{"common":{"save":0,"post_id":"9259","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9847","post_id":"9259","mon_id":"1159539","chapter_id":"1160023","question":"<p>T\u1ea1i sao tay b\u1ecb nóng lên khi c\u1ea7m vào m\u1ed9t chi\u1ebfc thìa kim lo\u1ea1i \u0111ang \u0111\u1eb7t trong c\u1ed1c n\u01b0\u1edbc nóng?<\/p>","options":["A. Kim lo\u1ea1i phát sáng","B. Có \u0111\u1ed1i l\u01b0u trong tay","C. Kim lo\u1ea1i d\u1eabn nhi\u1ec7t t\u1ed1t nên truy\u1ec1n nhi\u1ec7t nhanh t\u1eeb n\u01b0\u1edbc vào tay","D. Nhi\u1ec7t truy\u1ec1n t\u1eeb tay sang n\u01b0\u1edbc"],"correct":"3","level":"2","hint":"<p>Hi\u1ec3u vai trò v\u1eadt li\u1ec7u trong truy\u1ec1n nhi\u1ec7t.<\/p>","answer":"<p><strong data-end=\"752\" data-start=\"668\">\u0110áp án \u0111úng là: C. Kim lo\u1ea1i d\u1eabn nhi\u1ec7t t\u1ed1t nên truy\u1ec1n nhi\u1ec7t nhanh t\u1eeb n\u01b0\u1edbc vào tay<\/strong><br data-end=\"755\" data-start=\"752\" \/><strong data-end=\"770\" data-start=\"755\">Gi\u1ea3i thích:<\/strong><\/p><p>Kim lo\u1ea1i là ch\u1ea5t d\u1eabn nhi\u1ec7t t\u1ed1t → truy\u1ec1n nhanh nhi\u1ec7t t\u1eeb n\u01b0\u1edbc nóng \u0111\u1ebfn tay.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-15 15:19:08","option_type":"txt","len":3},{"id":"9848","post_id":"9259","mon_id":"1159539","chapter_id":"1160023","question":"<p data-end=\"940\" data-start=\"851\">T\u1ea1i sao ng\u01b0\u1eddi ta th\u01b0\u1eddng lót mi\u1ebfng g\u1ed7 ho\u1eb7c v\u1ea3i d\u01b0\u1edbi n\u1ed3i nóng khi \u0111\u1eb7t lên bàn?<\/p><p data-end=\"1067\" data-start=\"942\"> <\/p>","options":["A. \u0110\u1ec3 làm \u0111\u1eb9p","B. \u0110\u1ec3 tránh làm bàn b\u1ea9n","C. \u0110\u1ec3 tránh làm bàn b\u1ecb cháy do g\u1ed7\/v\u1ea3i cách nhi\u1ec7t t\u1ed1t h\u01a1n","D. \u0110\u1ec3 bàn nóng nhanh h\u01a1n"],"correct":"3","level":"2","hint":"<p>G\u1ed7, v\u1ea3i là ch\u1ea5t d\u1eabn nhi\u1ec7t kém.<\/p>","answer":"<p data-end=\"1274\" data-start=\"1069\"><strong data-end=\"1189\" data-start=\"1113\">\u0110áp án \u0111úng là: C. \u0110\u1ec3 tránh làm bàn b\u1ecb cháy do g\u1ed7\/v\u1ea3i cách nhi\u1ec7t t\u1ed1t h\u01a1n<\/strong><br data-end=\"1192\" data-start=\"1189\" \/><strong data-end=\"1207\" data-start=\"1192\">Gi\u1ea3i thích:<\/strong><\/p><p data-end=\"1274\" data-start=\"1069\">G\u1ed7\/v\u1ea3i d\u1eabn nhi\u1ec7t kém → gi\u1ea3m truy\u1ec1n nhi\u1ec7t t\u1eeb n\u1ed3i nóng sang m\u1eb7t bàn.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-15 15:20:10","option_type":"txt","len":3},{"id":"9849","post_id":"9259","mon_id":"1159539","chapter_id":"1160023","question":"<p>Khi \u0111un n\u01b0\u1edbc trong \u1ea5m, ph\u1ea7n \u0111áy \u1ea5m ti\u1ebfp xúc v\u1edbi l\u1eeda nóng lên tr\u01b0\u1edbc, sau \u0111ó toàn b\u1ed9 n\u01b0\u1edbc trong \u1ea5m nóng \u0111\u1ec1u. Quá trình này bao g\u1ed3m hình th\u1ee9c truy\u1ec1n nhi\u1ec7t nào?<\/p>","options":["A. D\u1eabn nhi\u1ec7t","B. \u0110\u1ed1i l\u01b0u","C. D\u1eabn nhi\u1ec7t và \u0111\u1ed1i l\u01b0u","D. D\u1eabn nhi\u1ec7t và b\u1ee9c x\u1ea1"],"correct":"3","level":"2","hint":"<p>Phân tích hai giai \u0111o\u1ea1n: kim lo\u1ea1i nóng → n\u01b0\u1edbc nóng.<\/p>","answer":"<p><strong data-end=\"1646\" data-start=\"1603\">\u0110áp án \u0111úng là: C. D\u1eabn nhi\u1ec7t và \u0111\u1ed1i l\u01b0u<\/strong><br data-end=\"1649\" data-start=\"1646\" \/><strong data-end=\"1664\" data-start=\"1649\">Gi\u1ea3i thích:<\/strong><\/p><p>Nhi\u1ec7t truy\u1ec1n t\u1eeb \u0111áy \u1ea5m qua kim lo\u1ea1i (d\u1eabn nhi\u1ec7t), sau \u0111ó n\u01b0\u1edbc \u0111\u1ed1i l\u01b0u làm nóng \u0111\u1ec1u.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-15 15:21:27","option_type":"txt","len":2}]}