Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n
Ki\u1ebfn th\u1ee9c v\u1eadt l\u00fd t\u01b0\u1edfng ch\u1eebng nh\u01b0 kh\u00f4ng quan tr\u1ecdng \u0111\u1ed1i v\u1edbi nhi\u1ec1u ng\u01b0\u1eddi. Tuy nhi\u00ean, h\u1ecdc \u0111\u01b0\u1ee3c m\u00f4n h\u1ecdc n\u00e0y, c\u00e1c em s\u1ebd \u0111\u01b0\u1ee3c m\u1edf mang r\u1ea5t nhi\u1ec1u kh\u00eda c\u1ea1nh th\u1ef1c t\u1ebf. \u0110\u00f3 c\u0169ng ch\u00ednh l\u00e0 l\u00fd do m\u00e0 c\u00e1c em \u0111\u01b0\u1ee3c h\u1ecdc m\u00f4n V\u1eadt L\u00fd trong su\u1ea5t 2 c\u1ea5p h\u1ecdc trung h\u1ecdc v\u00e0 ph\u1ed5 th\u00f4ng. M\u1ed9t trong s\u1ed1 nh\u1eefng ch\u1ee7 \u0111\u1ec1 c\u00e1c em c\u1ea7n quan t\u00e2m \u1edf b\u1ed9 m\u00f4n v\u1eadt l\u00fd 8 \u0111\u00f3 ch\u00ednh l\u00e0 \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng b\u00ecnh th\u00f4ng nhau. \u0110\u00e2y l\u00e0 hai ki\u1ebfn th\u1ee9c \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u v\u00e0 gi\u1ea3ng d\u1ea1y song song nhau. Ch\u00fang ta h\u00e3y c\u00f9ng nhau t\u00ecm hi\u1ec3u v\u1ec1 ch\u1ee7 \u0111\u1ec1 n\u00e0y trong b\u00e0i vi\u1ebft h\u00f4m nay nh\u00e9!<\/p>\n\n\n\n
\u00c1p su\u1ea5t hai lo\u1ea1i ch\u1ea5t l\u1ecfng<\/p>\n\n\n\n
\u00c1p su\u1ea5t l\u00e0 g\u00ec?<\/p>\n\n\n\n
Tr\u01b0\u1edbc khi \u0111\u1ebfn v\u1edbi ch\u1ee7 \u0111\u1ec1 \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng, ch\u00fang ta c\u1ea7n ph\u1ea3i hi\u1ec3u nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n<\/a> v\u1ec1 \u00e1p su\u1ea5t. N\u1ebfu nh\u01b0 c\u00e1c em \u0111\u00e3 t\u00ecm hi\u1ec3u qua v\u1ec1 \u00e1p su\u1ea5t ch\u1eafc h\u1eb3n c\u00e1c em s\u1ebd hi\u1ec3u h\u01a1n v\u1ec1 \u0111i\u1ec1u n\u00e0y. \u00c1p su\u1ea5t \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a ch\u00ednh l\u00e0 \u0111\u1ed9 l\u1edbn c\u1ee7a \u00e1p l\u1ef1c b\u1ecb ch\u00e8n \u00e9p l\u00ean m\u1ed9t di\u1ec7n t\u00edch nh\u1ea5t \u0111\u1ecbnh. Trong \u0111\u00f3, \u00e1p l\u1ef1c l\u00e0 l\u1ef1c \u00e9p c\u00f3 ph\u01b0\u01a1ng vu\u00f4ng g\u00f3c v\u1edbi b\u1ec1 m\u1eb7t b\u1ecb \u00e9p. N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n h\u01a1n, \u00e1p su\u1ea5t \u0111\u01b0\u1ee3c sinh ra khi c\u00f3 m\u1ed9t l\u1ef1c t\u00e1c d\u1ee5ng vu\u00f4ng g\u00f3c b\u1ecb \u0111\u00e8 n\u00e9n l\u00ean m\u1ed9t b\u1ec1 m\u1eb7t nh\u1ea5t \u0111\u1ecbnh.<\/p>\n\n\n\n \u00c1p su\u1ea5t c\u00f3 th\u1ec3 x\u1ea3y ra trong m\u00f4i tr\u01b0\u1eddng ch\u1ea5t r\u1eafn, l\u1ecfng, kh\u00ed. \u0110\u00f3 ch\u00ednh l\u00e0 l\u00fd do v\u00ec sao, c\u00e1c em \u0111\u01b0\u1ee3c t\u00ecm hi\u1ec3u v\u1ec1 \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng b\u00ecnh th\u00f4ng nhau. \u00c1p su\u1ea5t ch\u1ea5t l\u1ecfng hay \u00e1p su\u1ea5t th\u00f4ng th\u01b0\u1eddng \u0111\u1ec1u \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng \u0111\u01a1n v\u1ecb N\/m2 hay Pa. \u0110\u00e2y l\u00e0 \u0111\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng qu\u1ed1c t\u1ebf d\u00f9ng cho \u0111\u1ed9 l\u1edbn c\u1ee7a \u00e1p su\u1ea5t. Tuy nhi\u00ean, \u1edf m\u1ed9t s\u1ed1 khu v\u1ef1c \u0111\u1ecba l\u00fd kh\u00e1c nhau ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01a1n v\u1ecb kh\u00e1c.<\/p>\n\n\n\n C\u00e1c em kh\u00f4ng c\u1ea7n ph\u1ea3i lo l\u1eafng qu\u00e1 nhi\u1ec1u v\u1ec1 v\u1ea5n \u0111\u1ec1 n\u00e0y. \u0110\u1ec1 b\u00e0i tr\u00ean l\u1edbp c\u1ee7a c\u00e1c em h\u1ea7u h\u1ebft ch\u1ec9 s\u1eed d\u1ee5ng N\/m2 ho\u1eb7c Pa. Ngo\u00e0i ra, trong th\u1ef1c t\u1ebf, c\u00e1c m\u00e1y \u0111o \u00e1p su\u1ea5t c\u0169ng \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t nhi\u1ec1u \u0111\u01a1n v\u1ecb. C\u00e1c em c\u1ea7n s\u1eed d\u1ee5ng th\u00ec c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i tr\u01b0\u1edbc khi \u0111o. K\u1ebft qu\u1ea3 t\u1eeb m\u00e1y \u0111o s\u1ebd l\u00e0 k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c v\u1edbi \u0111\u01a1n v\u1ecb \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb. \u00c1p su\u1ea5t ch\u1ea5t l\u1ecfng b\u00ecnh th\u00f4ng nhau l\u00e0 hai l\u00fd thuy\u1ebft \u0111\u01b0\u1ee3c \u0111i k\u00e8m v\u1edbi nhau \u0111\u1ec3 ti\u1ec7n v\u1eadn d\u1ee5ng. C\u00e1c em h\u00e3y t\u00ecm hi\u1ec3u k\u1ef9 trong c\u00e1c m\u1ee5c ti\u1ebfp theo c\u1ee7a b\u00e0i vi\u1ebft nh\u00e9!<\/p>\n\n\n\n \u00c1p su\u1ea5t ch\u1ea5t l\u1ecfng l\u00e0 g\u00ec?<\/p>\n\n\n\n Nh\u01b0 ch\u00fang ta \u0111\u00e3 bi\u1ebft, ch\u1ea5t l\u1ecfng lu\u00f4n ph\u1ea3i \u0111\u1ef1ng trong m\u1ed9t v\u1eadt c\u1ee9ng. Hay n\u00f3i c\u00e1ch kh\u00e1c, ch\u00fang ta th\u01b0\u1eddng \u0111\u1ef1ng ch\u1ea5t l\u1ecfng trong b\u00ecnh ho\u1eb7c c\u1ed1c, b\u00e1t,\u2026 Ch\u1ea5t l\u1ecfng s\u1ebd g\u00e2y ra m\u1ed9t \u00e1p l\u1ef1c l\u00ean th\u00e0nh b\u00ecnh. \u0110i\u1ec1u n\u00e0y c\u00f3 \u00fd ngh\u0129a l\u00e0, ch\u1ea5t l\u1ecfng s\u1ebd 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. \u0110\u00e2y ch\u00ednh l\u00e0 l\u00fd thuy\u1ebft gi\u1ea3i ngh\u0129a v\u1ec1 \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng.<\/p>\n\n\n\n Ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, khi ch\u00fang ta \u0111\u1ed5 n\u01b0\u1edbc v\u00e0o m\u1ed9t c\u00e1i chai. N\u01b0\u1edbc s\u1ebd tr\u00e0n \u0111\u1ebfn m\u1ecdi ng\u00f3c ng\u00e1ch c\u1ee7a chai ph\u1ea7n c\u00f3 ch\u1ee9a n\u01b0\u1edbc. Nh\u01b0 v\u1eadt, n\u01b0\u1edbc s\u1ebd t\u1ea1o l\u00ean m\u1ed9t \u00e1p su\u1ea5t l\u00ean th\u00e0nh chai, \u0111\u00e1y chai theo m\u1ecdi ph\u01b0\u01a1ng, h\u01b0\u1edbng. Ngo\u00e0i ra, n\u1ebfu ch\u00fang ta th\u1ea3 m\u1ed9t h\u00f2n s\u1ecfi nh\u1ecf v\u00e0o chai n\u00e0y. Th\u00ec khi h\u00f2n s\u1ecfi ch\u00ecm xu\u1ed1ng \u0111\u00e1y. N\u01b0\u1edbc c\u0169ng g\u00e2y \u00e1p su\u1ea5t l\u00ean h\u00f2n s\u1ecfi \u0111\u00f3 theo m\u1ecdi ph\u01b0\u01a1ng h\u01b0\u1edbng. \u00c1p su\u1ea5t ch\u1ea5t l\u1ecfng b\u00ecnh th\u00f4ng nhau c\u0169ng v\u00ec th\u1ebf m\u00e0 \u0111\u01b0\u1ee3c t\u00ecm hi\u1ec3u c\u00f9ng nhau.<\/p>\n\n\n\n C\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng b\u00ecnh th\u00f4ng nhau<\/p>\n\n\n\n Kh\u00e1c v\u1edbi \u00e1p su\u1ea5t th\u00f4ng th\u01b0\u1eddng, \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o ch\u1ea5t l\u1ecfng \u0111\u00f3 l\u00e0 g\u00ec. \u0110\u1ec3 t\u00ednh \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng ng\u01b0\u1eddi ta d\u00f9ng c\u00f4ng th\u1ee9c ri\u00eang bi\u1ec7t. C\u00e1c em c\u1ea7n nh\u1edb c\u00f4ng th\u1ee9c n\u00e0y \u0111\u1ec3 v\u1eadn d\u1ee5ng t\u00ednh to\u00e1n ch\u00ednh x\u00e1c h\u01a1n. C\u00f4ng th\u1ee9c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y nh\u01b0 sau:<\/p>\n\n\n\n p=d.h<\/p>\n\n\n\n Trong \u0111\u00f3:<\/p>\n\n\n\n p: l\u00e0 k\u00fd hi\u1ec7u c\u1ee7a \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng. \u0110\u01a1n v\u1ecb \u0111o c\u1ee7a p ch\u00ednh l\u00e0 N\/m2 hay Pa (Pascal).<\/p>\n\n\n\n d: l\u00e0 tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang c\u1ee7a ch\u1ea5t l\u1ecfng. T\u00f9y thu\u1ed9c v\u00e0o ch\u1ea5t l\u1ecfng c\u1ea7n t\u00ednh \u00e1p su\u1ea5t l\u00e0 g\u00ec th\u00ec d s\u1ebd l\u00e0 c\u1ee7a ch\u1ea5t \u0111\u00f3. V\u00ed d\u1ee5 d c\u1ee7a n\u01b0\u1edbc s\u1ebd kh\u00e1c v\u1edbi d c\u1ee7a d\u1ea7u. Khi l\u00e0m b\u00e0i c\u00e1c em n\u00ean ch\u00fa \u00fd \u0111\u1ebfn d c\u1ee7a ch\u1ea5t l\u1ecfng. Th\u00f4ng th\u01b0\u1eddng, \u0111\u1ec1 b\u00e0i s\u1ebd cho s\u1eb5n d c\u1ee7a ch\u1ea5t l\u1ecfng c\u1ea7n t\u00ednh. M\u1ed9t s\u1ed1 d\u1ea1ng b\u00e0i n\u00e2ng cao, ng\u01b0\u1eddi ta s\u1ebd cho g\u1ee3i \u00fd \u0111\u1ec3 t\u00ednh d ch\u1ea5t l\u1ecfng. Sau \u0111\u00f3 c\u00e1c em m\u1edbi c\u00f3 th\u1ec3 l\u1eafp v\u00e0o c\u00f4ng th\u1ee9c n\u00e0y. \u0110\u01a1n v\u1ecb c\u1ee7a d l\u00e0 N\/m3.<\/p>\n\n\n\n h: l\u00e0 chi\u1ec1u cao c\u1ee7a c\u1ed9t ch\u1ea5t l\u1ecfng. Khi c\u00e1c em l\u00e0m b\u00e0i t\u1eadp, ch\u1ea5t l\u1ecfng th\u01b0\u1eddng s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1ed5 v\u00e0o b\u00ecnh. h ch\u00ednh l\u00e0 chi\u1ec1u cao c\u1ee7a c\u1ed9t ch\u1ea5t l\u1ecfng n\u00e0y. C\u00e1c em n\u00ean x\u00e1c \u0111\u1ecbnh \u0111\u00fang \u0111\u1ec3 t\u00ednh to\u00e1n ch\u00ednh x\u00e1c h\u01a1n. V\u1edbi nh\u1eefng b\u00e0i t\u1eadp kh\u00f3, c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p 2 ch\u1ea5t l\u1ecfng kh\u00f4ng h\u00f2a tan. C\u00e1c em ph\u1ea3i x\u00e1c \u0111\u1ecbnh h c\u1ee7a t\u1eebng ch\u1ea5t l\u1ecfng \u0111\u1ec3 t\u00ednh to\u00e1n.<\/p>\n\n\n\n C\u00f4ng th\u1ee9c n\u00e0y c\u0169ng \u00e1p d\u1ee5ng cho m\u1ed9t \u0111i\u1ec3m b\u1ea5t k\u00ec trong l\u00f2ng ch\u1ea5t l\u1ecfng. Chi\u1ec1u cao c\u1ee7a c\u1ed9t ch\u1ea5t l\u1ecfng c\u0169ng l\u00e0 \u0111\u1ed9 s\u00e2u c\u1ee7a \u0111i\u1ec3m \u0111\u00f3 so v\u1edbi m\u1eb7t tho\u00e1ng. Trong m\u1ed9t ch\u1ea5t l\u1ecfng \u0111\u1ee9ng y\u00ean, \u00e1p su\u1ea5t t\u1ea1i nh\u1eefng \u0111i\u1ec3m tr\u00ean c\u00f9ng m\u1ed9t m\u1eb7t ph\u1eb3ng n\u1eb1m ngang (c\u00f3 c\u00f9ng \u0111\u1ed9 s\u00e2u h) c\u00f3 \u0111\u1ed9 l\u1edbn nh\u01b0 nhau.<\/p>\n\n\n\n C\u00e1c d\u1ea1ng \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng b\u00ecnh th\u00f4ng nhau<\/p>\n\n\n\n B\u00ecnh th\u00f4ng nhau l\u00e0 g\u00ec?<\/p>\n\n\n\n Gi\u1ed1ng nh\u01b0 t\u00ean g\u1ecdi c\u1ee7a b\u00ecnh. B\u00ecnh th\u00f4ng nhau l\u00e0 chi\u1ebfc b\u00ecnh c\u00f3 hai nh\u00e1nh th\u00f4ng \u0111\u00e1y v\u1edbi nhau. Chi\u1ebfc b\u00ecnh n\u00e0y c\u0169ng c\u00f3 r\u1ea5t nhi\u1ec1u nh\u1eefng l\u00fd thuy\u1ebft v\u1ec1 \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng li\u00ean quan. Ch\u00ednh v\u00ec v\u1eady, trong ch\u01b0\u01a1ng tr\u00ecnh v\u1eadt l\u00fd l\u1edbp 8 c\u1ee7a c\u00e1c em, hai ch\u1ee7 \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c h\u1ecdc c\u00f9ng nhau. \u00c1p su\u1ea5t ch\u1ea5t l\u1ecfng b\u00ecnh th\u00f4ng nhau c\u00f3 nh\u1eefng \u0111i\u1ec1u c\u1ea7n ch\u00fa \u00fd sau \u0111\u00e2y:<\/p>\n\n\n\n Trong b\u00ecnh th\u00f4ng nhau ch\u1ee9a c\u00f9ng m\u1ed9t ch\u1ea5t l\u1ecfng \u0111\u1ee9ng y\u00ean, c\u00e1c m\u1eb7t tho\u00e1ng c\u1ee7a ch\u1ea5t l\u1ecfng \u1edf c\u00e1c nh\u00e1nh kh\u00e1c nhau \u0111\u1ec1u \u1edf c\u00f9ng m\u1ed9t \u0111\u1ed9 cao.<\/p>\n\n\n\n Trong b\u00ecnh th\u00f4ng nhau ch\u1ee9a c\u00f9ng m\u1ed9t ch\u1ea5t l\u1ecfng \u0111\u1ee9ng y\u00ean, \u00e1p su\u1ea5t t\u1ea1i c\u00e1c \u0111i\u1ec3m \u1edf tr\u00ean c\u00f9ng m\u1eb7t ph\u1eb3ng ngang \u0111\u1ec1u b\u1eb1ng nhau.<\/p>\n\n\n\n Tuy nhi\u00ean \u0111i\u1ec1u n\u00e0y ch\u1ec9 \u0111\u00fang khi trong b\u00ecnh th\u00f4ng nhau c\u00f9ng ch\u1ee9a m\u1ed9t ch\u1ea5t l\u1ecfng. Trong tr\u01b0\u1eddng h\u1ee3p kh\u00e1c, b\u00ecnh th\u00f4ng nhau c\u00f3 ch\u1ee9a 2 ch\u1ea5t l\u1ecfng tr\u1edf l\u00ean th\u00ec \u0111i\u1ec1u n\u00e0y kh\u00f4ng c\u00f2n \u0111\u00fang n\u1eefa.<\/p>\n\n\n\n B\u00e0i t\u1eadp \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng b\u00ecnh th\u00f4ng nhau<\/p>\n\n\n\n \u1ee8ng d\u1ee5ng c\u1ee7a \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng b\u00ecnh th\u00f4ng nhau<\/p>\n\n\n\n \u1ee8ng d\u1ee5ng c\u01a1 b\u1ea3n c\u1ee7a \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng b\u00ecnh th\u00f4ng nhau \u0111\u00f3 ch\u00ednh l\u00e0 m\u00e1y \u00e9p ch\u1ea5t l\u1ecfng. Khi t\u00e1c d\u1ee5ng m\u1ed9t l\u1ef1c f l\u00ean pitt\u00f4ng nh\u1ecf c\u00f3 di\u1ec7n t\u00edch s, l\u1ef1c n\u00e0y g\u00e2y \u00e1p su\u1ea5t p = f\/s l\u00ean ch\u1ea5t l\u1ecfng. \u00c1p su\u1ea5t n\u00e0y \u0111\u01b0\u1ee3c ch\u1ea5t l\u1ecfng truy\u1ec1n \u0111i nguy\u00ean v\u1eb9n theo m\u1ecdi h\u01b0\u1edbng t\u1edbi pitt\u00f4ng l\u1edbn c\u00f3 di\u1ec7n t\u00edch S v\u00e0 g\u00e2y ra l\u1ef1c n\u00e2ng F l\u00ean pitt\u00f4ng n\u00e0y. \u0110\u1ec3 hi\u1ec3u h\u01a1n v\u1ec1 \u0111i\u1ec1u n\u00e0y, c\u00e1c em n\u00ean t\u00ecm hi\u1ec3u tr\u00ean l\u1edbp th\u00f4ng qua th\u00ed nghi\u1ec7m th\u1ef1c t\u1ebf. T\u1eeb th\u00ed nghi\u1ec7m c\u00e1c em c\u0169ng c\u00f3 th\u1ec3 r\u00fat ra \u0111\u01b0\u1ee3c c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y \u00e9p ch\u1ea5t l\u1ecfng. C\u00f4ng th\u1ee9c m\u00e1y \u00e9p d\u00f9ng ch\u1ea5t l\u1ecfng: F\/f = S\/s.<\/p>\n\n\n\n \u0110\u1ed1i v\u1edbi c\u00e1c b\u00e0i t\u1eadp t\u00ednh to\u00e1n \u0111\u1ed9 l\u1edbn c\u1ee7a t\u00e1c d\u1ee5ng l\u1ef1c, c\u00e1c em s\u1ebd ph\u1ea3i s\u1eed d\u1ee5ng nhi\u1ec1u \u0111\u1ebfn c\u00f4ng th\u1ee9c n\u00e0y. C\u00e1c em h\u00e3y ghi ch\u00e9p v\u00e0 s\u1eed d\u1ee5ng nhi\u1ec1u \u0111\u1ec3 v\u1eadn d\u1ee5ng ch\u00ednh x\u00e1c h\u01a1n nh\u00e9! D\u1ea1ng b\u00e0i t\u1eadp c\u00f3 \u0111\u1ed9 kh\u00f3 t\u0103ng d\u1ea7n. Tuy nhi\u00ean \u0111\u1ec1 b\u00e0i s\u1ebd cho c\u00e1c em g\u1ee3i \u00fd \u0111\u1ec3 t\u00ecm ra c\u00e1c \u1ea9n s\u1ed1. T\u1eeb \u0111\u00f3 thay v\u00e0o c\u00f4ng th\u1ee9c chung \u0111\u1ec3 t\u00ednh to\u00e1n ra y\u00eau c\u1ea7u c\u1ee7a \u0111\u1ec1 b\u00e0i. B\u00e0i t\u1eadp c\u1ee7a ch\u1ee7 \u0111\u1ec1 \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng b\u00ecnh th\u00f4ng nhau \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 b\u00e0i t\u1eadp v\u1eeba v\u00e0 kh\u00f3.<\/p>\n\n\n\n C\u00f3 th\u1ec3 n\u00f3i, nh\u1eefng ki\u1ebfn th\u1ee9c v\u1ec1 \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng b\u00ecnh th\u00f4ng nhau \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u00fang t\u00f4i \u0111\u1ec1 c\u1eadp tr\u00ean \u0111\u00e2y. Hy v\u1ecdng nh\u1eefng th\u00f4ng tin n\u00e0y c\u00f3 th\u1ec3 gi\u00fap \u00edch cho c\u00e1c em trong qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp<\/a>. Nh\u1eefng b\u00e0i thi c\u1ee7a c\u00e1c em c\u00f3 th\u1ec3 s\u1ebd c\u00f3 c\u00e2u h\u1ecfi v\u1ec1 ch\u1ee7 \u0111\u1ec1 n\u00e0y. C\u00e1c em n\u00ean ghi ch\u00e9p v\u00e0 nh\u1edb nh\u1eefng c\u00f4ng th\u1ee9c ch\u00fang t\u00f4i \u0111\u00e3 n\u00eau ph\u00eda tr\u00ean \u0111\u1ec3 l\u00e0m b\u00e0i t\u1eadp.<\/p>\n\n\n\n L\u1eddi gi\u1ea3i \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng<\/p>\n\n\n\n C\u1ea3m \u01a1n c\u00e1c em \u0111\u00e3 \u0111\u00f3n \u0111\u1ecdc b\u00e0i vi\u1ebft h\u00f4m nay. Ngo\u00e0i ra, ch\u00fang t\u00f4i c\u00f2n c\u00f3 r\u1ea5t nhi\u1ec1u b\u00e0i vi\u1ebft kh\u00e1c v\u1ec1 ch\u1ee7 \u0111\u1ec1u v\u1eadt l\u00fd 8. C\u00e1c em c\u00f3 th\u1ec3 tham kh\u1ea3o ngay b\u00e0i \u00e1p su\u1ea5t l\u00e0 g\u00ec. Ho<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":" Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn Ki\u1ebfn th\u1ee9c v\u1eadt l\u00fd t\u01b0\u1edfng ch\u1eebng nh\u01b0 kh\u00f4ng quan tr\u1ecdng \u0111\u1ed1i v\u1edbi nhi\u1ec1u ng\u01b0\u1eddi. Tuy nhi\u00ean, h\u1ecdc \u0111\u01b0\u1ee3c m\u00f4n h\u1ecdc n\u00e0y, c\u00e1c em s\u1ebd \u0111\u01b0\u1ee3c m\u1edf mang r\u1ea5t nhi\u1ec1u kh\u00eda c\u1ea1nh th\u1ef1c t\u1ebf. \u0110\u00f3 c\u0169ng ch\u00ednh l\u00e0 l\u00fd do m\u00e0 c\u00e1c em \u0111\u01b0\u1ee3c h\u1ecdc m\u00f4n V\u1eadt L\u00fd trong su\u1ea5t […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[4,7],"tags":[],"class_list":["post-1247","post","type-post","status-publish","format-standard","hentry","category-trung-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1247","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=1247"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1247\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=1247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=1247"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=1247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}