{"id":21311,"date":"2025-07-08T06:40:52","date_gmt":"2025-07-07T23:40:52","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=21311"},"modified":"2025-07-11T04:35:28","modified_gmt":"2025-07-10T21:35:28","slug":"tim-hieu-trong-luc-la-gi-cong-thuc-tinh-trong-luc-la-gi","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/tim-hieu-trong-luc-la-gi-cong-thuc-tinh-trong-luc-la-gi\/","title":{"rendered":"T\u00ecm hi\u1ec3u tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec? C\u00f4ng th\u1ee9c t\u00ednh tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ckconitsha.com\/vn\/tim-hieu-trong-luc-la-gi-cong-thuc-tinh-trong-luc-la-gi\/#Trong_luc_la_gi\" >Tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/tim-hieu-trong-luc-la-gi-cong-thuc-tinh-trong-luc-la-gi\/#Thanh_le_la_gi\" >Th\u00e1nh l\u1ec5 l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/tim-hieu-trong-luc-la-gi-cong-thuc-tinh-trong-luc-la-gi\/#Trong_luc_la_gi-2\" >Tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/tim-hieu-trong-luc-la-gi-cong-thuc-tinh-trong-luc-la-gi\/#Trong_luc_la_gi-3\" >Tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/tim-hieu-trong-luc-la-gi-cong-thuc-tinh-trong-luc-la-gi\/#Lam_the_nao_va_kich_thuoc_cua_trong_luc\" >L\u00e0m th\u1ebf n\u00e0o v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a tr\u1ecdng l\u1ef1c<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/tim-hieu-trong-luc-la-gi-cong-thuc-tinh-trong-luc-la-gi\/#Trong_luong_cua_doi_tuong\" >Tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/tim-hieu-trong-luc-la-gi-cong-thuc-tinh-trong-luc-la-gi\/#Trong_luc_la_gi-4\" >Tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/tim-hieu-trong-luc-la-gi-cong-thuc-tinh-trong-luc-la-gi\/#Phan_biet_trong_luc_va_trong_luong\" >Ph\u00e2n bi\u1ec7t tr\u1ecdng l\u1ef1c v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.ckconitsha.com\/vn\/tim-hieu-trong-luc-la-gi-cong-thuc-tinh-trong-luc-la-gi\/#Vai_tro_cua_trong_luc_doi_voi_trai_dat\" >Vai tr\u00f2 c\u1ee7a tr\u1ecdng l\u1ef1c \u0111\u1ed1i v\u1edbi tr\u00e1i \u0111\u1ea5t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.ckconitsha.com\/vn\/tim-hieu-trong-luc-la-gi-cong-thuc-tinh-trong-luc-la-gi\/#Cong_thuc_tinh_trong_luc\" >C\u00f4ng th\u1ee9c t\u00ednh tr\u1ecdng l\u1ef1c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.ckconitsha.com\/vn\/tim-hieu-trong-luc-la-gi-cong-thuc-tinh-trong-luc-la-gi\/#Cau_hoi_bai_tap_trong_luc\" >C\u00e2u h\u1ecfi &amp; b\u00e0i t\u1eadp tr\u1ecdng l\u1ef1c<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p dir=\"ltr\">B\u1ea1n c\u00f3 bi\u1ebft t\u1ea1i sao khi ch\u00fang ta th\u1ea3 m\u1ed9t v\u1eadt th\u1ec3 trong tay, n\u00f3 r\u01a1i xu\u1ed1ng? T\u1ea1i sao b\u1ea1n l\u1ea1i nh\u1ea3y xu\u1ed1ng \u0111\u1ea5t m\u1ed7i l\u1ea7n? \u0110\u00f3 l\u00e0 do tr\u1ecdng l\u1ef1c c\u1ee7a tr\u00e1i \u0111\u1ea5t. V\u00ec v\u1eady, h\u00f4m nay, kh\u1ec9 s\u1ebd t\u00ecm ra tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec? Tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 bu\u1ed5i chi\u1ec1u l\u00e0 bao nhi\u00eau? Tr\u1ecdng l\u01b0\u1ee3ng l\u00e0 bao nhi\u00eau? C\u00f4ng th\u1ee9c cho tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec? Ngo\u00e0i ra, ch\u00fang t\u00f4i c\u0169ng t\u00ecm hi\u1ec3u v\u1ec1 t\u1ea7m quan tr\u1ecdng c\u1ee7a tr\u1ecdng l\u1ef1c v\u00e0 tr\u1ea3 l\u1eddi m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp li\u00ean quan. <\/p>\n<p>                                    <img decoding=\"async\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/image\/600x480.png\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Trong_luc_la_gi\"><\/span>Tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 hi\u1ec3u tr\u1ecdng l\u1ef1c \u0111\u1ea7u ti\u00ean l\u00e0 g\u00ec, h\u00e3y b\u1eaft \u0111\u1ea7u h\u1ecdc v\u00e0 xem x\u00e9t ki\u1ebfn \u200b\u200bth\u1ee9c? <\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Thanh_le_la_gi\"><\/span>Th\u00e1nh l\u1ec5 l\u00e0 g\u00ec? <span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/trong-luc-la-gi-1.jpg\" alt=\"Kh\u1ed1i l\u01b0\u1ee3ng l\u00e0 th\u01b0\u1edbc \u0111o ch\u1ea5t c\u1ee7a m\u1ed9t v\u1eadt th\u1ec3. (\u1ea2nh: Canva.com)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5, tr\u00ean g\u00f3i mu\u1ed1i, c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng m\u1ea1ng l\u00e0 100g, s\u1ed1 l\u01b0\u1ee3ng ph\u00e9p \u0111o ch\u1ec9 c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a g\u00f3i mu\u1ed1i ho\u1eb7c l\u01b0\u1ee3ng mu\u1ed1i c\u00f3 trong t\u00fai? <\/p>\n<p dir=\"ltr\">C\u00e2u tr\u1ea3 l\u1eddi l\u00e0, 100 g l\u00e0 tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a mu\u1ed1i trong t\u00fai. <\/p>\n<p dir=\"ltr\">T\u01b0\u01a1ng t\u1ef1 tr\u00ean m\u1ed9t t\u00fai c\u00f3 5 kg, con s\u1ed1 \u0111\u00f3 ch\u1ec9 ra g\u00ec? \u0110\u00f3 l\u00e0, 5 kg l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a \u0111\u01b0\u1eddng trong t\u00fai, n\u1eb7ng 5 kg. <\/p>\n<p dir=\"ltr\">V\u00ec v\u1eady, ch\u00fang t\u00f4i c\u00f3 \u0111\u1ecbnh ngh\u0129a v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng nh\u01b0 sau: <em>Kh\u1ed1i l\u01b0\u1ee3ng l\u00e0 th\u01b0\u1edbc \u0111o ch\u1ea5t c\u1ee7a m\u1ed9t v\u1eadt th\u1ec3. (Khi kh\u00f4ng t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng bao b\u00ec, kh\u1ed1i l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 tr\u1ecdng l\u01b0\u1ee3ng r\u00f2ng) <\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Trong_luc_la_gi-2\"><\/span>Tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec? <span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/trong-luc-la-gi-2.jpg\" alt=\"Tr\u1ecdng l\u1ef1c, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111i\u1ec3m thu h\u00fat c\u1ee7a Tr\u00e1i \u0111\u1ea5t. (\u1ea2nh: Canva.com)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Ti\u1ebfp theo, ch\u00fang ta c\u1ea7n t\u00ecm hi\u1ec3u tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec? T\u1ea1i sao tr\u1ecdng l\u1ef1c li\u00ean quan \u0111\u1ebfn kh\u1ed1i l\u01b0\u1ee3ng? <\/p>\n<p dir=\"ltr\">Ch\u1eafc ch\u1eafn m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u nghe c\u00e2u chuy\u1ec7n v\u1ec1 qu\u1ea3 t\u00e1o c\u1ee7a nh\u00e0 khoa h\u1ecdc Newton. Khi r\u01a1i ra kh\u1ecfi nh\u00e1nh c\u00e2y t\u00e1o r\u01a1i xu\u1ed1ng \u0111\u1ea5t. K\u1ec3 t\u1eeb \u0111\u00f3, Newton ph\u00e1t hi\u1ec7n ra &#8220;tr\u1ecdng l\u1ef1c&#8221;. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 qu\u1ea3 t\u00e1o r\u01a1i xu\u1ed1ng \u0111\u1ea5t do tr\u00e1i \u0111\u1ea5t thu h\u00fat m\u1ed9t l\u1ef1c l\u01b0\u1ee3ng t\u00e1o, hay n\u00f3i c\u00e1ch kh\u00e1c, l\u1ef1c h\u00fat c\u1ee7a tr\u00e1i \u0111\u1ea5t thay \u0111\u1ed5i t\u1ed1c \u0111\u1ed9 c\u1ee7a qu\u1ea3 t\u00e1o. <\/p>\n<p dir=\"ltr\">Ch\u00fang t\u00f4i c\u00f3 \u0111\u1ecbnh ngh\u0129a sau: <\/p>\n<p dir=\"ltr\"><em>T\u1ea5t c\u1ea3 m\u1ecdi th\u1ee9 v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ec1u b\u1ecb thu h\u00fat 1 l\u1ef1c. \u0110i\u1ec3m thu h\u00fat n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 tr\u1ecdng l\u1ef1c<\/em> <\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Trong_luc_la_gi-3\"><\/span>Tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec? <span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/trong-luc-la-gi-4.jpg\" alt=\"Tr\u1ecdng l\u1ef1c l\u00e0 \u0111i\u1ec3m thu h\u00fat c\u1ee7a tr\u00e1i \u0111\u1ea5t. (\u1ea2nh: Canva.com)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Xem x\u00e9t tr\u01b0\u1eddng h\u1ee3p \u0111\u1ea7u ti\u00ean: treo tr\u00e1i c\u00e2y n\u1eb7ng v\u00e0o 1 m\u00f9a xu\u00e2n. Ch\u00fang t\u00f4i quan s\u00e1t r\u1eb1ng m\u00f9a xu\u00e2n \u0111\u01b0\u1ee3c k\u00e9o d\u00e0i ra. L\u00fd do g\u00e2y ra bi\u1ebfn d\u1ea1ng l\u00e0 do s\u1ef1 h\u1ea5p d\u1eabn c\u1ee7a tr\u00e1i \u0111\u1ea5t \u0111\u00e3 l\u00e0m vi\u1ec7c tr\u00ean c\u00e1c lo\u1ea1i tr\u00e1i c\u00e2y n\u1eb7ng. <\/p>\n<p dir=\"ltr\">Tr\u01b0\u1eddng h\u1ee3p 2: Th\u1ea3 b\u00fat trong tay b\u1ea1n \u1edf \u0111\u1ed9 cao 1m, b\u00fat s\u1ebd di chuy\u1ec3n xu\u1ed1ng \u0111\u1ea5t. B\u1edfi v\u00ec b\u00fat c\u0169ng ch\u1ecbu t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c h\u00fat c\u1ee7a tr\u00e1i \u0111\u1ea5t. <\/p>\n<p dir=\"ltr\">Th\u00f4ng qua hai v\u00ed d\u1ee5 tr\u00ean, ch\u00fang ta c\u00f3 th\u1ec3 k\u1ebft lu\u1eadn: <em>L\u1ef1c m\u00e0 tr\u00e1i \u0111\u1ea5t t\u00e1c d\u1ee5ng l\u00ean v\u1eadt ch\u00ednh l\u00e0 tr\u1ecdng l\u1ef1c, ho\u1eb7c \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 tr\u1ecdng l\u1ef1c <\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Lam_the_nao_va_kich_thuoc_cua_trong_luc\"><\/span>L\u00e0m th\u1ebf n\u00e0o v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a tr\u1ecdng l\u1ef1c <span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Ch\u00fang ta \u0111\u1ec1u bi\u1ebft, m\u1ecdi l\u1ef1c khi h\u00e0nh \u0111\u1ed9ng tr\u00ean m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 h\u01b0\u1edbng c\u1ee7a l\u1ef1c \u0111\u00f3. V\u1eady h\u01b0\u1edbng v\u00e0 h\u01b0\u1edbng c\u1ee7a tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec? <\/p>\n<p dir=\"ltr\">Tr\u1ecdng l\u1ef1c c\u00f3: <\/p>\n<ul>\n<li dir=\"ltr\">Th\u1eb3ng \u0111\u1ee9ng <\/li>\n<li dir=\"ltr\">Bu\u1ed5i chi\u1ec1u: T\u1eeb tr\u00ean xu\u1ed1ng (v\u1ec1 ph\u00eda tr\u00e1i \u0111\u1ea5t) <\/li>\n<li dir=\"ltr\">\u0110\u1ed9 l\u1edbn tr\u1ecdng l\u1ef1c: b\u1eb1ng tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng<\/li>\n<\/ul>\n<p>Xem th\u00eam: [V\u1eadt l\u00fd 6] Ki\u1ebfn th\u1ee9c v\u1ec1 l\u1ef1c \u0111\u00e0n h\u1ed3i c\u1ee7a m\u00f9a xu\u00e2n chi ti\u1ebft \u0111\u1ea7y \u0111\u1ee7 nh\u1ea5t<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Trong_luong_cua_doi_tuong\"><\/span>Tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng <span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Ch\u00fang ta th\u1ea5y r\u1eb1ng l\u1ef1c c\u1ee7a tr\u00e1i \u0111\u1ea5t t\u00e1c \u0111\u1ed9ng l\u00ean v\u1eadt th\u1ec3 l\u00e0 tr\u1ecdng l\u1ef1c, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 tr\u1ecdng l\u1ef1c. <\/p>\n<p dir=\"ltr\">Tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng ch\u00ednh l\u00e0 \u0111\u1ed9 l\u1edbn c\u1ee7a tr\u1ecdng l\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00f3 <\/p>\n<p dir=\"ltr\">Bi\u1ec3u t\u01b0\u1ee3ng tr\u1ecdng l\u01b0\u1ee3ng l\u00e0 P<\/p>\n<p dir=\"ltr\">\u0110\u01a1n v\u1ecb tr\u1ecdng l\u01b0\u1ee3ng ho\u1eb7c \u0111\u01a1n v\u1ecb \u0111o tr\u1ecdng l\u1ef1c l\u00e0 Newton, \u0111\u01b0\u1ee3c t\u01b0\u1ee3ng tr\u01b0ng l\u00e0 N. <\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: Tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a tr\u1ecdng l\u01b0\u1ee3ng 100g l\u00e0 1 N <\/p>\n<p dir=\"ltr\">* L\u01b0u \u00fd: Tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a v\u1eadt th\u1ec3 ph\u1ee5 thu\u1ed9c v\u00e0o v\u1ecb tr\u00ed c\u1ee7a v\u1eadt th\u1ec3 tr\u00ean tr\u00e1i \u0111\u1ea5t, v\u00ec tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a v\u1eadt th\u1ec3 s\u1ebd gi\u1ea3m cao (do s\u1ef1 gi\u1ea3m s\u1ee9c h\u00fat c\u1ee7a Tr\u00e1i \u0111\u1ea5t khi t\u0103ng) v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng kh\u00f4ng thay \u0111\u1ed5i. <\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Trong_luc_la_gi-4\"><\/span>Tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/trong-luc-la-gi-5.jpg\" alt=\"Tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec? (\u1ea2nh: Canva.com)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Tr\u1ecdng l\u1ef1c l\u00e0 kh\u00f4ng gian m\u00e0 c\u00e1c v\u1eadt th\u1ec3 \u1edf d\u01b0\u1edbi s\u1ef1 h\u1ea5p d\u1eabn c\u1ee7a tr\u00e1i \u0111\u1ea5t <\/p>\n<p dir=\"ltr\">Gia t\u1ed1c tr\u1ecdng l\u1ef1c l\u00e0 gia t\u1ed1c do tr\u1ecdng l\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean 1 v\u1eadt. <\/p>\n<p dir=\"ltr\">T\u1ea1i c\u00e1c \u0111i\u1ec3m kh\u00e1c nhau tr\u00ean Tr\u00e1i \u0111\u1ea5t, c\u00e1c v\u1eadt th\u1ec3 r\u01a1i v\u1edbi gia t\u1ed1c trong kho\u1ea3ng t\u1eeb 9,78 \u0111\u1ebfn 9,83 m\/s2 t\u00f9y thu\u1ed9c v\u00e0o chi\u1ec1u cao. <\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Phan_biet_trong_luc_va_trong_luong\"><\/span>Ph\u00e2n bi\u1ec7t tr\u1ecdng l\u1ef1c v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 ph\u00e2n bi\u1ec7t tr\u1ecdng l\u1ef1c v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng, ch\u00fang t\u00f4i d\u1ef1a v\u00e0o c\u00e1c kh\u00e1i ni\u1ec7m c\u1ee7a h\u1ecd \u0111\u1ec3 ph\u00e2n bi\u1ec7t. <\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Tr\u1ecdng l\u1ef1c l\u00e0 tr\u1ecdng l\u1ef1c, \u0111i\u1ec3m thu h\u00fat c\u1ee7a tr\u00e1i \u0111\u1ea5t tr\u00ean 1 v\u1eadt <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Tr\u1ecdng l\u01b0\u1ee3ng l\u00e0 \u0111\u1ed9 l\u1edbn c\u1ee7a tr\u1ecdng l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean \u0111\u1ed1i t\u01b0\u1ee3ng <\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">\u0110\u1ec3 ghi nh\u1edb nhanh ch\u00f3ng, ch\u00fang ta c\u00f3 th\u1ec3 ph\u00e2n bi\u1ec7t hai kh\u00e1i ni\u1ec7m d\u1ef1a tr\u00ean hai \u00fd t\u01b0\u1edfng ch\u00ednh sau \u0111\u00e2y<\/p>\n<p dir=\"ltr\">Ch\u00fang t\u00f4i lu\u00f4n n\u00f3i &#8220;Tr\u1ecdng l\u1ef1c h\u00e0nh \u0111\u1ed9ng tr\u00ean c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng&#8221; v\u00e0 &#8220;Tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng&#8221;<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Vai_tro_cua_trong_luc_doi_voi_trai_dat\"><\/span>Vai tr\u00f2 c\u1ee7a tr\u1ecdng l\u1ef1c \u0111\u1ed1i v\u1edbi tr\u00e1i \u0111\u1ea5t <span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/trong-luc-la-gi-6.jpg\" alt=\"M\u1ecdi th\u1ee9 s\u1ebd kh\u00f4ng c\u00f2n \u0111\u1ee9ng khi tr\u1ecdng l\u1ef1c bi\u1ebfn m\u1ea5t. (\u1ea2nh: Canva.com)\" width=\"100%\"><\/p>\n<p dir=\"ltr\"><em>\u0110i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra khi tr\u1ecdng l\u1ef1c ho\u1eb7c s\u1ef1 h\u1ea5p d\u1eabn c\u1ee7a tr\u00e1i \u0111\u1ea5t bi\u1ebfn m\u1ea5t.<\/em><\/p>\n<p dir=\"ltr\">C\u00f3 ph\u1ea3i qu\u1ea3 t\u00e1o r\u01a1i xu\u1ed1ng \u0111\u1ea5t, b\u1ea1n c\u00f3 c\u00f2n \u0111\u1ee9ng y\u00ean tr\u00ean m\u1eb7t \u0111\u1ea5t kh\u00f4ng? \u0110\u01a1n gi\u1ea3n l\u00e0 khi kh\u00f4ng c\u00f3 s\u1ee9c h\u1ea5p d\u1eabn n\u00e0o n\u1eefa, b\u1ea5t c\u1ee9 th\u1ee9 g\u00ec b\u00ean ngo\u00e0i kh\u00f4ng \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o m\u1eb7t \u0111\u1ea5t s\u1ebd bay v\u00e0o kh\u00f4ng gian. Nh\u1eefng ng\u01b0\u1eddi \u1edf b\u00ean ngo\u00e0i, khi tr\u1ecdng l\u1ef1c b\u1ecb m\u1ea5t s\u1ebd b\u1ecb th\u1ed5i bay trong ch\u1edbp m\u1eaft. V\u00e0 nh\u1eefng ng\u01b0\u1eddi \u0111ang c\u01b0 tr\u00fa trong t\u00f2a nh\u00e0 s\u1ebd an to\u00e0n h\u01a1n nh\u01b0ng kh\u00f4ng l\u00e2u, s\u1edbm mu\u1ed9n g\u00ec c\u0169ng s\u1ebd b\u1ecb k\u00e9o \u0111i. <\/p>\n<p dir=\"ltr\">Ngo\u00e0i ra, m\u1ed9t trong nh\u1eefng ng\u01b0\u1eddi b\u1ea1n t\u1ed1t nh\u1ea5t c\u1ee7a tr\u00e1i \u0111\u1ea5t l\u00e0 m\u1eb7t tr\u0103ng s\u1ebd b\u1ecb m\u1ea5t. B\u1edfi v\u00ec \u0111i\u1ec1u duy nh\u1ea5t gi\u1eef cho m\u1eb7t tr\u0103ng kh\u00f4ng b\u1ecb tr\u00f4i, v\u00e0 tr\u1edf th\u00e0nh m\u1ed9t v\u1ec7 tinh tr\u00ean qu\u1ef9 \u0111\u1ea1o c\u1ee7a n\u00f3 l\u00e0 \u0111i\u1ec3m thu h\u00fat c\u1ee7a tr\u00e1i \u0111\u1ea5t. <\/p>\n<p dir=\"ltr\">B\u1ea7u kh\u00f4ng kh\u00ed v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c qu\u1ed1c gia tr\u00ean tr\u00e1i \u0111\u1ea5t bao g\u1ed3m \u0111\u1ea1i d\u01b0\u01a1ng, bi\u1ec3n, s\u00f4ng, h\u1ed3 &#8230; \u0111\u01b0\u1ee3c gi\u1eef b\u1edfi tr\u1ecdng l\u1ef1c tr\u00ean tr\u00e1i \u0111\u1ea5t, n\u1ebfu b\u1ea7u kh\u00ed quy\u1ec3n m\u1ea5t kh\u00ed s\u1ebd nhanh ch\u00f3ng tr\u00f4i v\u00e0o kh\u00f4ng gian. N\u00f3 c\u0169ng c\u00f3 ngh\u0129a l\u00e0 ch\u00fang ta kh\u00f4ng c\u00f2n kh\u00f4ng kh\u00ed \u0111\u1ec3 th\u1edf. <\/p>\n<p dir=\"ltr\">N\u00f3i t\u00f3m l\u1ea1i, m\u1ecdi th\u1ee9 tr\u00ean tr\u00e1i \u0111\u1ea5t s\u1ebd bay v\u00e0o kh\u00f4ng gian, kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i n\u1eefa. <\/p>\n<p dir=\"ltr\">V\u00ec v\u1eady, ch\u00fang ta th\u1ea5y r\u1eb1ng cu\u1ed9c s\u1ed1ng c\u1ee7a t\u1ea5t c\u1ea3 m\u1ecdi ng\u01b0\u1eddi v\u00e0 sinh v\u1eadt tr\u00ean tr\u00e1i \u0111\u1ea5t n\u00e0y kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i m\u00e0 kh\u00f4ng c\u00f3 tr\u1ecdng l\u1ef1c. Tr\u1ecdng l\u1ef1c l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng \u0111\u1ed1i v\u1edbi tr\u00e1i \u0111\u1ea5t n\u00e0y. <\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cong_thuc_tinh_trong_luc\"><\/span>C\u00f4ng th\u1ee9c t\u00ednh tr\u1ecdng l\u1ef1c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table style=\"border-collapse: collapse;width: 100%;height: 22.3906px\" border=\"1\">\n<tr style=\"height: 22.3906px\">\n<td style=\"width: 99.0477%;border-color: #4e4c50;border-width: 0.5px;height: 22.3906px;text-align: center\">P = 10.M<\/td>\n<\/tr>\n<\/table>\n<p dir=\"ltr\">N\u1ebfu m (kg) th\u00ec p = 10.m <\/p>\n<p dir=\"ltr\">M: Mass (kg) <\/p>\n<p dir=\"ltr\">P: Tr\u1ecdng l\u01b0\u1ee3ng (N) <\/p>\n<p dir=\"ltr\">Nh\u1eadn x\u00e9t: Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00f3. Tr\u1ecdng l\u01b0\u1ee3ng c\u00e0ng cao, tr\u1ecdng l\u01b0\u1ee3ng c\u00e0ng l\u1edbn <\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: M\u1ed9t ng\u01b0\u1eddi c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng 50kg l\u00e0 bao nhi\u00eau, tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a ng\u01b0\u1eddi \u0111\u00f3 l\u00e0 bao nhi\u00eau? <\/p>\n<p dir=\"ltr\">Ch\u00fang ta c\u00f3 m = 50 kg. Tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a ng\u01b0\u1eddi \u0111\u00f3 l\u00e0: p = 10. 50 = 500 (n) <\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cau_hoi_bai_tap_trong_luc\"><\/span>C\u00e2u h\u1ecfi &amp; b\u00e0i t\u1eadp tr\u1ecdng l\u1ef1c  <span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">B\u00e0i 1: Hai v\u00ed d\u1ee5 v\u1ec1 tr\u1ecdng l\u1ef1c gi\u1eefa nh\u1eefng th\u1ee9 trong cu\u1ed9c s\u1ed1ng l\u00e0 g\u00ec?<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: <\/p>\n<p dir=\"ltr\">M\u1eb7t tr\u0103ng xoay quanh tr\u00e1i \u0111\u1ea5t do tr\u1ecdng l\u1ef1c gi\u1eefa tr\u00e1i \u0111\u1ea5t v\u00e0 m\u1eb7t tr\u0103ng <\/p>\n<p dir=\"ltr\">Ch\u00fang t\u00f4i n\u00e9m b\u00f3ng l\u00ean cao, qu\u1ea3 b\u00f3ng r\u01a1i xu\u1ed1ng \u0111\u1ea5t l\u00e0 do tr\u1ecdng l\u1ef1c gi\u1eefa b\u00f3ng v\u00e0 tr\u00e1i \u0111\u1ea5t. <\/p>\n<p dir=\"ltr\">B\u00e0i 2: M\u1ed9t chi\u1ebfc xe c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng 5 t\u1ea5n l\u00e0 bao nhi\u00eau? <\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: <\/p>\n<p dir=\"ltr\">Ch\u00fang t\u00f4i c\u00f3 m\u1ed9t kh\u1ed1i xe M = 5 t\u1ea5n = 5000 kg. Tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a \u00f4 t\u00f4 P = m.10 = 5000.10 = 50 000 N<\/p>\n<p dir=\"ltr\">B\u00e0i 3: M\u1ed9t cu\u1ed1n s\u00e1ch n\u1eb7ng 100g v\u00e0 c\u00e2n b\u1eb1ng s\u1eaft v\u1edbi tr\u1ecdng l\u01b0\u1ee3ng 100g \u0111\u01b0\u1ee3c \u0111\u1eb7t g\u1ea7n nhau tr\u00ean b\u00e0n. \u0110i\u1ec1u n\u00e0o sau \u0111\u00e2y kh\u00f4ng \u0111\u00fang? <\/p>\n<ol>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Hai \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 c\u00f9ng tr\u1ecdng l\u01b0\u1ee3ng <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Hai \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 c\u00f9ng m\u1ed9t \u00e2m l\u01b0\u1ee3ng <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Hai \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 c\u00f9ng m\u1ed9t \u00e2m l\u01b0\u1ee3ng <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Tr\u1ecdng l\u1ef1c gi\u1eefa hai v\u1eadt <\/p>\n<\/li>\n<\/ol>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: b<\/p>\n<p dir=\"ltr\">B\u00e0i 4: Tr\u1ecdng l\u01b0\u1ee3ng 40N l\u00e0 bao nhi\u00eau? <\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: <\/p>\n<p dir=\"ltr\">Ch\u00fang ta c\u00f3 p = 10.m =&gt; m = p\/10 = 40\/10 = 4. V\u00ec v\u1eady, kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 4 (kg) <\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 5: Vui l\u00f2ng cho bi\u1ebft tr\u1ecdng l\u01b0\u1ee3ng t\u01b0\u01a1ng \u1ee9ng c\u1ee7a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng sau <\/p>\n<p dir=\"ltr\">A, t\u00fai k\u1eb9o c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng 150g <\/p>\n<p dir=\"ltr\">B, t\u00fai \u0111\u01b0\u1eddng c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng 2 kg <\/p>\n<p dir=\"ltr\">C, m\u1ed9t h\u1ed9p s\u1eefa c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng 380 g <\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: <\/p>\n<p dir=\"ltr\">M\u1ed9t. 150 g = 0,15 kg<\/p>\n<p dir=\"ltr\">P = m.10 = 0.15,10 = 1,5 N <\/p>\n<p dir=\"ltr\">B, p = 2.10 = 20 N <\/p>\n<p dir=\"ltr\">C, 380g = 0,38 kg<\/p>\n<p dir=\"ltr\">P = 0,38 x 10 = 3,8 N<\/p>\n<p dir=\"ltr\">B\u00e0i vi\u1ebft tr\u00ean m\u1ed9t ph\u1ea7n gi\u1ea3i th\u00edch l\u00fd thuy\u1ebft v\u1ec1 tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec? C\u00f3 l\u1ebd h\u1ea7u h\u1ebft ch\u00fang ta \u0111\u1ec1u c\u1ea3m th\u1ea5y t\u1ea7m quan tr\u1ecdng c\u1ee7a tr\u1ecdng l\u1ef1c trong cu\u1ed9c s\u1ed1ng. Ngo\u00e0i ra, h\u1ecdc sinh n\u00ean c\u1ea9n th\u1eadn ghi nh\u1edb c\u00f4ng th\u1ee9c cho tr\u1ecdng l\u1ef1c \u00e1p d\u1ee5ng cho c\u00e1c b\u00e0i t\u1eadp c\u00f3 li\u00ean quan. Kh\u1ec9 ch\u00fac t\u1ea5t c\u1ea3 c\u00e1c b\u1ea1n t\u1ed1t. <\/p>\n<p>Ngu\u1ed3n: <a href=\"http:\/\/www.ckconitsha.com\/vn\/\">http:\/\/www.ckconitsha.com\/vn\/<\/a> T\u00e1c gi\u1ea3: <a href=\"https:\/\/www.ckconitsha.com\/vn\/author\/nguyenlandung\">Nguy\u1ec5n L\u00e2n d\u0169ng<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u1ea1n c\u00f3 bi\u1ebft t\u1ea1i sao khi ch\u00fang ta th\u1ea3 m\u1ed9t v\u1eadt th\u1ec3 trong tay, n\u00f3 r\u01a1i xu\u1ed1ng? T\u1ea1i sao b\u1ea1n l\u1ea1i nh\u1ea3y xu\u1ed1ng \u0111\u1ea5t m\u1ed7i l\u1ea7n? \u0110\u00f3 l\u00e0 do tr\u1ecdng l\u1ef1c c\u1ee7a tr\u00e1i \u0111\u1ea5t. V\u00ec v\u1eady, h\u00f4m nay, kh\u1ec9 s\u1ebd t\u00ecm ra tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec? Tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 bu\u1ed5i chi\u1ec1u l\u00e0 bao nhi\u00eau? Tr\u1ecdng&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-21311","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/21311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/comments?post=21311"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/21311\/revisions"}],"predecessor-version":[{"id":26638,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/21311\/revisions\/26638"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=21311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=21311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=21311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}