{"id":570898,"date":"2026-07-27T14:55:39","date_gmt":"2026-07-27T07:55:39","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=570898"},"modified":"2026-07-27T15:08:35","modified_gmt":"2026-07-27T08:08:35","slug":"luc-hap-dan-la-gi","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/luc-hap-dan-la-gi\/","title":{"rendered":"L\u1ef1c h\u1ea5p d\u1eabn l\u00e0 g\u00ec? \u0110\u1ecbnh lu\u1eadt v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn v\u00e0 c\u00f4ng th\u1ee9c"},"content":{"rendered":"<p><strong>L\u1ef1c h\u1ea5p d\u1eabn l\u00e0 l\u1ef1c h\u00fat xu\u1ea5t hi\u1ec7n gi\u1eefa m\u1ecdi v\u1eadt c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng; theo \u0111\u1ecbnh lu\u1eadt v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn c\u1ee7a Newton, l\u1ef1c n\u00e0y t\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi t\u00edch hai kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 t\u1ec9 l\u1ec7 ngh\u1ecbch v\u1edbi b\u00ecnh ph\u01b0\u01a1ng kho\u1ea3ng c\u00e1ch gi\u1eefa ch\u00fang, bi\u1ec3u di\u1ec5n b\u1eb1ng c\u00f4ng th\u1ee9c F = G\u00b7m\u2081\u00b7m\u2082\/r\u00b2.<\/strong> \u0110\u00e2y l\u00e0 m\u1ed9t trong b\u1ed1n l\u1ef1c c\u01a1 b\u1ea3n c\u1ee7a t\u1ef1 nhi\u00ean v\u00e0 l\u00e0 ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng c\u1ee7a m\u00f4n V\u1eadt l\u00fd. Hi\u1ec3u \u0111\u00fang b\u1ea3n ch\u1ea5t l\u1ef1c h\u1ea5p d\u1eabn gi\u00fap b\u1ea1n gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c v\u00ec sao qu\u1ea3 t\u00e1o r\u01a1i xu\u1ed1ng \u0111\u1ea5t, v\u00ec sao M\u1eb7t Tr\u0103ng quay quanh Tr\u00e1i \u0110\u1ea5t v\u00e0 c\u00e1c h\u00e0nh tinh chuy\u1ec3n \u0111\u1ed9ng quanh M\u1eb7t Tr\u1eddi. N\u1ed9i dung d\u01b0\u1edbi \u0111\u00e2y s\u1ebd gi\u00fap b\u1ea1n n\u1eafm r\u00f5 \u0111\u1ecbnh ngh\u0129a, \u0111\u1ecbnh lu\u1eadt, \u0111\u1eb7c \u0111i\u1ec3m, m\u1ed1i li\u00ean h\u1ec7 v\u1edbi tr\u1ecdng l\u1ef1c c\u00f9ng c\u00e1c b\u00e0i t\u1eadp c\u00f3 l\u1eddi gi\u1ea3i chi ti\u1ebft.<\/p>\n<h2>L\u1ef1c h\u1ea5p d\u1eabn l\u00e0 g\u00ec?<\/h2>\n<p>L\u1ef1c h\u1ea5p d\u1eabn l\u00e0 l\u1ef1c h\u00fat gi\u1eefa hai v\u1eadt b\u1ea5t k\u1ef3 c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng. M\u1ecdi v\u1eadt trong v\u0169 tr\u1ee5 \u0111\u1ec1u h\u00fat nhau b\u1eb1ng l\u1ef1c h\u1ea5p d\u1eabn, t\u1eeb hai quy\u1ec3n s\u00e1ch \u0111\u1eb7t tr\u00ean b\u00e0n cho \u0111\u1ebfn Tr\u00e1i \u0110\u1ea5t v\u00e0 M\u1eb7t Tr\u1eddi. Tuy nhi\u00ean, v\u1edbi c\u00e1c v\u1eadt c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng nh\u1ecf, l\u1ef1c h\u1ea5p d\u1eabn r\u1ea5t y\u1ebfu n\u00ean ta kh\u00f4ng c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c; ch\u1ec9 khi m\u1ed9t trong hai v\u1eadt c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng r\u1ea5t l\u1edbn (nh\u01b0 Tr\u00e1i \u0110\u1ea5t) th\u00ec l\u1ef1c n\u00e0y m\u1edbi th\u1ec3 hi\u1ec7n r\u00f5 r\u1ec7t.<\/p>\n<p>L\u1ef1c h\u1ea5p d\u1eabn \u0111\u01b0\u1ee3c nh\u00e0 b\u00e1c h\u1ecdc Isaac Newton nghi\u00ean c\u1ee9u v\u00e0 kh\u00e1i qu\u00e1t th\u00e0nh \u0111\u1ecbnh lu\u1eadt v\u00e0o th\u1ebf k\u1ef7 17. \u00d4ng nh\u1eadn ra r\u1eb1ng ch\u00ednh l\u1ef1c h\u00fat n\u00e0y v\u1eeba gi\u1eef c\u00e1c v\u1eadt tr\u00ean m\u1eb7t \u0111\u1ea5t, v\u1eeba \u0111i\u1ec1u khi\u1ec3n chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c thi\u00ean th\u1ec3 trong v\u0169 tr\u1ee5. \u0110\u00e2y l\u00e0 m\u1ed9t ph\u00e1t hi\u1ec7n mang t\u00ednh c\u00e1ch m\u1ea1ng v\u00ec n\u00f3 th\u1ed1ng nh\u1ea5t hi\u1ec7n t\u01b0\u1ee3ng &#8220;r\u01a1i&#8221; tr\u00ean Tr\u00e1i \u0110\u1ea5t v\u1edbi chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c h\u00e0nh tinh.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-570900\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-3.jpg\" alt=\"luc-hap-dan-3\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-3.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-3-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-3-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>\u0110\u1ecbnh lu\u1eadt v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn<\/h2>\n<p>\u0110\u1ecbnh lu\u1eadt v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn ph\u00e1t bi\u1ec3u r\u1eb1ng: l\u1ef1c h\u00fat gi\u1eefa hai ch\u1ea5t \u0111i\u1ec3m t\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi t\u00edch hai kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a ch\u00fang v\u00e0 t\u1ec9 l\u1ec7 ngh\u1ecbch v\u1edbi b\u00ecnh ph\u01b0\u01a1ng kho\u1ea3ng c\u00e1ch gi\u1eefa ch\u00fang. C\u00f4ng th\u1ee9c t\u00ednh nh\u01b0 sau:<\/p>\n<p><strong>F = G \u00b7 m\u2081 \u00b7 m\u2082 \/ r\u00b2<\/strong><\/p>\n<p>Trong \u0111\u00f3 c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh nh\u01b0 b\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0110\u1ea1i l\u01b0\u1ee3ng<\/th>\n<th>\u00dd ngh\u0129a<\/th>\n<th>\u0110\u01a1n v\u1ecb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>F<\/td>\n<td>\u0110\u1ed9 l\u1edbn l\u1ef1c h\u1ea5p d\u1eabn<\/td>\n<td>Niut\u01a1n (N)<\/td>\n<\/tr>\n<tr>\n<td>m\u2081, m\u2082<\/td>\n<td>Kh\u1ed1i l\u01b0\u1ee3ng hai v\u1eadt<\/td>\n<td>Kil\u00f4gam (kg)<\/td>\n<\/tr>\n<tr>\n<td>r<\/td>\n<td>Kho\u1ea3ng c\u00e1ch gi\u1eefa hai v\u1eadt<\/td>\n<td>M\u00e9t (m)<\/td>\n<\/tr>\n<tr>\n<td>G<\/td>\n<td>H\u1eb1ng s\u1ed1 h\u1ea5p d\u1eabn \u2248 6,67 \u00d7 10\u207b\u00b9\u00b9<\/td>\n<td>N\u00b7m\u00b2\/kg\u00b2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>H\u1eb1ng s\u1ed1 h\u1ea5p d\u1eabn G l\u00e0 m\u1ed9t h\u1eb1ng s\u1ed1 v\u1eadt l\u00fd c\u00f3 gi\u00e1 tr\u1ecb r\u1ea5t nh\u1ecf v\u00e0 gi\u1ed1ng nhau \u1edf m\u1ecdi n\u01a1i trong v\u0169 tr\u1ee5. Ch\u00ednh v\u00ec G qu\u00e1 nh\u1ecf n\u00ean l\u1ef1c h\u00fat gi\u1eefa c\u00e1c v\u1eadt th\u00f4ng th\u01b0\u1eddng trong \u0111\u1eddi s\u1ed1ng g\u1ea7n nh\u01b0 kh\u00f4ng \u0111\u00e1ng k\u1ec3, ch\u1ec9 tr\u1edf n\u00ean r\u00f5 r\u00e0ng khi c\u00f3 s\u1ef1 tham gia c\u1ee7a c\u00e1c v\u1eadt th\u1ec3 kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed5ng l\u1ed3 nh\u01b0 h\u00e0nh tinh hay ng\u00f4i sao.<\/p>\n<h2>\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a l\u1ef1c h\u1ea5p d\u1eabn<\/h2>\n<p>L\u1ef1c h\u1ea5p d\u1eabn c\u00f3 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m quan tr\u1ecdng sau \u0111\u00e2y m\u00e0 b\u1ea1n c\u1ea7n ghi nh\u1edb khi l\u00e0m b\u00e0i t\u1eadp:<\/p>\n<ul>\n<li>Lu\u00f4n l\u00e0 <strong>l\u1ef1c h\u00fat<\/strong>, kh\u00f4ng bao gi\u1edd l\u00e0 l\u1ef1c \u0111\u1ea9y.<\/li>\n<li>C\u00f3 ph\u01b0\u01a1ng n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng th\u1eb3ng n\u1ed1i t\u00e2m hai v\u1eadt.<\/li>\n<li>Xu\u1ea5t hi\u1ec7n gi\u1eefa m\u1ecdi v\u1eadt c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng, k\u1ec3 c\u1ea3 khi hai v\u1eadt \u1edf r\u1ea5t xa nhau.<\/li>\n<li>T\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi t\u00edch hai kh\u1ed1i l\u01b0\u1ee3ng: kh\u1ed1i l\u01b0\u1ee3ng c\u00e0ng l\u1edbn th\u00ec l\u1ef1c h\u00fat c\u00e0ng m\u1ea1nh.<\/li>\n<li>Gi\u1ea3m r\u1ea5t nhanh theo kho\u1ea3ng c\u00e1ch: kho\u1ea3ng c\u00e1ch t\u0103ng 2 l\u1ea7n th\u00ec l\u1ef1c gi\u1ea3m 4 l\u1ea7n.<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-570901\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-1.jpg\" alt=\"luc-hap-dan-1\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-1.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-1-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-1-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>Tr\u1ecdng l\u1ef1c \u2013 tr\u01b0\u1eddng h\u1ee3p ri\u00eang c\u1ee7a l\u1ef1c h\u1ea5p d\u1eabn<\/h2>\n<p>Tr\u1ecdng l\u1ef1c ch\u00ednh l\u00e0 l\u1ef1c h\u00fat m\u00e0 Tr\u00e1i \u0110\u1ea5t t\u00e1c d\u1ee5ng l\u00ean c\u00e1c v\u1eadt \u1edf g\u1ea7n b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3, v\u00e0 \u0111\u00e2y l\u00e0 tr\u01b0\u1eddng h\u1ee3p ri\u00eang quen thu\u1ed9c nh\u1ea5t c\u1ee7a l\u1ef1c h\u1ea5p d\u1eabn. \u0110\u1ed9 l\u1edbn c\u1ee7a tr\u1ecdng l\u1ef1c (c\u00f2n g\u1ecdi l\u00e0 tr\u1ecdng l\u01b0\u1ee3ng) \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng c\u00f4ng th\u1ee9c:<\/p>\n<p><strong>P = m \u00b7 g<\/strong><\/p>\n<p>Trong \u0111\u00f3 m l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a v\u1eadt (kg) v\u00e0 g l\u00e0 <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/gia-toc-trong-truong-la-gi\/\">gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng<\/a> (kho\u1ea3ng 9,8 m\/s\u00b2 \u1edf g\u1ea7n m\u1eb7t \u0111\u1ea5t, th\u01b0\u1eddng l\u00e0m tr\u00f2n 10 m\/s\u00b2 khi t\u00ednh to\u00e1n). Ch\u00ednh l\u1ef1c h\u1ea5p d\u1eabn c\u1ee7a Tr\u00e1i \u0110\u1ea5t l\u00e0 nguy\u00ean nh\u00e2n khi\u1ebfn m\u1ecdi v\u1eadt khi th\u1ea3 ra \u0111\u1ec1u r\u01a1i xu\u1ed1ng. Khi bi\u1ebft tr\u1ecdng l\u01b0\u1ee3ng P v\u00e0 th\u1ec3 t\u00edch V, b\u1ea1n c\u00f2n x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/trong-luong-rieng-la-gi\/\">tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang<\/a> c\u1ee7a v\u1eadt b\u1eb1ng c\u00f4ng th\u1ee9c d = P\/V. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 \u0111\u1ea1i l\u01b0\u1ee3ng n\u00e0y trong b\u00e0i <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/trong-luc-la-gi\/\">tr\u1ecdng l\u1ef1c l\u00e0 g\u00ec<\/a>.<\/p>\n<p>C\u1ea7n ph\u00e2n bi\u1ec7t r\u00f5 hai kh\u00e1i ni\u1ec7m: l\u1ef1c h\u1ea5p d\u1eabn l\u00e0 l\u1ef1c h\u00fat t\u1ed5ng qu\u00e1t gi\u1eefa hai v\u1eadt b\u1ea5t k\u1ef3 c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng, c\u00f2n tr\u1ecdng l\u1ef1c ch\u1ec9 l\u00e0 l\u1ef1c h\u1ea5p d\u1eabn c\u1ee5 th\u1ec3 do Tr\u00e1i \u0110\u1ea5t (ho\u1eb7c m\u1ed9t thi\u00ean th\u1ec3) t\u00e1c d\u1ee5ng l\u00ean v\u1eadt \u1edf g\u1ea7n n\u00f3. N\u00f3i c\u00e1ch kh\u00e1c, tr\u1ecdng l\u1ef1c l\u00e0 m\u1ed9t d\u1ea1ng c\u1ee7a l\u1ef1c h\u1ea5p d\u1eabn.<\/p>\n<h2>\u00dd ngh\u0129a c\u1ee7a l\u1ef1c h\u1ea5p d\u1eabn<\/h2>\n<p>L\u1ef1c h\u1ea5p d\u1eabn gi\u1eef vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c duy tr\u00ec c\u1ea5u tr\u00fac v\u00e0 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u0169 tr\u1ee5:<\/p>\n<ul>\n<li>Gi\u1eef c\u00e1c h\u00e0nh tinh chuy\u1ec3n \u0111\u1ed9ng quanh M\u1eb7t Tr\u1eddi theo qu\u1ef9 \u0111\u1ea1o \u1ed5n \u0111\u1ecbnh.<\/li>\n<li>Gi\u1eef M\u1eb7t Tr\u0103ng quay quanh Tr\u00e1i \u0110\u1ea5t v\u00e0 t\u1ea1o n\u00ean hi\u1ec7n t\u01b0\u1ee3ng th\u1ee7y tri\u1ec1u.<\/li>\n<li>Gi\u1eef b\u1ea7u kh\u00ed quy\u1ec3n bao quanh Tr\u00e1i \u0110\u1ea5t, duy tr\u00ec s\u1ef1 s\u1ed1ng.<\/li>\n<li>L\u00e0 y\u1ebfu t\u1ed1 h\u00ecnh th\u00e0nh v\u00e0 duy tr\u00ec c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c thi\u00ean h\u00e0 \u1edf quy m\u00f4 l\u1edbn.<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-570902\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-2.jpg\" alt=\"luc-hap-dan-2\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-2.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-2-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-2-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>B\u00e0i t\u1eadp v\u1eadn d\u1ee5ng c\u00f3 l\u1eddi gi\u1ea3i<\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp minh h\u1ecda gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n c\u00e1ch v\u1eadn d\u1ee5ng c\u00f4ng th\u1ee9c l\u1ef1c h\u1ea5p d\u1eabn:<\/p>\n<ul>\n<li><strong>B\u00e0i 1:<\/strong> N\u1ebfu kho\u1ea3ng c\u00e1ch gi\u1eefa hai v\u1eadt t\u0103ng g\u1ea5p 3 l\u1ea7n th\u00ec l\u1ef1c h\u00fat thay \u0111\u1ed5i th\u1ebf n\u00e0o? <em>L\u1eddi gi\u1ea3i:<\/em> V\u00ec F t\u1ec9 l\u1ec7 ngh\u1ecbch v\u1edbi r\u00b2 n\u00ean khi r t\u0103ng 3 l\u1ea7n, l\u1ef1c h\u1ea5p d\u1eabn gi\u1ea3m 3\u00b2 = 9 l\u1ea7n.<\/li>\n<li><strong>B\u00e0i 2:<\/strong> N\u1ebfu kh\u1ed1i l\u01b0\u1ee3ng m\u1ed9t v\u1eadt t\u0103ng g\u1ea5p \u0111\u00f4i, gi\u1eef nguy\u00ean kho\u1ea3ng c\u00e1ch, l\u1ef1c h\u00fat thay \u0111\u1ed5i ra sao? <em>L\u1eddi gi\u1ea3i:<\/em> V\u00ec F t\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng n\u00ean l\u1ef1c h\u00fat t\u0103ng g\u1ea5p \u0111\u00f4i.<\/li>\n<li><strong>B\u00e0i 3:<\/strong> M\u1ed9t v\u1eadt kh\u1ed1i l\u01b0\u1ee3ng 5 kg \u1edf g\u1ea7n m\u1eb7t \u0111\u1ea5t, l\u1ea5y g = 9,8 m\/s\u00b2. T\u00ednh tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a v\u1eadt. <em>L\u1eddi gi\u1ea3i:<\/em> P = m\u00b7g = 5 \u00d7 9,8 = 49 N.<\/li>\n<li><strong>B\u00e0i 4:<\/strong> Hai v\u1eadt l\u1ea7n l\u01b0\u1ee3t c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng 10 kg v\u00e0 20 kg, \u0111\u1eb7t c\u00e1ch nhau 2 m. T\u00ednh l\u1ef1c h\u1ea5p d\u1eabn gi\u1eefa ch\u00fang. <em>L\u1eddi gi\u1ea3i:<\/em> F = G\u00b7m\u2081\u00b7m\u2082\/r\u00b2 = 6,67 \u00d7 10\u207b\u00b9\u00b9 \u00d7 10 \u00d7 20 \/ 2\u00b2 \u2248 3,34 \u00d7 10\u207b\u2079 N \u2014 m\u1ed9t gi\u00e1 tr\u1ecb c\u1ef1c nh\u1ecf, cho th\u1ea5y v\u00ec sao ta kh\u00f4ng c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c l\u1ef1c h\u00fat gi\u1eefa c\u00e1c v\u1eadt th\u01b0\u1eddng ng\u00e0y.<\/li>\n<li><strong>B\u00e0i 5 (tr\u1eafc nghi\u1ec7m):<\/strong> L\u1ef1c h\u1ea5p d\u1eabn c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m n\u00e0o sau \u0111\u00e2y? A. Lu\u00f4n l\u00e0 l\u1ef1c \u0111\u1ea9y. B. Lu\u00f4n l\u00e0 l\u1ef1c h\u00fat. C. C\u00f3 th\u1ec3 h\u00fat ho\u1eb7c \u0111\u1ea9y. D. Kh\u00f4ng ph\u1ee5 thu\u1ed9c kh\u1ed1i l\u01b0\u1ee3ng. <em>\u0110\u00e1p \u00e1n:<\/em> B.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-570903\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-4.jpg\" alt=\"luc-hap-dan-4\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-4.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-4-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/luc-hap-dan-4-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>C\u00f4ng th\u1ee9c l\u1ef1c h\u1ea5p d\u1eabn l\u00e0 g\u00ec?<\/h3>\n<p>C\u00f4ng th\u1ee9c l\u1ef1c h\u1ea5p d\u1eabn l\u00e0 F = G\u00b7m\u2081\u00b7m\u2082\/r\u00b2, trong \u0111\u00f3 G \u2248 6,67 \u00d7 10\u207b\u00b9\u00b9 N\u00b7m\u00b2\/kg\u00b2 l\u00e0 h\u1eb1ng s\u1ed1 h\u1ea5p d\u1eabn, m\u2081 v\u00e0 m\u2082 l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng hai v\u1eadt, r l\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa ch\u00fang.<\/p>\n<h3>L\u1ef1c h\u1ea5p d\u1eabn c\u00f3 th\u1ec3 l\u00e0 l\u1ef1c \u0111\u1ea9y kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng. L\u1ef1c h\u1ea5p d\u1eabn lu\u00f4n lu\u00f4n l\u00e0 l\u1ef1c h\u00fat, k\u00e9o hai v\u1eadt l\u1ea1i g\u1ea7n nhau, v\u00e0 kh\u00f4ng bao gi\u1edd l\u00e0 l\u1ef1c \u0111\u1ea9y.<\/p>\n<h3>Tr\u1ecdng l\u1ef1c c\u00f3 ph\u1ea3i l\u00e0 l\u1ef1c h\u1ea5p d\u1eabn kh\u00f4ng?<\/h3>\n<p>C\u00f3. Tr\u1ecdng l\u1ef1c l\u00e0 tr\u01b0\u1eddng h\u1ee3p ri\u00eang c\u1ee7a l\u1ef1c h\u1ea5p d\u1eabn, ch\u00ednh l\u00e0 l\u1ef1c h\u00fat do Tr\u00e1i \u0110\u1ea5t t\u00e1c d\u1ee5ng l\u00ean v\u1eadt \u1edf g\u1ea7n b\u1ec1 m\u1eb7t, t\u00ednh b\u1eb1ng c\u00f4ng th\u1ee9c P = m\u00b7g.<\/p>\n<h3>V\u00ec sao ta kh\u00f4ng c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c l\u1ef1c h\u1ea5p d\u1eabn gi\u1eefa hai v\u1eadt nh\u1ecf?<\/h3>\n<p>V\u00ec h\u1eb1ng s\u1ed1 h\u1ea5p d\u1eabn G r\u1ea5t nh\u1ecf n\u00ean l\u1ef1c h\u00fat gi\u1eefa c\u00e1c v\u1eadt c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng nh\u1ecf l\u00e0 c\u1ef1c k\u1ef3 y\u1ebfu, kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 ta c\u1ea3m nh\u1eadn. L\u1ef1c ch\u1ec9 r\u00f5 r\u1ec7t khi c\u00f3 v\u1eadt kh\u1ed1i l\u01b0\u1ee3ng r\u1ea5t l\u1edbn tham gia.<\/p>\n<h3>Ai l\u00e0 ng\u01b0\u1eddi t\u00ecm ra \u0111\u1ecbnh lu\u1eadt v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn?<\/h3>\n<p>Nh\u00e0 b\u00e1c h\u1ecdc Isaac Newton l\u00e0 ng\u01b0\u1eddi ph\u00e1t bi\u1ec3u \u0111\u1ecbnh lu\u1eadt v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn v\u00e0o th\u1ebf k\u1ef7 17, th\u1ed1ng nh\u1ea5t chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c v\u1eadt tr\u00ean Tr\u00e1i \u0110\u1ea5t v\u1edbi chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c thi\u00ean th\u1ec3.<\/p>\n<h3>\u0110\u01a1n v\u1ecb c\u1ee7a h\u1eb1ng s\u1ed1 h\u1ea5p d\u1eabn G l\u00e0 g\u00ec?<\/h3>\n<p>H\u1eb1ng s\u1ed1 h\u1ea5p d\u1eabn G c\u00f3 \u0111\u01a1n v\u1ecb l\u00e0 N\u00b7m\u00b2\/kg\u00b2 v\u00e0 gi\u00e1 tr\u1ecb x\u1ea5p x\u1ec9 6,67 \u00d7 10\u207b\u00b9\u00b9 N\u00b7m\u00b2\/kg\u00b2, gi\u1ed1ng nhau \u1edf m\u1ecdi n\u01a1i trong v\u0169 tr\u1ee5.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>T\u00f3m l\u1ea1i, <strong>l\u1ef1c h\u1ea5p d\u1eabn l\u00e0 l\u1ef1c h\u00fat gi\u1eefa m\u1ecdi v\u1eadt c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng, \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng c\u00f4ng th\u1ee9c F = G\u00b7m\u2081\u00b7m\u2082\/r\u00b2, v\u00e0 tr\u1ecdng l\u1ef1c ch\u00ednh l\u00e0 tr\u01b0\u1eddng h\u1ee3p ri\u00eang c\u1ee7a n\u00f3<\/strong>. \u0110\u00e2y l\u00e0 l\u1ef1c chi ph\u1ed1i chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c thi\u00ean th\u1ec3 v\u00e0 duy tr\u00ec c\u1ea5u tr\u00fac c\u1ee7a v\u0169 tr\u1ee5. N\u1eafm v\u1eefng \u0111\u1ecbnh ngh\u0129a, c\u00f4ng th\u1ee9c v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m s\u1ebd gi\u00fap b\u1ea1n t\u1ef1 tin gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp V\u1eadt l\u00fd li\u00ean quan. B\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o th\u00eam c\u00e1c b\u00e0i vi\u1ebft kh\u00e1c tr\u00ean chuy\u00ean m\u1ee5c tin t\u1ee9c c\u1ee7a Ho\u00e0ng H\u00e0 Mobile \u0111\u1ec3 m\u1edf r\u1ed9ng ki\u1ebfn th\u1ee9c.<br \/>\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"C\u00f4ng th\u1ee9c l\u1ef1c h\u1ea5p d\u1eabn l\u00e0 g\u00ec?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"C\u00f4ng th\u1ee9c l\u1ef1c h\u1ea5p d\u1eabn l\u00e0 F = G\u00b7m\u2081\u00b7m\u2082\/r\u00b2, trong \u0111\u00f3 G \u2248 6,67 \u00d7 10\u207b\u00b9\u00b9 N\u00b7m\u00b2\/kg\u00b2 l\u00e0 h\u1eb1ng s\u1ed1 h\u1ea5p d\u1eabn, m\u2081 v\u00e0 m\u2082 l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng hai v\u1eadt, r l\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa ch\u00fang.\"}},{\"@type\":\"Question\",\"name\":\"L\u1ef1c h\u1ea5p d\u1eabn c\u00f3 th\u1ec3 l\u00e0 l\u1ef1c \u0111\u1ea9y kh\u00f4ng?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Kh\u00f4ng. L\u1ef1c h\u1ea5p d\u1eabn lu\u00f4n lu\u00f4n l\u00e0 l\u1ef1c h\u00fat, k\u00e9o hai v\u1eadt l\u1ea1i g\u1ea7n nhau, v\u00e0 kh\u00f4ng bao gi\u1edd l\u00e0 l\u1ef1c \u0111\u1ea9y.\"}},{\"@type\":\"Question\",\"name\":\"Tr\u1ecdng l\u1ef1c c\u00f3 ph\u1ea3i l\u00e0 l\u1ef1c h\u1ea5p d\u1eabn kh\u00f4ng?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"C\u00f3. Tr\u1ecdng l\u1ef1c l\u00e0 tr\u01b0\u1eddng h\u1ee3p ri\u00eang c\u1ee7a l\u1ef1c h\u1ea5p d\u1eabn, ch\u00ednh l\u00e0 l\u1ef1c h\u00fat do Tr\u00e1i \u0110\u1ea5t t\u00e1c d\u1ee5ng l\u00ean v\u1eadt \u1edf g\u1ea7n b\u1ec1 m\u1eb7t, t\u00ednh b\u1eb1ng c\u00f4ng th\u1ee9c P = m\u00b7g.\"}},{\"@type\":\"Question\",\"name\":\"V\u00ec sao ta kh\u00f4ng c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c l\u1ef1c h\u1ea5p d\u1eabn gi\u1eefa hai v\u1eadt nh\u1ecf?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"V\u00ec h\u1eb1ng s\u1ed1 h\u1ea5p d\u1eabn G r\u1ea5t nh\u1ecf n\u00ean l\u1ef1c h\u00fat gi\u1eefa c\u00e1c v\u1eadt c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng nh\u1ecf l\u00e0 c\u1ef1c k\u1ef3 y\u1ebfu, kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 ta c\u1ea3m nh\u1eadn. L\u1ef1c ch\u1ec9 r\u00f5 r\u1ec7t khi c\u00f3 v\u1eadt kh\u1ed1i l\u01b0\u1ee3ng r\u1ea5t l\u1edbn tham gia.\"}},{\"@type\":\"Question\",\"name\":\"Ai l\u00e0 ng\u01b0\u1eddi t\u00ecm ra \u0111\u1ecbnh lu\u1eadt v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Nh\u00e0 b\u00e1c h\u1ecdc Isaac Newton l\u00e0 ng\u01b0\u1eddi ph\u00e1t bi\u1ec3u \u0111\u1ecbnh lu\u1eadt v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn v\u00e0o th\u1ebf k\u1ef7 17, th\u1ed1ng nh\u1ea5t chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c v\u1eadt tr\u00ean Tr\u00e1i \u0110\u1ea5t v\u1edbi chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c thi\u00ean th\u1ec3.\"}},{\"@type\":\"Question\",\"name\":\"\u0110\u01a1n v\u1ecb c\u1ee7a h\u1eb1ng s\u1ed1 h\u1ea5p d\u1eabn G l\u00e0 g\u00ec?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"H\u1eb1ng s\u1ed1 h\u1ea5p d\u1eabn G c\u00f3 \u0111\u01a1n v\u1ecb l\u00e0 N\u00b7m\u00b2\/kg\u00b2 v\u00e0 gi\u00e1 tr\u1ecb x\u1ea5p x\u1ec9 6,67 \u00d7 10\u207b\u00b9\u00b9 N\u00b7m\u00b2\/kg\u00b2, gi\u1ed1ng nhau \u1edf m\u1ecdi n\u01a1i trong v\u0169 tr\u1ee5.\"}}]}\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u1ef1c h\u1ea5p d\u1eabn l\u00e0 l\u1ef1c h\u00fat xu\u1ea5t hi\u1ec7n gi\u1eefa m\u1ecdi v\u1eadt c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng; theo \u0111\u1ecbnh lu\u1eadt v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn c\u1ee7a Newton, l\u1ef1c n\u00e0y t\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi t\u00edch hai kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 t\u1ec9 l\u1ec7 ngh\u1ecbch v\u1edbi b\u00ecnh ph\u01b0\u01a1ng kho\u1ea3ng c\u00e1ch gi\u1eefa ch\u00fang, bi\u1ec3u di\u1ec5n b\u1eb1ng c\u00f4ng th\u1ee9c F = G\u00b7m\u2081\u00b7m\u2082\/r\u00b2. \u0110\u00e2y l\u00e0 m\u1ed9t [&hellip;]<\/p>\n","protected":false},"author":102,"featured_media":570904,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"l\u1ef1c h\u1ea5p d\u1eabn l\u00e0 g\u00ec","_yoast_wpseo_title":"L\u1ef1c h\u1ea5p d\u1eabn l\u00e0 g\u00ec? \u0110\u1ecbnh lu\u1eadt v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn v\u00e0 c\u00f4ng th\u1ee9c","_yoast_wpseo_metadesc":"L\u1ef1c h\u1ea5p d\u1eabn l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u \u0111\u1ecbnh lu\u1eadt v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn c\u1ee7a Newton, c\u00f4ng th\u1ee9c F = G\u00b7m\u2081\u00b7m\u2082\/r\u00b2, \u0111\u1eb7c \u0111i\u1ec3m, li\u00ean h\u1ec7 tr\u1ecdng l\u1ef1c v\u00e0 b\u00e0i t\u1eadp c\u00f3 l\u1eddi gi\u1ea3i.","footnotes":""},"categories":[3910,30453],"tags":[],"class_list":["post-570898","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","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>L\u1ef1c h\u1ea5p d\u1eabn l\u00e0 g\u00ec? \u0110\u1ecbnh lu\u1eadt v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn v\u00e0 c\u00f4ng th\u1ee9c<\/title>\n<meta name=\"description\" content=\"L\u1ef1c h\u1ea5p d\u1eabn l\u00e0 g\u00ec? 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