{"id":567277,"date":"2026-07-23T09:40:03","date_gmt":"2026-07-23T02:40:03","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=567277"},"modified":"2026-07-23T09:40:03","modified_gmt":"2026-07-23T02:40:03","slug":"cong-thuc-tinh-ap-suat","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/cong-thuc-tinh-ap-suat\/","title":{"rendered":"C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t p = F\/S v\u00e0 \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng"},"content":{"rendered":"<p style=\"text-align: justify;\">C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t c\u01a1 b\u1ea3n nh\u1ea5t l\u00e0 <b>p = F\/S<\/b>, trong \u0111\u00f3 F l\u00e0 \u00e1p l\u1ef1c (\u0111\u01a1n v\u1ecb niut\u01a1n \u2013 N), S l\u00e0 di\u1ec7n t\u00edch b\u1ecb \u00e9p (\u0111\u01a1n v\u1ecb m\u00e9t vu\u00f4ng \u2013 m\u00b2) v\u00e0 \u00e1p su\u1ea5t p \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng paxcan (Pa). \u0110\u00e2y l\u00e0 ph\u1ea7n ki\u1ebfn th\u1ee9c tr\u1ecdng t\u00e2m c\u1ee7a V\u1eadt l\u00fd l\u1edbp 8, xu\u1ea5t hi\u1ec7n trong h\u1ea7u h\u1ebft \u0111\u1ec1 ki\u1ec3m tra v\u00e0 gi\u1ea3i th\u00edch r\u1ea5t nhi\u1ec1u hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1eddi s\u1ed1ng. B\u00ean c\u1ea1nh \u00e1p su\u1ea5t ch\u1ea5t r\u1eafn, b\u1ea1n c\u00f2n g\u1eb7p c\u00f4ng th\u1ee9c \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng p = d.h v\u00e0 \u00e1p su\u1ea5t kh\u00ed quy\u1ec3n. B\u00e0i vi\u1ebft t\u1ed5ng h\u1ee3p \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ecbnh ngh\u0129a, c\u00e1c c\u00f4ng th\u1ee9c, b\u1ea3ng \u0111\u01a1n v\u1ecb, v\u00ed d\u1ee5 c\u00f3 l\u1eddi gi\u1ea3i t\u1eebng b\u01b0\u1edbc v\u00e0 nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p \u0111\u1ec3 b\u1ea1n n\u1eafm ch\u1eafc v\u00e0 v\u1eadn d\u1ee5ng t\u1ed1t.<\/p>\n<h2 style=\"text-align: justify;\"><b>\u00c1p su\u1ea5t l\u00e0 g\u00ec?<\/b><\/h2>\n<p style=\"text-align: justify;\">\u00c1p su\u1ea5t l\u00e0 \u0111\u1ed9 l\u1edbn c\u1ee7a \u00e1p l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean m\u1ed9t \u0111\u01a1n v\u1ecb di\u1ec7n t\u00edch b\u1ecb \u00e9p. \u00c1p l\u1ef1c l\u00e0 l\u1ef1c \u00e9p c\u00f3 ph\u01b0\u01a1ng vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t b\u1ecb \u00e9p. V\u1edbi c\u00f9ng m\u1ed9t \u00e1p l\u1ef1c, n\u1ebfu di\u1ec7n t\u00edch b\u1ecb \u00e9p c\u00e0ng nh\u1ecf th\u00ec \u00e1p su\u1ea5t c\u00e0ng l\u1edbn; ng\u01b0\u1ee3c l\u1ea1i, di\u1ec7n t\u00edch c\u00e0ng l\u1edbn th\u00ec \u00e1p su\u1ea5t c\u00e0ng nh\u1ecf. \u0110i\u1ec1u n\u00e0y gi\u1ea3i th\u00edch v\u00ec sao dao c\u00e0ng s\u1eafc (l\u01b0\u1ee1i m\u1ecfng, di\u1ec7n t\u00edch nh\u1ecf) th\u00ec c\u00e0ng d\u1ec5 c\u1eaft, c\u00f2n xe t\u0103ng d\u00f9ng b\u1ea3n x\u00edch r\u1ed9ng \u0111\u1ec3 kh\u00f4ng b\u1ecb l\u00fan.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-569387\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-4.jpg\" alt=\"ap-suat-la-gi-4\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-4.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-4-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-4-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2 style=\"text-align: justify;\"><b>C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t<\/b><\/h2>\n<p style=\"text-align: justify;\">C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t ch\u1ea5t r\u1eafn t\u00e1c d\u1ee5ng l\u00ean m\u1eb7t b\u1ecb \u00e9p l\u00e0 <b>p = F \/ S<\/b>. \u0110\u00e2y l\u00e0 c\u00f4ng th\u1ee9c b\u1ea1n c\u1ea7n thu\u1ed9c l\u00f2ng \u0111\u1ea7u ti\u00ean.<\/p>\n<p style=\"text-align: justify;\">Trong \u0111\u00f3:<\/p>\n<ul style=\"text-align: justify;\">\n<li>p: \u00c1p su\u1ea5t (\u0111\u01a1n v\u1ecb paxcan \u2013 Pa).<\/li>\n<li>F: \u00c1p l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean m\u1eb7t b\u1ecb \u00e9p (\u0111\u01a1n v\u1ecb niut\u01a1n \u2013 N).<\/li>\n<li>S: Di\u1ec7n t\u00edch m\u1eb7t b\u1ecb \u00e9p (\u0111\u01a1n v\u1ecb m\u00e9t vu\u00f4ng \u2013 m\u00b2).<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">\u0110\u01a1n v\u1ecb c\u1ee7a \u00e1p su\u1ea5t l\u00e0 paxcan (Pa), v\u1edbi quy \u01b0\u1edbc <b>1 Pa = 1 N\/m\u00b2<\/b>. T\u1eeb c\u00f4ng th\u1ee9c g\u1ed1c, b\u1ea1n c\u00f3 th\u1ec3 suy ra hai c\u00f4ng th\u1ee9c bi\u1ebfn \u0111\u1ed5i r\u1ea5t hay d\u00f9ng khi gi\u1ea3i b\u00e0i t\u1eadp: t\u00ednh \u00e1p l\u1ef1c <b>F = p \u00d7 S<\/b> v\u00e0 t\u00ednh di\u1ec7n t\u00edch <b>S = F \/ p<\/b>. Ch\u1ec9 c\u1ea7n bi\u1ebft hai trong ba \u0111\u1ea1i l\u01b0\u1ee3ng l\u00e0 t\u00ecm \u0111\u01b0\u1ee3c \u0111\u1ea1i l\u01b0\u1ee3ng c\u00f2n l\u1ea1i.<\/p>\n<h2 style=\"text-align: justify;\"><b>B\u1ea3ng \u0111\u01a1n v\u1ecb \u0111o \u00e1p su\u1ea5t v\u00e0 c\u00e1ch quy \u0111\u1ed5i<\/b><\/h2>\n<p style=\"text-align: justify;\">Ngo\u00e0i paxcan, th\u1ef1c t\u1ebf c\u00f2n d\u00f9ng nhi\u1ec1u \u0111\u01a1n v\u1ecb kh\u00e1c trong kh\u00ed t\u01b0\u1ee3ng, y h\u1ecdc v\u00e0 k\u1ef9 thu\u1eadt. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y gi\u00fap b\u1ea1n quy \u0111\u1ed5i nhanh c\u00e1c \u0111\u01a1n v\u1ecb \u00e1p su\u1ea5t ph\u1ed5 bi\u1ebfn v\u1ec1 Pa.<\/p>\n<table style=\"border-collapse: collapse; width: 100%;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">\u0110\u01a1n v\u1ecb<\/th>\n<th style=\"padding: 8px;\">K\u00fd hi\u1ec7u<\/th>\n<th style=\"padding: 8px;\">Quy \u0111\u1ed5i ra paxcan (Pa)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">Paxcan<\/td>\n<td style=\"padding: 8px;\">Pa<\/td>\n<td style=\"padding: 8px;\">1 Pa = 1 N\/m\u00b2<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Kil\u00f4paxcan<\/td>\n<td style=\"padding: 8px;\">kPa<\/td>\n<td style=\"padding: 8px;\">1 kPa = 1.000 Pa<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Bar<\/td>\n<td style=\"padding: 8px;\">bar<\/td>\n<td style=\"padding: 8px;\">1 bar = 100.000 Pa = 100 kPa<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Atm\u00f4tphe<\/td>\n<td style=\"padding: 8px;\">atm<\/td>\n<td style=\"padding: 8px;\">1 atm \u2248 101.325 Pa \u2248 1,013 bar<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Milim\u00e9t th\u1ee7y ng\u00e2n<\/td>\n<td style=\"padding: 8px;\">mmHg<\/td>\n<td style=\"padding: 8px;\">1 mmHg \u2248 133,3 Pa; 1 atm \u2248 760 mmHg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"text-align: justify;\"><b>C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng<\/b><\/h2>\n<p style=\"text-align: justify;\">Ch\u1ea5t l\u1ecfng g\u00e2y \u00e1p su\u1ea5t theo m\u1ecdi ph\u01b0\u01a1ng l\u00ean \u0111\u00e1y b\u00ecnh, th\u00e0nh b\u00ecnh v\u00e0 c\u00e1c v\u1eadt \u1edf trong l\u00f2ng n\u00f3. \u00c1p su\u1ea5t t\u1ea1i m\u1ed9t \u0111i\u1ec3m trong l\u00f2ng ch\u1ea5t l\u1ecfng \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng <b>p = d \u00d7 h<\/b>, v\u1edbi d l\u00e0 tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang c\u1ee7a ch\u1ea5t l\u1ecfng (N\/m\u00b3) v\u00e0 h l\u00e0 \u0111\u1ed9 s\u00e2u t\u00ednh t\u1eeb m\u1eb7t tho\u00e1ng \u0111\u1ebfn \u0111i\u1ec3m \u0111ang x\u00e9t (m). C\u00e0ng xu\u1ed1ng s\u00e2u, \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng c\u00e0ng l\u1edbn \u2013 \u0111\u00f3 l\u00e0 l\u00fd do khi l\u1eb7n s\u00e2u ta th\u1ea5y t\u1ee9c tai.<\/p>\n<p style=\"text-align: justify;\">M\u1ed9t t\u00ednh ch\u1ea5t quan tr\u1ecdng kh\u00e1c l\u00e0 nguy\u00ean l\u00fd Pascal: \u00e1p su\u1ea5t t\u00e1c d\u1ee5ng l\u00ean m\u1ed9t ch\u1ea5t l\u1ecfng k\u00edn \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i nguy\u00ean v\u1eb9n theo m\u1ecdi h\u01b0\u1edbng. Nguy\u00ean l\u00fd n\u00e0y l\u00e0 c\u01a1 s\u1edf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y th\u1ee7y l\u1ef1c, k\u00edch th\u1ee7y l\u1ef1c v\u00e0 h\u1ec7 th\u1ed1ng phanh d\u1ea7u tr\u00ean \u00f4 t\u00f4, xe m\u00e1y.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-569385\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-2.jpg\" alt=\"ap-suat-la-gi-2\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-2.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-2-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-2-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2 style=\"text-align: justify;\"><b>\u00c1p su\u1ea5t kh\u00ed quy\u1ec3n<\/b><\/h2>\n<p style=\"text-align: justify;\">\u00c1p su\u1ea5t kh\u00ed quy\u1ec3n l\u00e0 \u00e1p su\u1ea5t do l\u1edbp kh\u00f4ng kh\u00ed bao quanh Tr\u00e1i \u0110\u1ea5t g\u00e2y ra. Do c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng n\u00ean kh\u00f4ng kh\u00ed g\u00e2y \u00e1p su\u1ea5t theo m\u1ecdi ph\u01b0\u01a1ng l\u00ean m\u1ecdi v\u1eadt. \u00c1p su\u1ea5t kh\u00ed quy\u1ec3n thay \u0111\u1ed5i theo \u0111\u1ed9 cao: c\u00e0ng l\u00ean cao, kh\u00f4ng kh\u00ed c\u00e0ng lo\u00e3ng n\u00ean \u00e1p su\u1ea5t kh\u00ed quy\u1ec3n c\u00e0ng gi\u1ea3m. \u1ede \u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n ngang m\u1ef1c n\u01b0\u1edbc bi\u1ec3n, \u00e1p su\u1ea5t kh\u00ed quy\u1ec3n x\u1ea5p x\u1ec9 1 atm \u2248 101.325 Pa \u2248 760 mmHg.<\/p>\n<h2 style=\"text-align: justify;\"><b>C\u00e1ch l\u00e0m t\u0103ng ho\u1eb7c gi\u1ea3m \u00e1p su\u1ea5t<\/b><\/h2>\n<p style=\"text-align: justify;\">T\u1eeb c\u00f4ng th\u1ee9c p = F\/S, ta c\u00f3 hai c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh \u00e1p su\u1ea5t. Mu\u1ed1n t\u0103ng \u00e1p su\u1ea5t, ta t\u0103ng \u00e1p l\u1ef1c F ho\u1eb7c gi\u1ea3m di\u1ec7n t\u00edch b\u1ecb \u00e9p S (l\u00e0m m\u0169i nh\u1ecdn, l\u01b0\u1ee1i m\u1ecfng). Mu\u1ed1n gi\u1ea3m \u00e1p su\u1ea5t, ta gi\u1ea3m \u00e1p l\u1ef1c ho\u1eb7c t\u0103ng di\u1ec7n t\u00edch b\u1ecb \u00e9p (d\u00f9ng b\u1ea3n x\u00edch r\u1ed9ng, m\u00f3ng nh\u00e0 r\u1ed9ng, d\u00e2y \u0111eo ba l\u00f4 b\u1ea3n to).<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-569386\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-3.jpg\" alt=\"ap-suat-la-gi-3\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-3.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-3-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-3-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2 style=\"text-align: justify;\"><b>V\u00ed d\u1ee5 t\u00ednh \u00e1p su\u1ea5t c\u00f3 l\u1eddi gi\u1ea3i t\u1eebng b\u01b0\u1edbc<\/b><\/h2>\n<p style=\"text-align: justify;\">C\u00e1c v\u00ed d\u1ee5 d\u01b0\u1edbi \u0111\u00e2y minh h\u1ecda c\u00e1ch \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t cho c\u1ea3 ch\u1ea5t r\u1eafn v\u00e0 ch\u1ea5t l\u1ecfng, k\u00e8m b\u01b0\u1edbc \u0111\u1ed5i \u0111\u01a1n v\u1ecb th\u01b0\u1eddng g\u1eb7p.<\/p>\n<p style=\"text-align: justify;\"><b>V\u00ed d\u1ee5 1 (\u00e1p su\u1ea5t ch\u1ea5t r\u1eafn).<\/b> M\u1ed9t v\u1eadt t\u1ea1o \u00e1p l\u1ef1c F = 200 N \u00e9p l\u00ean di\u1ec7n t\u00edch S = 0,5 m\u00b2. T\u00ednh \u00e1p su\u1ea5t.<br \/>\nB\u01b0\u1edbc 1 \u2013 C\u00f4ng th\u1ee9c: p = F \/ S.<br \/>\nB\u01b0\u1edbc 2 \u2013 Thay s\u1ed1: p = 200 \/ 0,5.<br \/>\nB\u01b0\u1edbc 3 \u2013 K\u1ebft qu\u1ea3: p = 400 Pa.<\/p>\n<p style=\"text-align: justify;\"><b>V\u00ed d\u1ee5 2 (t\u00ecm \u00e1p l\u1ef1c).<\/b> \u00c1p su\u1ea5t p = 1.000 Pa t\u00e1c d\u1ee5ng l\u00ean di\u1ec7n t\u00edch S = 2 m\u00b2. T\u00ednh \u00e1p l\u1ef1c F.<br \/>\nB\u01b0\u1edbc 1 \u2013 C\u00f4ng th\u1ee9c suy ra: F = p \u00d7 S.<br \/>\nB\u01b0\u1edbc 2 \u2013 Thay s\u1ed1: F = 1.000 \u00d7 2.<br \/>\nB\u01b0\u1edbc 3 \u2013 K\u1ebft qu\u1ea3: F = 2.000 N.<\/p>\n<p style=\"text-align: justify;\"><b>V\u00ed d\u1ee5 3 (c\u00f3 \u0111\u1ed5i \u0111\u01a1n v\u1ecb di\u1ec7n t\u00edch).<\/b> M\u1ed9t kh\u1ed1i g\u1ed7 n\u1eb7ng 6 kg \u0111\u1eb7t tr\u00ean s\u00e0n, m\u1eb7t ti\u1ebfp x\u00fac 200 cm\u00b2. T\u00ednh \u00e1p su\u1ea5t.<br \/>\nB\u01b0\u1edbc 1 \u2013 T\u00ednh \u00e1p l\u1ef1c: v\u1eadt \u0111\u1eb7t tr\u00ean m\u1eb7t ngang n\u00ean F = P = 10 \u00d7 6 = 60 N.<br \/>\nB\u01b0\u1edbc 2 \u2013 \u0110\u1ed5i di\u1ec7n t\u00edch: 200 cm\u00b2 = 200 \u00d7 0,0001 = 0,02 m\u00b2.<br \/>\nB\u01b0\u1edbc 3 \u2013 Thay s\u1ed1: p = F \/ S = 60 \/ 0,02 = 3.000 Pa.<\/p>\n<p style=\"text-align: justify;\"><b>V\u00ed d\u1ee5 4 (\u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng).<\/b> T\u00ednh \u00e1p su\u1ea5t c\u1ee7a n\u01b0\u1edbc t\u1ea1i \u0111i\u1ec3m s\u00e2u h = 2 m, bi\u1ebft tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang c\u1ee7a n\u01b0\u1edbc d = 10.000 N\/m\u00b3.<br \/>\nB\u01b0\u1edbc 1 \u2013 C\u00f4ng th\u1ee9c: p = d \u00d7 h.<br \/>\nB\u01b0\u1edbc 2 \u2013 Thay s\u1ed1: p = 10.000 \u00d7 2.<br \/>\nB\u01b0\u1edbc 3 \u2013 K\u1ebft qu\u1ea3: p = 20.000 Pa.<\/p>\n<p style=\"text-align: justify;\"><b>V\u00ed d\u1ee5 5 (tr\u1eafc nghi\u1ec7m).<\/b> \u0110\u01a1n v\u1ecb c\u1ee7a \u00e1p su\u1ea5t l\u00e0 g\u00ec? A. N &nbsp; B. Pa &nbsp; C. kg &nbsp; D. m\u00b2. \u0110\u00e1p \u00e1n: B (Pa).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-569384\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-1.jpg\" alt=\"ap-suat-la-gi-1\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-1.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-1-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/ap-suat-la-gi-1-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2 style=\"text-align: justify;\"><b>Nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi t\u00ednh \u00e1p su\u1ea5t<\/b><\/h2>\n<p style=\"text-align: justify;\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c l\u1ed7i khi\u1ebfn h\u1ecdc sinh d\u1ec5 m\u1ea5t \u0111i\u1ec3m khi l\u00e0m b\u00e0i, b\u1ea1n n\u00ean r\u00e0 l\u1ea1i tr\u01b0\u1edbc khi n\u1ed9p.<\/p>\n<ul style=\"text-align: justify;\">\n<li>Nh\u1ea7m \u00e1p l\u1ef1c F v\u1edbi tr\u1ecdng l\u01b0\u1ee3ng P: ch\u00fang ch\u1ec9 b\u1eb1ng nhau khi v\u1eadt n\u1eb1m y\u00ean tr\u00ean m\u1eb7t ph\u1eb3ng n\u1eb1m ngang.<\/li>\n<li>Qu\u00ean \u0111\u1ed5i \u0111\u01a1n v\u1ecb di\u1ec7n t\u00edch: 1 cm\u00b2 = 0,0001 m\u00b2 v\u00e0 1 mm\u00b2 = 0,000001 m\u00b2. Kh\u00f4ng \u0111\u1ed5i s\u1ebd ra k\u1ebft qu\u1ea3 sai h\u00e0ng ngh\u00ecn l\u1ea7n.<\/li>\n<li>Nh\u1ea7m tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang d (N\/m\u00b3) v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang D (kg\/m\u00b3); nh\u1edb li\u00ean h\u1ec7 d = 10 \u00d7 D.<\/li>\n<li>D\u00f9ng sai c\u00f4ng th\u1ee9c: ch\u1ea5t r\u1eafn d\u00f9ng p = F\/S, c\u00f2n ch\u1ea5t l\u1ecfng d\u00f9ng p = d.h.<\/li>\n<li>Ghi sai \u0111\u01a1n v\u1ecb k\u1ebft qu\u1ea3: \u00e1p su\u1ea5t l\u00e0 Pa (N\/m\u00b2), kh\u00f4ng ph\u1ea3i N.<\/li>\n<\/ul>\n<h2 style=\"text-align: justify;\"><b>\u1ee8ng d\u1ee5ng c\u1ee7a \u00e1p su\u1ea5t trong \u0111\u1eddi s\u1ed1ng<\/b><\/h2>\n<p style=\"text-align: justify;\">\u00c1p su\u1ea5t gi\u00fap gi\u1ea3i th\u00edch nhi\u1ec1u hi\u1ec7n t\u01b0\u1ee3ng quen thu\u1ed9c quanh ta. M\u0169i \u0111inh v\u00e0 l\u01b0\u1ee1i dao \u0111\u01b0\u1ee3c l\u00e0m nh\u1ecdn, m\u1ecfng \u0111\u1ec3 t\u0103ng \u00e1p su\u1ea5t, gi\u00fap \u0111\u00e2m v\u00e0 c\u1eaft d\u1ec5 h\u01a1n. Ng\u01b0\u1ee3c l\u1ea1i, xe t\u0103ng v\u00e0 m\u00e1y k\u00e9o d\u00f9ng b\u1ea3n x\u00edch r\u1ed9ng \u0111\u1ec3 gi\u1ea3m \u00e1p su\u1ea5t l\u00ean m\u1eb7t \u0111\u1ea5t, h\u1ea1n ch\u1ebf b\u1ecb l\u00fan.<\/p>\n<p style=\"text-align: justify;\">Gi\u00e1c h\u00fat v\u00e0 \u1ed1ng h\u00fat ho\u1ea1t \u0111\u1ed9ng nh\u1edd ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t kh\u00ed quy\u1ec3n. N\u1ed3i \u00e1p su\u1ea5t t\u0103ng \u00e1p su\u1ea5t b\u00ean trong \u0111\u1ec3 th\u1ee9c \u0103n ch\u00edn nhanh h\u01a1n, c\u00f2n \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong m\u00e1y th\u1ee7y l\u1ef1c v\u00e0 h\u1ec7 th\u1ed1ng phanh xe \u0111\u1ec3 truy\u1ec1n l\u1ef1c hi\u1ec7u qu\u1ea3.<\/p>\n<h2 style=\"text-align: justify;\"><b>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 \u00e1p su\u1ea5t<\/b><\/h2>\n<h3 style=\"text-align: justify;\"><b>C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t l\u00e0 g\u00ec?<\/b><\/h3>\n<p style=\"text-align: justify;\">C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t ch\u1ea5t r\u1eafn l\u00e0 p = F\/S, v\u1edbi F l\u00e0 \u00e1p l\u1ef1c (N) v\u00e0 S l\u00e0 di\u1ec7n t\u00edch b\u1ecb \u00e9p (m\u00b2); \u0111\u01a1n v\u1ecb \u00e1p su\u1ea5t l\u00e0 paxcan (Pa).<\/p>\n<h3 style=\"text-align: justify;\"><b>\u00c1p su\u1ea5t l\u00e0 g\u00ec?<\/b><\/h3>\n<p style=\"text-align: justify;\">\u00c1p su\u1ea5t l\u00e0 \u0111\u1ed9 l\u1edbn c\u1ee7a \u00e1p l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean m\u1ed9t \u0111\u01a1n v\u1ecb di\u1ec7n t\u00edch b\u1ecb \u00e9p.<\/p>\n<h3 style=\"text-align: justify;\"><b>\u0110\u01a1n v\u1ecb c\u1ee7a \u00e1p su\u1ea5t l\u00e0 g\u00ec?<\/b><\/h3>\n<p style=\"text-align: justify;\">L\u00e0 paxcan (Pa); 1 Pa = 1 N\/m\u00b2. Ngo\u00e0i ra c\u00f2n c\u00f3 kPa, bar, atm v\u00e0 mmHg.<\/p>\n<h3 style=\"text-align: justify;\"><b>C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng th\u1ebf n\u00e0o?<\/b><\/h3>\n<p style=\"text-align: justify;\">\u00c1p su\u1ea5t ch\u1ea5t l\u1ecfng t\u00ednh b\u1eb1ng p = d \u00d7 h, v\u1edbi d l\u00e0 tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang c\u1ee7a ch\u1ea5t l\u1ecfng (N\/m\u00b3) v\u00e0 h l\u00e0 \u0111\u1ed9 s\u00e2u t\u00ednh t\u1eeb m\u1eb7t tho\u00e1ng (m).<\/p>\n<h3 style=\"text-align: justify;\"><b>C\u00e1ch t\u00ednh \u00e1p l\u1ef1c v\u00e0 di\u1ec7n t\u00edch khi bi\u1ebft \u00e1p su\u1ea5t?<\/b><\/h3>\n<p style=\"text-align: justify;\">T\u1eeb p = F\/S suy ra F = p \u00d7 S \u0111\u1ec3 t\u00ednh \u00e1p l\u1ef1c, v\u00e0 S = F \/ p \u0111\u1ec3 t\u00ednh di\u1ec7n t\u00edch b\u1ecb \u00e9p.<\/p>\n<h3 style=\"text-align: justify;\"><b>V\u00ec sao dao s\u1eafc d\u1ec5 c\u1eaft h\u01a1n?<\/b><\/h3>\n<p style=\"text-align: justify;\">V\u00ec l\u01b0\u1ee1i m\u1ecfng c\u00f3 di\u1ec7n t\u00edch nh\u1ecf, t\u1ea1o ra \u00e1p su\u1ea5t l\u1edbn v\u1edbi c\u00f9ng m\u1ed9t l\u1ef1c \u00e9p n\u00ean c\u1eaft d\u1ec5 h\u01a1n.<\/p>\n<h2 style=\"text-align: justify;\"><b>K\u1ebft lu\u1eadn<\/b><\/h2>\n<p style=\"text-align: justify;\">N\u1eafm v\u1eefng c\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t p = F\/S c\u00f9ng c\u00f4ng th\u1ee9c \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng p = d.h, c\u00e1ch quy \u0111\u1ed5i \u0111\u01a1n v\u1ecb v\u00e0 c\u00e1c b\u01b0\u1edbc gi\u1ea3i b\u00e0i t\u1eadp l\u00e0 b\u1ea1n \u0111\u00e3 t\u1ef1 tin x\u1eed l\u00fd ph\u1ea7n ki\u1ebfn th\u1ee9c \u00e1p su\u1ea5t c\u1ee7a V\u1eadt l\u00fd l\u1edbp 8. \u0110\u1ec3 h\u1ecdc th\u00eam, m\u1eddi b\u1ea1n tham kh\u1ea3o c\u00e1c b\u00e0i <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/cong-thuc-tinh-quang-duong\/\">c\u00f4ng th\u1ee9c t\u00ednh qu\u00e3ng \u0111\u01b0\u1eddng<\/a>, <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/1-nam-anh-sang-bang-bao-nhieu-km\/\">m\u1ed9t n\u0103m \u00e1nh s\u00e1ng b\u1eb1ng bao nhi\u00eau km<\/a> v\u00e0 <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/dien-tich-cac-tinh-viet-nam\/\">di\u1ec7n t\u00edch c\u00e1c t\u1ec9nh Vi\u1ec7t Nam<\/a> tr\u00ean chuy\u00ean m\u1ee5c tin t\u1ee9c c\u1ee7a Ho\u00e0ng H\u00e0 Mobile.<\/p>\n<p style=\"text-align: justify;\"><b>Xem th\u00eam:<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/tam-giac-dong-dang-la-gi\/\">Tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng l\u00e0 g\u00ec? C\u00e1c tr\u01b0\u1eddng h\u1ee3p v\u00e0 t\u00ednh ch\u1ea5t<\/a><\/li>\n<li><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/uoc-so-la-gi\/\">\u01af\u1edbc s\u1ed1 l\u00e0 g\u00ec? C\u00e1ch t\u00ecm \u01b0\u1edbc, \u01b0\u1edbc chung v\u00e0 \u01b0\u1edbc chung l\u1edbn nh\u1ea5t<\/a><\/li>\n<\/ul>\n<p><script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t l\u00e0 g\u00ec?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t ch\u1ea5t r\u1eafn l\u00e0 p = F\/S, v\u1edbi F l\u00e0 \u00e1p l\u1ef1c (N) v\u00e0 S l\u00e0 di\u1ec7n t\u00edch b\u1ecb \u00e9p (m\u00b2); \u0111\u01a1n v\u1ecb \u00e1p su\u1ea5t l\u00e0 paxcan (Pa).\"}},{\"@type\":\"Question\",\"name\":\"\u00c1p su\u1ea5t l\u00e0 g\u00ec?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"\u00c1p su\u1ea5t l\u00e0 \u0111\u1ed9 l\u1edbn c\u1ee7a \u00e1p l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean m\u1ed9t \u0111\u01a1n v\u1ecb di\u1ec7n t\u00edch b\u1ecb \u00e9p.\"}},{\"@type\":\"Question\",\"name\":\"\u0110\u01a1n v\u1ecb c\u1ee7a \u00e1p su\u1ea5t l\u00e0 g\u00ec?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"L\u00e0 paxcan (Pa); 1 Pa = 1 N\/m\u00b2. Ngo\u00e0i ra c\u00f2n c\u00f3 kPa, bar, atm v\u00e0 mmHg.\"}},{\"@type\":\"Question\",\"name\":\"C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng th\u1ebf n\u00e0o?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"\u00c1p su\u1ea5t ch\u1ea5t l\u1ecfng t\u00ednh b\u1eb1ng p = d \u00d7 h, v\u1edbi d l\u00e0 tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang c\u1ee7a ch\u1ea5t l\u1ecfng (N\/m\u00b3) v\u00e0 h l\u00e0 \u0111\u1ed9 s\u00e2u t\u00ednh t\u1eeb m\u1eb7t tho\u00e1ng (m).\"}},{\"@type\":\"Question\",\"name\":\"C\u00e1ch t\u00ednh \u00e1p l\u1ef1c v\u00e0 di\u1ec7n t\u00edch khi bi\u1ebft \u00e1p su\u1ea5t?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"T\u1eeb p = F\/S suy ra F = p \u00d7 S \u0111\u1ec3 t\u00ednh \u00e1p l\u1ef1c, v\u00e0 S = F \/ p \u0111\u1ec3 t\u00ednh di\u1ec7n t\u00edch b\u1ecb \u00e9p.\"}},{\"@type\":\"Question\",\"name\":\"V\u00ec sao dao s\u1eafc d\u1ec5 c\u1eaft h\u01a1n?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"V\u00ec l\u01b0\u1ee1i m\u1ecfng c\u00f3 di\u1ec7n t\u00edch nh\u1ecf, t\u1ea1o ra \u00e1p su\u1ea5t l\u1edbn v\u1edbi c\u00f9ng m\u1ed9t l\u1ef1c \u00e9p n\u00ean c\u1eaft d\u1ec5 h\u01a1n.\"}}]}\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t c\u01a1 b\u1ea3n nh\u1ea5t l\u00e0 p = F\/S, trong \u0111\u00f3 F l\u00e0 \u00e1p l\u1ef1c (\u0111\u01a1n v\u1ecb niut\u01a1n \u2013 N), S l\u00e0 di\u1ec7n t\u00edch b\u1ecb \u00e9p (\u0111\u01a1n v\u1ecb m\u00e9t vu\u00f4ng \u2013 m\u00b2) v\u00e0 \u00e1p su\u1ea5t p \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng paxcan (Pa). \u0110\u00e2y l\u00e0 ph\u1ea7n ki\u1ebfn th\u1ee9c tr\u1ecdng t\u00e2m c\u1ee7a V\u1eadt l\u00fd l\u1edbp [&hellip;]<\/p>\n","protected":false},"author":84,"featured_media":569383,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"c\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t","_yoast_wpseo_title":"\u00c1p su\u1ea5t l\u00e0 g\u00ec? C\u00f4ng th\u1ee9c p = F\/S v\u00e0 v\u00ed d\u1ee5","_yoast_wpseo_metadesc":"C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t p = F\/S v\u00e0 \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng p = d.h: \u0111\u1ecbnh ngh\u0129a, b\u1ea3ng \u0111\u01a1n v\u1ecb Pa, kPa, bar, atm c\u00f9ng v\u00ed d\u1ee5 c\u00f3 l\u1eddi gi\u1ea3i chi ti\u1ebft t\u1eebng b\u01b0\u1edbc cho l\u1edbp 8.","footnotes":""},"categories":[29235,3910,30453],"tags":[],"class_list":["post-567277","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goc-to-mo","category-kham-pha","category-kien-thuc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>\u00c1p su\u1ea5t l\u00e0 g\u00ec? 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