{"common":{"save":0,"post_id":"8858","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8344","mon_id":"1158790","chapter_id":"1159899","post_id":"8858","question":"<p>Khi không còn tác d\u1ee5ng c\u1ee7a ngo\u1ea1i l\u1ef1c, n\u1ebfu v\u1eadt r\u1eafn l\u1ea5y l\u1ea1i \u0111\u01b0\u1ee3c hình d\u1ea1ng ban \u0111\u1ea7u thì bi\u1ebfn d\u1ea1ng c\u1ee7a v\u1eadt là<\/p>","options":["<strong>A. <\/strong>bi\u1ebfn d\u1ea1ng \u0111àn h\u1ed3i.","<strong>B.<\/strong> bi\u1ebfn d\u1ea1ng không \u0111àn h\u1ed3i.","<strong>C. <\/strong>bi\u1ebfn d\u1ea1ng lò xo.","<strong>D.<\/strong> bi\u1ebfn d\u1ea1ng cong."],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A. <\/strong>bi\u1ebfn d\u1ea1ng \u0111àn h\u1ed3i.<\/span><\/p><p>Khi không còn tác d\u1ee5ng c\u1ee7a ngo\u1ea1i l\u1ef1c, n\u1ebfu v\u1eadt r\u1eafn l\u1ea5y l\u1ea1i \u0111\u01b0\u1ee3c hình d\u1ea1ng ban \u0111\u1ea7u thì bi\u1ebfn d\u1ea1ng c\u1ee7a v\u1eadt là bi\u1ebfn d\u1ea1ng \u0111àn h\u1ed3i.<\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2025-04-14 08:24:44","option_type":"txt","len":2},{"id":"8346","mon_id":"1158790","chapter_id":"1159899","post_id":"8858","question":"<p>Bi\u1ec3u th\u1ee9c \u0111\u1ed9 l\u1edbn c\u1ee7a l\u1ef1c \u0111àn h\u1ed3i<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$F_{\u0111h}=k\\ell$<\/span>.","<strong>B.<\/strong> <span class=\"math-tex\">$F_{\u0111h}=k.\\Delta\\ell$<\/span>.","<strong>C.<\/strong> <span class=\"math-tex\">$F_{\u0111h}=k.|\\Delta\\ell|$<\/span>.","<strong>D.<\/strong> <span class=\"math-tex\">$F_{\u0111h}=k:\\Delta\\ell$<\/span>."],"correct":"3","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>C.<\/strong> <span class=\"math-tex\">$F_{\u0111h}=k.|\\Delta\\ell|$<\/span>.<\/span><\/p><p>Bi\u1ec3u th\u1ee9c \u0111\u1ed9 l\u1edbn c\u1ee7a l\u1ef1c \u0111àn h\u1ed3i là <span class=\"math-tex\">$F_{\u0111h}=k.|\\Delta\\ell|$<\/span>.<\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2025-04-14 08:27:19","option_type":"math","len":0},{"id":"8348","mon_id":"1158790","chapter_id":"1159899","post_id":"8858","question":"<p>K\u1ebft lu\u1eadn nào sau \u0111ây <strong>không \u0111úng<\/strong> \u0111\u1ed1i v\u1edbi l\u1ef1c \u0111àn h\u1ed3i?<\/p>","options":["<strong>A.<\/strong> Xu\u1ea5t hi\u1ec7n khi v\u1eadt b\u1ecb bi\u1ebfn d\u1ea1ng \u0111a\u0300n hô\u0300i.","<strong>B. <\/strong>Luôn là l\u1ef1c kéo.","<strong>C.<\/strong> T\u1ec9 l\u1ec7 v\u1edbi \u0111\u1ed9 bi\u1ebfn d\u1ea1ng.","<strong>D.<\/strong> Ng\u01b0\u1ee3c h\u01b0\u1edbng v\u1edbi l\u1ef1c làm nó b\u1ecb bi\u1ebfn d\u1ea1ng."],"correct":"2","level":"1","hint":"","answer":"<p>K\u1ebft lu\u1eadn không \u0111úng là <span style=\"color:#16a085;\"><strong>B. <\/strong>Luôn là l\u1ef1c kéo.<\/span><\/p><p>B sai vi\u0300 l\u1ef1c \u0111àn h\u1ed3i có th\u1ec3 là l\u1ef1c kéo ho\u1eb7c l\u1ef1c nén.<\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2025-04-14 08:29:23","option_type":"txt","len":3}]}
