{"segment":[{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"L\u1ef1c n\u00e0o d\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u1ef1c \u0111\u00e0n h\u1ed3i?","select":["A. Tr\u1ecdng l\u1ef1c c\u1ee7a m\u1ed9t qu\u1ea3 n\u1eb7ng","B. L\u1ef1c \u0111\u1ea9y c\u1ee7a l\u00f2 xo d\u01b0\u1edbi y\u00ean xe m\u00e1y","C. L\u1ef1c h\u00fat c\u1ee7a m\u1ed9t nam ch\u00e2m t\u00e1c d\u1ee5ng l\u00ean m\u1ed9t mi\u1ebfng s\u1eaft","D. L\u1ef1c k\u1ebft d\u00ednh gi\u1eefa m\u1ed9t t\u1edd gi\u1ea5y d\u00e1n tr\u00ean b\u1ea3ng v\u1edbi m\u1eb7t b\u1ea3ng"],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2361},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":10,"ques":"Bi\u00ea\u0301n da\u0323ng cu\u0309a v\u00e2\u0323t na\u0300o d\u01b0\u01a1\u0301i d\u00e2y la\u0300 bi\u00ea\u0301n da\u0323ng \u0111a\u0300n h\u00f4\u0300i?","select":["A. Cu\u0323c \u0111\u00e2\u0301t b\u1ed3i","B. S\u01a1\u0323i d\u00e2y s\u1eaft","C. S\u01a1\u0323i d\u00e2y cao su","D. Qua\u0309 chu\u1ed1i chi\u0301n"],"hint":"","explain":"<span class='basic_left'>Bi\u00ea\u0301n da\u0323ng cu\u0309a s\u01a1\u0323i d\u00e2y cao su la\u0300 bi\u00ea\u0301n da\u0323ng \u0111a\u0300n h\u00f4\u0300i.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2362},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"M\u1ed9t xe \u0111\u1ea1p kh\u00f4ng c\u00f3 l\u00f2 xo nh\u00fan gi\u1ea3m x\u00f3c v\u00e0 1 xe \u0111\u1ea1p leo n\u00fai c\u00f3 l\u00f2 xo nh\u00fan gi\u1ea3m x\u00f3c, khi \u0111i qua \u0111o\u1ea1n \u0111\u01b0\u1eddng gh\u1eadp gh\u1ec1nh th\u00ec:","select":["A. L\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean ng\u01b0\u1eddi \u0111i xe leo n\u00fai l\u1edbn h\u01a1n l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean ng\u01b0\u1eddi \u0111i xe th\u01b0\u1eddng","B. L\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean ng\u01b0\u1eddi \u0111i xe leo n\u00fai nh\u1ecf h\u01a1n l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean ng\u01b0\u1eddi \u0111i xe th\u01b0\u1eddng","C. L\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean ng\u01b0\u1eddi \u0111i xe leo n\u00fai b\u1eb1ng l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean ng\u01b0\u1eddi \u0111i xe th\u01b0\u1eddng","D. Kh\u00f4ng c\u00f3 l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean ng\u01b0\u1eddi \u0111i xe leo n\u00fai v\u00e0 ng\u01b0\u1eddi \u0111i xe th\u01b0\u1eddng"],"hint":"","explain":"<span class='basic_left'>V\u00ec xe leo n\u00fai c\u00f3 gi\u1ea3m x\u00f3c n\u00ean \u00eam h\u01a1n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2363},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":10,"ques":"M\u1ed9t s\u00fang \u0111\u1ed3 ch\u01a1i b\u1eafn \u0111\u1ea1n b\u1eb1ng l\u00f2 xo, mu\u1ed1n b\u1eafn \u0111\u1ea1n \u0111i xa h\u01a1n m\u1ee9c hi\u1ec7n c\u00f3, ta ph\u1ea3i:","select":["A. C\u1eaft ng\u1eafn l\u00f2 xo hi\u1ec7n c\u00f3 ","B. Thay \u0111\u1ea1n c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng nh\u1eb9 h\u01a1n","C. Thay d\u1ea1n c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng n\u1eb7ng h\u01a1n","D. Thay s\u00fang c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng nh\u1eb9 h\u01a1n"],"hint":"","explain":"<span class='basic_left'>C\u1eaft ng\u1eafn l\u00f2 xo l\u00e0m \u0111\u1ed9 \u0111\u00e0n h\u1ed3i t\u0103ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":2364},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"Trong nh\u1eefng v\u1eadt sau v\u1eadt n\u00e0o c\u00f3 th\u1ec3 t\u1ea1o th\u00e0nh nh\u1eefng v\u1eadt \u0111\u00e0n h\u1ed3i","select":["A. S\u1ee3i d\u00e2y th\u00e9p, h\u00f2n s\u1ecfi","B. S\u1ee3i d\u00e2y th\u00e9p, qu\u1ea3 b\u00f3ng cao su","C. S\u1ee3i d\u00e2y th\u00e9p,tr\u00e1i bida","D. Kh\u00f4ng c\u00f3 v\u1eadt n\u00e0o c\u1ea3"],"hint":"","explain":"<span class='basic_left'>S\u1ee3i d\u00e2y th\u00e9p t\u1ea1o th\u00e0nh l\u00f2 xo, c\u00f2n qu\u1ea3 b\u00f3ng cao su \u0111\u00e3 c\u00f3 t\u00ednh \u0111\u00e0n h\u1ed3i.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2365},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":10,"ques":"L\u1ef1c \u0111\u00e0n h\u1ed3i c\u1ee7a m\u1ed9t l\u00f2 xo ph\u1ee5 thu\u1ed9c v\u00e0o:","select":["A. Tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a v\u1eadt g\u1eafn v\u00e0o","B. Chi\u1ec1u d\u00e0i c\u1ee7a l\u00f2 xo","C. \u0110\u1ed9 bi\u1ebfn d\u1ea1ng c\u1ee7a l\u00f2 xo","D. L\u1ef1c t\u00e1c d\u1ee5ng v\u00e0o l\u00f2 xo"],"hint":"","explain":"<span class='basic_left'>L\u1ef1c \u0111\u00e0n h\u1ed3i c\u1ee7a m\u1ed9t l\u00f2 xo ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9 bi\u1ebfn d\u1ea1ng c\u1ee7a l\u00f2 xo.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2366},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":10,"ques":"M\u1ed9t v\u1eadt n\u1eb7ng treo v\u00e0o m\u1ed9t l\u00f2 xo, l\u00f2 xo d\u00e3n ra. Khi \u0111\u00f3 l\u1ef1c \u0111\u00e0n h\u1ed3i c\u1ee7a l\u00f2 xo:","select":["A. T\u00e1c d\u1ee5ng l\u00ean l\u00f2 xo.","B. Ch\u1ec9 t\u00e1c d\u1ee5ng l\u00ean gi\u00e1 treo.","C. C\u00f9ng t\u00e1c d\u1ee5ng l\u00ean gi\u00e1 v\u00e0 v\u1eadt.","D. Ch\u1ec9 t\u00e1c d\u1ee5ng l\u00ean v\u1eadt n\u1eb7ng."],"hint":"","explain":"<span class='basic_left'>Khi \u0111\u00f3 l\u1ef1c \u0111\u00e0n h\u1ed3i c\u1ee7a l\u00f2 xo c\u00f9ng t\u00e1c d\u1ee5ng l\u00ean gi\u00e1 v\u00e0 v\u1eadt.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2367},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":10,"ques":"L\u1ef1c \u0111\u00e0n h\u1ed3i c\u1ee7a l\u00f2 xo c\u00f3 xu h\u01b0\u1edbng:","select":["A. L\u00e0m l\u00f2 xo d\u00e3n ra","B. L\u00e0m l\u00f2 xo co l\u1ea1i","C. L\u00e0m l\u00f2 xo tr\u1edf v\u1ec1 tr\u1ea1ng th\u00e1i t\u1ef1 nhi\u00ean c\u1ee7a n\u00f3","D. L\u00e0m l\u00f2 xo b\u1ecb cong"],"hint":"","explain":"<span class='basic_left'>L\u1ef1c \u0111\u00e0n h\u1ed3i c\u1ee7a l\u00f2 xo c\u00f3 xu h\u01b0\u1edbng l\u00e0m l\u00f2 xo tr\u1edf v\u1ec1 tr\u1ea1ng th\u00e1i t\u1ef1 nhi\u00ean c\u1ee7a n\u00f3.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2368},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"Khi treo m\u1ed9t qu\u1ea3 n\u1eb7ng 1kg v\u00e0o m\u1ed9t l\u00f2 xo, l\u00e0m n\u00f3 gi\u00e3n ra 2cm. Khi k\u00e9o l\u00f2 xo gi\u00e3n ra m\u1ed9t \u0111o\u1ea1n 3cm th\u00ec l\u1ef1c t\u00e1c d\u1ee5ng c\u1ee7a ta l\u00e0:","select":["A. 10N","B. 15N","C. 20N","D. 30N"],"hint":"","explain":"<span class='basic_left'>V\u1eadt 1kg n\u1eb7ng 10N, l\u00e0m l\u00f2 xo d\u00e3n 2cm, v\u1eady \u0111\u1ec3 l\u00f2 xo d\u00e3n 3cm th\u00ec l\u1ef1c l\u00e0 15N.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2369},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":10,"ques":"Treo th\u0103\u0309ng \u0111\u01b0\u0301ng m\u00f4\u0323t lo\u0300 xo c\u00f3 \u0111\u1ed9 d\u00e0i l\u00e0 11cm; treo qua\u0309 c\u00e2n 200g thi\u0300 lo\u0300 xo co\u0301 \u0111\u00f4\u0323 da\u0300i la\u0300 11,5cm. Ho\u0309i n\u00ea\u0301u treo qua\u0309 c\u00e2n 1kg thi\u0300 lo\u0300 xo co\u0301 \u0111\u00f4\u0323 da\u0300i bao nhi\u00eau?","select":["A. 12cm","B. 12,5cm","C. 13cm","D. 13.5cm"],"hint":"","explain":"<span class='basic_left'>200g l\u00e0m l\u00f2 xo d\u00e3n 0,5cm. v\u1eady 1kg = 1000g s\u1ebd l\u00e0m l\u00f2 xo d\u00e3n 2,5cm, chi\u1ec1u d\u00e0i c\u1ee7a l\u00f2 xo l\u00e0 13,5cm.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2370}],"lesson":{"save":0,"level":2}}