{"common":{"save":0,"post_id":"8455","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7255","post_id":"8455","mon_id":"1159539","chapter_id":"1159710","question":"<p data-end=\"367\" data-start=\"288\">Áp su\u1ea5t ch\u1ea5t l\u1ecfng t\u1ea1i m\u1ed9t \u0111i\u1ec3m trong lòng ch\u1ea5t l\u1ecfng ph\u1ee5 thu\u1ed9c vào y\u1ebfu t\u1ed1 nào?<\/p><p data-end=\"384\" data-start=\"369\"> <\/p>","options":["A. Kh\u1ed1i l\u01b0\u1ee3ng ch\u1ea5t l\u1ecfng.","B. \u0110\u1ed9 sâu c\u1ee7a \u0111i\u1ec3m \u0111ó trong ch\u1ea5t l\u1ecfng.","C. Hình d\u1ea1ng c\u1ee7a bình ch\u1ee9a ch\u1ea5t l\u1ecfng.","<p data-end=\"669\" data-start=\"525\">D. Di\u1ec7n tích b\u1ec1 m\u1eb7t c\u1ee7a ch\u1ea5t l\u1ecfng.<\/p><p data-end=\"910\" data-start=\"671\"> <\/p>"],"correct":"2","level":"1","hint":"<p>D\u1ef1a vào công th\u1ee9c tính áp su\u1ea5t ch\u1ea5t l\u1ecfng:<\/p><p> <span class=\"math-tex\">$p=d.h$<\/span><\/p><p>v\u1edbi <span class=\"math-tex\">$d$<\/span> là tr\u1ecdng l\u01b0\u1ee3ng riêng c\u1ee7a ch\u1ea5t l\u1ecfng, <span class=\"math-tex\">$h$<\/span> là \u0111\u1ed9 sâu.<\/p>","answer":"<p>\u0110áp án \u0111úng là: B. \u0110\u1ed9 sâu c\u1ee7a \u0111i\u1ec3m \u0111ó trong ch\u1ea5t l\u1ecfng.<\/p><p>Gi\u1ea3i thích:<\/p><p>Áp su\u1ea5t ch\u1ea5t l\u1ecfng ch\u1ec9 ph\u1ee5 thu\u1ed9c vào \u0111\u1ed9 sâu và tr\u1ecdng l\u01b0\u1ee3ng riêng c\u1ee7a ch\u1ea5t l\u1ecfng, không ph\u1ee5 thu\u1ed9c vào hình d\u1ea1ng bình ch\u1ee9a hay di\u1ec7n tích b\u1ec1 m\u1eb7t ch\u1ea5t l\u1ecfng.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"125","test":"0","date":"2025-02-17 08:06:59","option_type":"txt","len":3},{"id":"7256","post_id":"8455","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. Niut\u01a1n (N)","B. Mét vuông (m²)","C. Pascal (Pa)","D. Ki-lôgam trên mét kh\u1ed1i (kg\/m³)"],"correct":"3","level":"1","hint":"","answer":"<p>\u0110áp án \u0111úng là: C. Pascal (Pa)<\/p><p>Gi\u1ea3i thích:<\/p><p>Pascal (Pa) là \u0111\u01a1n v\u1ecb \u0111o áp su\u1ea5t trong h\u1ec7 SI, \u0111\u01b0\u1ee3c tính b\u1eb1ng Niut\u01a1n trên mét vuông (<span class=\"math-tex\">$ 1\\ Pa = 1\\ N\/m^2$<\/span> ).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"125","test":"0","date":"2025-02-17 08:08:56","option_type":"txt","len":3},{"id":"7257","post_id":"8455","mon_id":"1159539","chapter_id":"1159710","question":"<p>Áp su\u1ea5t khí quy\u1ec3n là gì?<\/p>","options":["A. L\u1ef1c hút c\u1ee7a Trái \u0110\u1ea5t tác d\u1ee5ng lên không khí.","B. L\u1ef1c c\u1ee7a không khí tác d\u1ee5ng lên b\u1ec1 m\u1eb7t Trái \u0110\u1ea5t theo m\u1ecdi ph\u01b0\u01a1ng.","C. Tr\u1ecdng l\u1ef1c c\u1ee7a các v\u1eadt tác d\u1ee5ng lên Trái \u0110\u1ea5t.","<p data-end=\"1688\" data-start=\"1460\">D. L\u1ef1c c\u1ee7a không khí ch\u1ec9 tác d\u1ee5ng theo ph\u01b0\u01a1ng th\u1eb3ng \u0111\u1ee9ng.<\/p><p data-end=\"1914\" data-start=\"1690\"> <\/p>"],"correct":"2","level":"1","hint":"<p>Không khí có kh\u1ed1i l\u01b0\u1ee3ng, do \u0111ó t\u1ea1o ra áp su\u1ea5t lên b\u1ec1 m\u1eb7t Trái \u0110\u1ea5t.<\/p>","answer":"<p>\u0110áp án \u0111úng là: B. L\u1ef1c c\u1ee7a không khí tác d\u1ee5ng lên b\u1ec1 m\u1eb7t Trái \u0110\u1ea5t theo m\u1ecdi ph\u01b0\u01a1ng.<\/p><p>Gi\u1ea3i thích:<\/p><p>Không khí bao quanh Trái \u0110\u1ea5t có tr\u1ecdng l\u01b0\u1ee3ng, tác \u0111\u1ed9ng lên m\u1ecdi v\u1eadt theo m\u1ecdi h\u01b0\u1edbng, gây ra áp su\u1ea5t khí quy\u1ec3n.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"125","test":"0","date":"2025-02-17 08:12:31","option_type":"txt","len":3}]}