{"common":{"save":0,"post_id":"8439","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7165","post_id":"8439","mon_id":"1159539","chapter_id":"1159710","question":"<p>Áp su\u1ea5t \u0111\u01b0\u1ee3c xác \u0111\u1ecbnh b\u1eb1ng công th\u1ee9c nào sau \u0111ây?<\/p>","options":["A. <span class=\"math-tex\">$p=F.S$<\/span>","B. <span class=\"math-tex\">$p= {F \\over S}$<\/span>","C. <span class=\"math-tex\">$p= F+S$<\/span>","D. <span class=\"math-tex\">$p= {S\\over F}$<\/span>"],"correct":"2","level":"1","hint":"<p>Áp d\u1ee5ng \u0111\u1ecbnh ngh\u0129a áp su\u1ea5t.<\/p>","answer":"<p>\u0110áp án: B. <span class=\"math-tex\">$p= {F \\over S}$<\/span><\/p><p>Gi\u1ea3i thích:<\/p><p>Áp su\u1ea5t <span class=\"math-tex\">$(p)$<\/span> là l\u1ef1c tác d\u1ee5ng lên m\u1ed9t \u0111\u01a1n v\u1ecb di\u1ec7n tích: <span class=\"math-tex\">$p= {F \\over S}$<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"125","test":"0","date":"2025-02-10 22:45:28","option_type":"math","len":0},{"id":"7166","post_id":"8439","mon_id":"1159539","chapter_id":"1159710","question":"<p>\u0110\u01a1n v\u1ecb \u0111o áp su\u1ea5t trong h\u1ec7 SI là gì?<\/p>","options":["A. Niuton (N)","B. Mét vuông <span class=\"math-tex\">$(m^2)$<\/span>","C. Pascal (Pa)","D. Kilogam (kg)"],"correct":"3","level":"1","hint":"","answer":"<p>\u0110áp án: C. Pascal (Pa)<\/p><p>Gi\u1ea3i thích: <\/p><p>\u0110\u01a1n v\u1ecb c\u1ee7a áp su\u1ea5t là Pascal (Pa), \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a: <span class=\"math-tex\">$1\\ Pa= 1{N \\over m^2}$<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"125","test":"0","date":"2025-02-10 22:48:01","option_type":"math","len":0},{"id":"7167","post_id":"8439","mon_id":"1159539","chapter_id":"1159710","question":"<p>Khi tác d\u1ee5ng cùng m\u1ed9t l\u1ef1c lên hai b\u1ec1 m\u1eb7t có di\u1ec7n tích khác nhau, b\u1ec1 m\u1eb7t nào ch\u1ecbu áp su\u1ea5t l\u1edbn h\u01a1n?<\/p>","options":["A. B\u1ec1 m\u1eb7t có di\u1ec7n tích l\u1edbn h\u01a1n.","B. B\u1ec1 m\u1eb7t có di\u1ec7n tích nh\u1ecf h\u01a1n.","C. C\u1ea3 hai b\u1ec1 m\u1eb7t ch\u1ecbu áp su\u1ea5t nh\u01b0 nhau.","D. Không th\u1ec3 xác \u0111\u1ecbnh."],"correct":"2","level":"1","hint":"","answer":"<p>\u0110áp án: B. B\u1ec1 m\u1eb7t có di\u1ec7n tích nh\u1ecf h\u01a1n.<\/p><p>Gi\u1ea3i thích: <\/p><p>- Theo công th\u1ee9c <span class=\"math-tex\">$p= {F \\over S}$<\/span>, n\u1ebfu l\u1ef1c F không \u0111\u1ed5i mà di\u1ec7n tích S gi\u1ea3m, thì áp su\u1ea5t t\u0103ng.<\/p><p>- Vì v\u1eady, b\u1ec1 m\u1eb7t có di\u1ec7n tích nh\u1ecf h\u01a1n thì s\u1ebd ch\u1ecbu áp su\u1ea5t l\u1edbn h\u01a1n.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"125","test":"0","date":"2025-02-10 22:53:45","option_type":"txt","len":2}]}
