{"common":{"save":0,"post_id":"6285","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5636","mon_id":"1158790","chapter_id":"1158791","post_id":"6285","question":"<p>Có bao nhiêu phép \u0111o giá tr\u1ecb c\u1ee7a m\u1ed9t \u0111\u1ea1i l\u01b0\u1ee3ng?<\/p>","options":["A. 1","B. 2","C. 3 ","D. 4"],"correct":"2","level":"1","hint":"<p>Có 2 phép \u0111o, \u0111ó là phép \u0111o tr\u1ef1c ti\u1ebfp và phép \u0111o gián ti\u1ebfp.<\/p>","answer":"<p><span style=\"color:#27ae60;\"><strong>Ch\u1ecdn B.<br \/>Có 2 phép \u0111o, \u0111ó là phép \u0111o tr\u1ef1c ti\u1ebfp và phép \u0111o gián ti\u1ebfp.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-09-26 00:30:39","option_type":"txt","len":0},{"id":"5637","mon_id":"1158790","chapter_id":"1158791","post_id":"6285","question":"<p>\u0110\u1ea1i l\u01b0\u1ee3ng nào d\u01b0\u1edbi \u0111ây có th\u1ec3 \u0111o \u0111\u01b0\u1ee3c qua phép \u0111o tr\u1ef1c ti\u1ebfp và phép \u0111o gián ti\u1ebfp?<\/p>","options":["A. quãng \u0111\u01b0\u1eddng","B. th\u1eddi gian","C. l\u1ef1c","D. A, B, C \u0111\u1ec1u \u0111úng"],"correct":"4","level":"1","hint":"<p>Phép \u0111o tr\u1ef1c ti\u1ebfp là phép \u0111o m\u1ed9t \u0111\u1ea1i l\u01b0\u1ee3ng nào \u0111ó b\u1eb1ng d\u1ee5ng c\u1ee5 \u0111o, k\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c \u0111\u1ecdc tr\u1ef1c ti\u1ebfp trên d\u1ee5ng c\u1ee5 \u0111o. <br \/>Phép \u0111o gián ti\u1ebfp là phép \u0111o m\u1ed9t \u0111\u1ea1i l\u01b0\u1ee3ng nào \u0111ó thông qua công th\u1ee9c liên h\u1ec7 v\u1edbi các \u0111\u1ea1i l\u01b0\u1ee3ng có th\u1ec3 \u0111o tr\u1ef1c ti\u1ebfp.<\/p>","answer":"<p><span style=\"color:#27ae60;\"><strong>Ch\u1ecdn D.<br \/>C\u1ea3 quãng \u0111\u01b0\u1eddng, th\u1eddi gian, l\u1ef1c \u0111\u1ec1u có th\u1ec3 \u0111o \u0111\u01b0\u1ee3c qua phép \u0111o tr\u1ef1c ti\u1ebfp và phép \u0111o gián ti\u1ebfp.<br \/>Phép \u0111o tr\u1ef1c ti\u1ebfp: quãng \u0111\u01b0\u1eddng có th\u1ec3 \u0111o b\u1eb1ng th\u01b0\u1edbc, th\u1eddi gian có th\u1ec3 \u0111o b\u1eb1ng \u0111\u1ed3ng h\u1ed3, l\u1ef1c có th\u1ec3 \u0111o b\u1eb1ng l\u1ef1c k\u1ebf.<br \/>Phép \u0111o gián ti\u1ebfp c\u1ee7a các \u0111\u1ea1i l\u01b0\u1ee3ng trên \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n thông qua các phép tính liên quan \u0111\u1ebfn các \u0111\u1ea1i l\u01b0\u1ee3ng \u0111ã bi\u1ebft khác.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-09-26 00:31:52","option_type":"txt","len":2},{"id":"5638","mon_id":"1158790","chapter_id":"1158791","post_id":"6285","question":"<p>\u0110\u1ea1i l\u01b0\u1ee3ng nào d\u01b0\u1edbi \u0111ây ch\u1ec9 có th\u1ec3 \u0111o \u0111\u01b0\u1ee3c b\u1eb1ng phép \u0111o gián ti\u1ebfp mà không th\u1ec3 \u0111o \u0111\u01b0\u1ee3c b\u1eb1ng phép \u0111o tr\u1ef1c ti\u1ebfp?<\/p>","options":["A. quãng \u0111\u01b0\u1eddng","B. th\u1eddi gian","C. t\u1ed1c \u0111\u1ed9 ","D. gia t\u1ed1c"],"correct":"4","level":"1","hint":"<p>\u0110\u1ec3 \u0111o quãng \u0111\u01b0\u1eddng thì có th\u1ec3 s\u1eed d\u1ee5ng th\u01b0\u1edbc, \u0111o th\u1eddi gian thì có th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3, \u0111o t\u1ed1c \u0111\u1ed9 thì s\u1eed d\u1ee5ng t\u1ed1c k\u1ebf, nh\u01b0ng không có d\u1ee5ng c\u1ee5 \u0111\u1ec3 \u0111o tr\u1ef1c ti\u1ebfp gia t\u1ed1c.<\/p>","answer":"<p><span style=\"color:#27ae60;\"><strong>Ch\u1ecdn D.<br \/>Quãng \u0111\u01b0\u1eddng có th\u1ec3 \u0111o b\u1eb1ng th\u01b0\u1edbc, th\u1eddi gian có th\u1ec3 \u0111o b\u1eb1ng \u0111\u1ed3ng h\u1ed3, t\u1ed1c \u0111\u1ed9 có th\u1ec3 \u0111o b\u1eb1ng t\u1ed1c k\u1ebf. Ba \u0111\u1ea1i l\u01b0\u1ee3ng này có th\u1ec3 dùng d\u1ee5ng c\u1ee5 \u0111\u1ec3 \u0111o tr\u1ef1c ti\u1ebfp (phép \u0111o tr\u1ef1c ti\u1ebfp) ho\u1eb7c có th\u1ec3 s\u1eed d\u1ee5ng công th\u1ee9c <span class=\"math-tex\">$v=\\frac{s}{t}$<\/span> \u0111\u1ec3 xác \u0111\u1ecbnh m\u1ed9t \u0111\u1ea1i l\u01b0\u1ee3ng n\u1ebfu \u0111ã bi\u1ebft hai \u0111\u1ea1i l\u01b0\u1ee3ng còn l\u1ea1i (phép \u0111o gián ti\u1ebfp).<br \/>Còn gia t\u1ed1c là \u0111\u1ea1i l\u01b0\u1ee3ng không có d\u1ee5ng c\u1ee5 \u0111\u1ec3 \u0111o tr\u1ef1c ti\u1ebfp, ch\u1ec9 có th\u1ec3 xác \u0111\u1ecbnh \u0111\u01b0\u1ee3c gia t\u1ed1c thông qua các phép tính liên quan \u0111\u1ebfn các \u0111\u1ea1i l\u01b0\u1ee3ng \u0111ã bi\u1ebft khác.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-09-26 01:11:16","option_type":"txt","len":2}]}