{"common":{"save":0,"post_id":"9231","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9807","post_id":"9231","mon_id":"1159539","chapter_id":"1160023","question":"<p>Khi c\u1ecd xát m\u1ed9t mi\u1ebfng kim lo\u1ea1i trên sàn, nhi\u1ec7t \u0111\u1ed9 c\u1ee7a nó t\u0103ng. \u0110i\u1ec1u \u0111ó cho th\u1ea5y:<\/p>","options":["A. Nhi\u1ec7t ch\u1ec9 có th\u1ec3 truy\u1ec1n t\u1eeb n\u01a1i nóng h\u01a1n","B. N\u1ed9i n\u0103ng ch\u1ec9 t\u0103ng do truy\u1ec1n nhi\u1ec7t","C. Có th\u1ec3 làm t\u0103ng n\u1ed9i n\u0103ng b\u1eb1ng cách th\u1ef1c hi\u1ec7n công","D. Không th\u1ec3 thay \u0111\u1ed5i n\u1ed9i n\u0103ng b\u1eb1ng cách khác"],"correct":"3","level":"2","hint":"<p>C\u1ecd xát là th\u1ef1c hi\u1ec7n công → n\u0103ng l\u01b0\u1ee3ng chuy\u1ec3n d\u1ea1ng.<\/p>","answer":"<p><strong data-end=\"3198\" data-start=\"3129\">\u0110áp án \u0111úng là: C. Có th\u1ec3 làm t\u0103ng n\u1ed9i n\u0103ng b\u1eb1ng cách th\u1ef1c hi\u1ec7n công<\/strong><br data-end=\"3201\" data-start=\"3198\" \/><strong data-end=\"3216\" data-start=\"3201\">Gi\u1ea3i thích:<\/strong><\/p><p>C\u1ecd xát làm các phân t\u1eed chuy\u1ec3n \u0111\u1ed9ng m\u1ea1nh h\u01a1n → n\u1ed9i n\u0103ng t\u0103ng.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-14 18:54:44","option_type":"txt","len":3},{"id":"9808","post_id":"9231","mon_id":"1159539","chapter_id":"1160023","question":"<p>M\u1ed9t v\u1eadt \u0111\u01b0\u1ee3c \u0111\u1eb7t trong ng\u0103n \u0111á t\u1ee7 l\u1ea1nh. \u0110i\u1ec1u gì x\u1ea3y ra v\u1edbi n\u1ed9i n\u0103ng c\u1ee7a v\u1eadt?<\/p>","options":["A. T\u0103ng","B. Không \u0111\u1ed5i","C. Gi\u1ea3m","D. Lúc \u0111\u1ea7u t\u0103ng, sau \u0111ó gi\u1ea3m"],"correct":"3","level":"2","hint":"<p>Nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m → chuy\u1ec3n \u0111\u1ed9ng phân t\u1eed gi\u1ea3m.<\/p>","answer":"<p data-end=\"3613\" data-start=\"3443\"><strong data-end=\"3522\" data-start=\"3498\">\u0110áp án \u0111úng là: C. Gi\u1ea3m<\/strong><br data-end=\"3525\" data-start=\"3522\" \/><strong data-end=\"3540\" data-start=\"3525\">Gi\u1ea3i thích:<\/strong><\/p><p data-end=\"3613\" data-start=\"3443\">T\u1ee7 l\u1ea1nh làm v\u1eadt m\u1ea5t nhi\u1ec7t → chuy\u1ec3n \u0111\u1ed9ng phân t\u1eed y\u1ebfu d\u1ea7n → n\u1ed9i n\u0103ng gi\u1ea3m.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-14 18:55:56","option_type":"txt","len":2},{"id":"9809","post_id":"9231","mon_id":"1159539","chapter_id":"1160023","question":"<p>Hai v\u1eadt gi\u1ed1ng h\u1ec7t nhau, m\u1ed9t \u0111ang \u1edf ngoài n\u1eafng, m\u1ed9t \u0111\u1eb7t trong bóng râm. So sánh n\u1ed9i n\u0103ng c\u1ee7a chúng sau m\u1ed9t th\u1eddi gian?<\/p>","options":["A. B\u1eb1ng nhau","B. V\u1eadt ngoài n\u1eafng có n\u1ed9i n\u0103ng l\u1edbn h\u01a1n","C. V\u1eadt trong bóng râm có n\u1ed9i n\u0103ng l\u1edbn h\u01a1n","D. Không th\u1ec3 so sánh"],"correct":"2","level":"2","hint":"<p>V\u1eadt ngoài n\u1eafng h\u1ea5p th\u1ee5 n\u0103ng l\u01b0\u1ee3ng t\u1eeb M\u1eb7t Tr\u1eddi.<\/p>","answer":"<p><strong data-end=\"3989\" data-start=\"3935\">\u0110áp án \u0111úng là: B. V\u1eadt ngoài n\u1eafng có n\u1ed9i n\u0103ng l\u1edbn h\u01a1n<\/strong><br data-end=\"3992\" data-start=\"3989\" \/><strong data-end=\"4007\" data-start=\"3992\">Gi\u1ea3i thích:<\/strong><\/p><p>Do ti\u1ebfp xúc ánh n\u1eafng nên h\u1ea5p th\u1ee5 nhi\u1ec7t → nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n → n\u1ed9i n\u0103ng t\u0103ng h\u01a1n.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-14 18:56:45","option_type":"txt","len":3}]}