadm - quãng \u0111\u01b0\u1eddng \u0111i \u0111\u01b0\u1ee3c - th\u1eddi gian \u0111i \u0111\u01b0\u1ee3c","C. V\u1eadn t\u1ed1c trung bình - nhanh hay ch\u1eadm - quãng \u0111\u01b0\u1eddng \u0111i \u0111\u01b0\u1ee3c - th\u1eddi gian d\u1ecbch chuy\u1ec3n","D. T\u1ed1c \u0111\u1ed9 trung bình - nhanh hay ch\u1eadm - \u0111\u1ed9 d\u1ecbch chuy\u1ec3n - th\u1eddi gian \u0111i \u0111\u01b0\u1ee3c"],"correct":"1","level":"1","hint":"V\u1eadn t\u1ed1c trung bình là \u0111\u1ea1i l\u01b0\u1ee3ng vect\u01a1, \u0111\u1eb7c tr\u01b0ng cho s\u1ef1 nhanh hay ch\u1eadm c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng theo m\u1ed9t h\u01b0\u1edbng xác \u0111\u1ecbnh, \u0111\u01b0\u1ee3c xác \u0111\u1ecbnh b\u1eb1ng th\u01b0\u01a1ng s\u1ed1 gi\u1eefa \u0111\u1ed9 d\u1ecbch chuy\u1ec3n và th\u1eddi gian d\u1ecbch chuy\u1ec3n.<\/p>","answer":"Ch\u1ecdn A. V\u1eadn t\u1ed1c trung bình<\/u> là \u0111\u1ea1i l\u01b0\u1ee3ng vect\u01a1, \u0111\u1eb7c tr\u01b0ng cho s\u1ef1 nhanh hay ch\u1eadm<\/u> c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng theo m\u1ed9t h\u01b0\u1edbng xác \u0111\u1ecbnh, \u0111\u01b0\u1ee3c xác \u0111\u1ecbnh b\u1eb1ng th\u01b0\u01a1ng s\u1ed1 gi\u1eefa \u0111\u1ed9 d\u1ecbch chuy\u1ec3n<\/u> và th\u1eddi gian d\u1ecbch chuy\u1ec3n<\/u>.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-10-16 15:17:00","option_type":"txt","len":3}]}