{"id":28063,"date":"2023-09-11T10:52:49","date_gmt":"2023-09-11T03:52:49","guid":{"rendered":"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2"},"modified":"2023-09-11T10:52:49","modified_gmt":"2023-09-11T03:52:49","slug":"luc-la-gi-2","status":"publish","type":"post","link":"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2","title":{"rendered":"L\u1ef1c l\u00e0 g\u00ec? T\u1ed5ng quan v\u1ec1 kh\u00e1i ni\u1ec7m l\u1ef1c v\u00e0 v\u00ed d\u1ee5 minh h\u1ecda"},"content":{"rendered":"<p>L\u1ef1c l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quan tr\u1ecdng trong v\u1eadt l\u00fd, \u0111\u1ea1i di\u1ec7n cho s\u1ee9c m\u1ea1nh ho\u1eb7c hi\u1ec7u \u1ee9ng t\u00e1c \u0111\u1ed9ng l\u00ean v\u1eadt. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111o v\u00e0 t\u00ednh to\u00e1n \u0111\u1ec3 hi\u1ec3u v\u00e0 d\u1ef1 \u0111o\u00e1n c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng t\u1ef1 nhi\u00ean v\u00e0 c\u00e1c quy lu\u1eadt v\u1eadn \u0111\u1ed9ng c\u1ee7a v\u1eadt th\u1ec3. L\u1ef1c l\u00e0 y\u1ebfu t\u1ed1 c\u01a1 b\u1ea3n gi\u00fap ch\u00fang ta hi\u1ec3u v\u00e0 kh\u00e1m ph\u00e1 s\u1ef1 bi\u1ebfn \u0111\u1ed5i c\u1ee7a th\u1ebf gi\u1edbi xung quanh.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_40 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\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" area-label=\"ez-toc-toggle-icon-1\"><label for=\"item-6ad0e584a4b5a\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;direction:ltr;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input  type=\"checkbox\" id=\"item-6ad0e584a4b5a\"><\/a><\/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:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#1_Luc_la_gi\" title=\"1. L\u1ef1c l\u00e0 g\u00ec?\">1. 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-2\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#2_Vi_du_ve_luc\" title=\"2. V\u00ed d\u1ee5 v\u1ec1 l\u1ef1c.\">2. V\u00ed d\u1ee5 v\u1ec1 l\u1ef1c.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#3_Loai_luc\" title=\"3. Lo\u1ea1i l\u1ef1c.\">3. Lo\u1ea1i l\u1ef1c.<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#-_Luc_hap_dan_Day_la_luc_tac_dong_giua_hai_vat_do_trong_luong_cua_chung_Vi_du_nhu_luc_hap_dan_giua_Trai_Dat_va_cac_vat_tren_mat_dat\" title=\"&#8211; L\u1ef1c h\u1ea5p d\u1eabn: \u0110\u00e2y l\u00e0 l\u1ef1c t\u00e1c \u0111\u1ed9ng gi\u1eefa hai v\u1eadt do tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a ch\u00fang. V\u00ed d\u1ee5 nh\u01b0 l\u1ef1c h\u1ea5p d\u1eabn gi\u1eefa Tr\u00e1i \u0110\u1ea5t v\u00e0 c\u00e1c v\u1eadt tr\u00ean m\u1eb7t \u0111\u1ea5t.\">&#8211; L\u1ef1c h\u1ea5p d\u1eabn: \u0110\u00e2y l\u00e0 l\u1ef1c t\u00e1c \u0111\u1ed9ng gi\u1eefa hai v\u1eadt do tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a ch\u00fang. V\u00ed d\u1ee5 nh\u01b0 l\u1ef1c h\u1ea5p d\u1eabn gi\u1eefa Tr\u00e1i \u0110\u1ea5t v\u00e0 c\u00e1c v\u1eadt tr\u00ean m\u1eb7t \u0111\u1ea5t.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#-_Luc_dien_Day_la_luc_tuong_tac_giua_cac_hat_dien_tu_trong_nguyen_tu_hoac_giua_cac_hat_mang_dien_Vi_du_nhu_luc_dien_tai_cac_cuc_nam_va_cuc_bac_cua_nam_cham\" title=\"&#8211; L\u1ef1c \u0111i\u1ec7n: \u0110\u00e2y l\u00e0 l\u1ef1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c h\u1ea1t \u0111i\u1ec7n t\u1eed trong nguy\u00ean t\u1eed ho\u1eb7c gi\u1eefa c\u00e1c h\u1ea1t mang \u0111i\u1ec7n. V\u00ed d\u1ee5 nh\u01b0 l\u1ef1c \u0111i\u1ec7n t\u1ea1i c\u00e1c c\u1ef1c nam v\u00e0 c\u1ef1c b\u1eafc c\u1ee7a nam ch\u00e2m.\">&#8211; L\u1ef1c \u0111i\u1ec7n: \u0110\u00e2y l\u00e0 l\u1ef1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c h\u1ea1t \u0111i\u1ec7n t\u1eed trong nguy\u00ean t\u1eed ho\u1eb7c gi\u1eefa c\u00e1c h\u1ea1t mang \u0111i\u1ec7n. V\u00ed d\u1ee5 nh\u01b0 l\u1ef1c \u0111i\u1ec7n t\u1ea1i c\u00e1c c\u1ef1c nam v\u00e0 c\u1ef1c b\u1eafc c\u1ee7a nam ch\u00e2m.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#-_Luc_ma_sat_Day_la_luc_tuong_tac_ngan_can_su_di_chuyen_cua_mot_vat_qua_mot_be_mat_khac_Vi_du_nhu_ma_sat_giua_banh_xe_va_mat_duong_khi_ban_keo_chiec_xe_dap\" title=\"&#8211; L\u1ef1c ma s\u00e1t: \u0110\u00e2y l\u00e0 l\u1ef1c t\u01b0\u01a1ng t\u00e1c ng\u0103n c\u1ea3n s\u1ef1 di chuy\u1ec3n c\u1ee7a m\u1ed9t v\u1eadt qua m\u1ed9t b\u1ec1 m\u1eb7t kh\u00e1c. V\u00ed d\u1ee5 nh\u01b0 ma s\u00e1t gi\u1eefa b\u00e1nh xe v\u00e0 m\u1eb7t \u0111\u01b0\u1eddng khi b\u1ea1n k\u00e9o chi\u1ebfc xe \u0111\u1ea1p.\">&#8211; L\u1ef1c ma s\u00e1t: \u0110\u00e2y l\u00e0 l\u1ef1c t\u01b0\u01a1ng t\u00e1c ng\u0103n c\u1ea3n s\u1ef1 di chuy\u1ec3n c\u1ee7a m\u1ed9t v\u1eadt qua m\u1ed9t b\u1ec1 m\u1eb7t kh\u00e1c. V\u00ed d\u1ee5 nh\u01b0 ma s\u00e1t gi\u1eefa b\u00e1nh xe v\u00e0 m\u1eb7t \u0111\u01b0\u1eddng khi b\u1ea1n k\u00e9o chi\u1ebfc xe \u0111\u1ea1p.<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#4_Luc_tuong_tac_truc_tiep\" title=\"4. L\u1ef1c t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp.\">4. L\u1ef1c t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#5_Luc_tuong_tac_khong_truc_tiep\" title=\"5. L\u1ee9c t\u01b0\u01a1ng t\u00e1c kh\u00f4ng tr\u1ee5c ti\u1ebfp.\">5. L\u1ee9c t\u01b0\u01a1ng t\u00e1c kh\u00f4ng tr\u1ee5c ti\u1ebfp.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#6_Phuong_va_chieu_cua_luc\" title=\"6. Ph\u01b0\u01a1ng v\u00e0 chi\u1ec1u c\u1ee7a l\u1ef1c.\">6. Ph\u01b0\u01a1ng v\u00e0 chi\u1ec1u c\u1ee7a l\u1ef1c.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#7_Hai_luc_can_bang_va_dac_diem_cua_chung\" title=\"7. Hai l\u1ee9c c\u00e2n b\u1eb1ng v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a ch\u00fang.\">7. Hai l\u1ee9c c\u00e2n b\u1eb1ng v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a ch\u00fang.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#8_Cach_nhan_biet_co_luc_tac_dung_vao_vat_hay_khong_Vi_du_minh_hoa\" title=\"8. C\u00e1ch nh\u1eadn bi\u1ebft c\u00f3 l\u1ef1c t\u00e1c d\u1ee5ng v\u00e0o v\u1eadt hay kh\u00f4ng? V\u00ed d\u1ee5 minh h\u1ecda.\">8. C\u00e1ch nh\u1eadn bi\u1ebft c\u00f3 l\u1ef1c t\u00e1c d\u1ee5ng v\u00e0o v\u1eadt hay kh\u00f4ng? V\u00ed d\u1ee5 minh h\u1ecda.<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#-_Thay_doi_trang_thai_chuyen_dong_Neu_vat_bi_thay_doi_trang_thai_chuyen_dong_di_chuyen_dung_lai_hoac_thay_doi_toc_do_dieu_nay_cho_thay_co_mot_luc_tac_dong_vao_vat\" title=\"&#8211; Thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i chuy\u1ec3n \u0111\u1ed9ng: N\u1ebfu v\u1eadt b\u1ecb thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i chuy\u1ec3n \u0111\u1ed9ng (di chuy\u1ec3n, d\u1eebng l\u1ea1i ho\u1eb7c thay \u0111\u1ed5i t\u1ed1c \u0111\u1ed9), \u0111i\u1ec1u n\u00e0y cho th\u1ea5y c\u00f3 m\u1ed9t l\u1ef1c t\u00e1c \u0111\u1ed9ng v\u00e0o v\u1eadt.\">&#8211; Thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i chuy\u1ec3n \u0111\u1ed9ng: N\u1ebfu v\u1eadt b\u1ecb thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i chuy\u1ec3n \u0111\u1ed9ng (di chuy\u1ec3n, d\u1eebng l\u1ea1i ho\u1eb7c thay \u0111\u1ed5i t\u1ed1c \u0111\u1ed9), \u0111i\u1ec1u n\u00e0y cho th\u1ea5y c\u00f3 m\u1ed9t l\u1ef1c t\u00e1c \u0111\u1ed9ng v\u00e0o v\u1eadt.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#-_Bien_dang_vat_Neu_vat_bi_bien_dang_hoac_bep_do_ap_luc_tu_ben_ngoai_dieu_nay_cung_cho_thay_co_mot_luc_tac_dong_vao_vat\" title=\"&#8211; Bi\u1ebfn d\u1ea1ng v\u1eadt: N\u1ebfu v\u1eadt b\u1ecb bi\u1ebfn d\u1ea1ng ho\u1eb7c b\u1eb9p do \u00e1p l\u1ef1c t\u1eeb b\u00ean ngo\u00e0i, \u0111i\u1ec1u n\u00e0y c\u0169ng cho th\u1ea5y c\u00f3 m\u1ed9t l\u1ef1c t\u00e1c \u0111\u1ed9ng v\u00e0o v\u1eadt.\">&#8211; Bi\u1ebfn d\u1ea1ng v\u1eadt: N\u1ebfu v\u1eadt b\u1ecb bi\u1ebfn d\u1ea1ng ho\u1eb7c b\u1eb9p do \u00e1p l\u1ef1c t\u1eeb b\u00ean ngo\u00e0i, \u0111i\u1ec1u n\u00e0y c\u0169ng cho th\u1ea5y c\u00f3 m\u1ed9t l\u1ef1c t\u00e1c \u0111\u1ed9ng v\u00e0o v\u1eadt.<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#9_Ket_qua_tac_dung_cua_luc_len_vat_va_vi_du_minh_hoa_cho_nhung_ket_qua_do\" title=\"9. K\u1ebft qu\u1ea3 t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c l\u00ean v\u1eadt v\u00e0 v\u00ed d\u1ee5 minh h\u1ecda cho nh\u1eefng k\u1ebft qu\u1ea3 \u0111\u00f3.\">9. K\u1ebft qu\u1ea3 t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c l\u00ean v\u1eadt v\u00e0 v\u00ed d\u1ee5 minh h\u1ecda cho nh\u1eefng k\u1ebft qu\u1ea3 \u0111\u00f3.<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#-_Di_chuyen_Luc_co_the_lam_cho_vat_di_chuyen_tu_mot_vi_tri_sang_vi_tri_khac_Vi_du_khi_ban_day_mot_chiec_xe_ban_ap_dung_mot_luc_de_lam_cho_no_di_chuyen\" title=\"&#8211; Di chuy\u1ec3n: L\u1ef1c c\u00f3 th\u1ec3 l\u00e0m cho v\u1eadt di chuy\u1ec3n t\u1eeb m\u1ed9t v\u1ecb tr\u00ed sang v\u1ecb tr\u00ed kh\u00e1c. V\u00ed d\u1ee5, khi b\u1ea1n \u0111\u1ea9y m\u1ed9t chi\u1ebfc xe, b\u1ea1n \u00e1p d\u1ee5ng m\u1ed9t l\u1ef1c \u0111\u1ec3 l\u00e0m cho n\u00f3 di chuy\u1ec3n.\">&#8211; Di chuy\u1ec3n: L\u1ef1c c\u00f3 th\u1ec3 l\u00e0m cho v\u1eadt di chuy\u1ec3n t\u1eeb m\u1ed9t v\u1ecb tr\u00ed sang v\u1ecb tr\u00ed kh\u00e1c. V\u00ed d\u1ee5, khi b\u1ea1n \u0111\u1ea9y m\u1ed9t chi\u1ebfc xe, b\u1ea1n \u00e1p d\u1ee5ng m\u1ed9t l\u1ef1c \u0111\u1ec3 l\u00e0m cho n\u00f3 di chuy\u1ec3n.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#-_Dung_lai_Luc_cung_co_the_lam_cho_vat_dung_lai_hoac_giu_o_trang_thai_yen_Vi_du_khi_ban_dat_mot_cuon_sach_len_ban_luc_hap_dan_giua_cuon_sach_va_ban_lam_cho_no_dung_lai\" title=\"&#8211; D\u1eebng l\u1ea1i: L\u1ef1c c\u0169ng c\u00f3 th\u1ec3 l\u00e0m cho v\u1eadt d\u1eebng l\u1ea1i ho\u1eb7c gi\u1eef \u1edf tr\u1ea1ng th\u00e1i y\u00ean. V\u00ed d\u1ee5, khi b\u1ea1n \u0111\u1eb7t m\u1ed9t cu\u1ed1n s\u00e1ch l\u00ean b\u00e0n, l\u1ef1c h\u1ea5p d\u1eabn gi\u1eefa cu\u1ed1n s\u00e1ch v\u00e0 b\u00e0n l\u00e0m cho n\u00f3 d\u1eebng l\u1ea1i.\">&#8211; D\u1eebng l\u1ea1i: L\u1ef1c c\u0169ng c\u00f3 th\u1ec3 l\u00e0m cho v\u1eadt d\u1eebng l\u1ea1i ho\u1eb7c gi\u1eef \u1edf tr\u1ea1ng th\u00e1i y\u00ean. V\u00ed d\u1ee5, khi b\u1ea1n \u0111\u1eb7t m\u1ed9t cu\u1ed1n s\u00e1ch l\u00ean b\u00e0n, l\u1ef1c h\u1ea5p d\u1eabn gi\u1eefa cu\u1ed1n s\u00e1ch v\u00e0 b\u00e0n l\u00e0m cho n\u00f3 d\u1eebng l\u1ea1i.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/luc-la-gi-2\/#-_Bien_dang_Luc_co_the_gay_ra_bien_dang_trong_cau_truc_cua_vat_Vi_du_khi_ban_ep_mot_qua_bong_luc_tac_dong_tu_tay_ban_se_bien_dang_qua_bong\" title=\"&#8211; Bi\u1ebfn d\u1ea1ng: L\u1ef1c c\u00f3 th\u1ec3 g\u00e2y ra bi\u1ebfn d\u1ea1ng trong c\u1ea5u tr\u00fac c\u1ee7a v\u1eadt. V\u00ed d\u1ee5, khi b\u1ea1n \u00e9p m\u1ed9t qu\u1ea3 b\u00f3ng, l\u1ef1c t\u00e1c \u0111\u1ed9ng t\u1eeb tay b\u1ea1n s\u1ebd bi\u1ebfn d\u1ea1ng qu\u1ea3 b\u00f3ng.\">&#8211; Bi\u1ebfn d\u1ea1ng: L\u1ef1c c\u00f3 th\u1ec3 g\u00e2y ra bi\u1ebfn d\u1ea1ng trong c\u1ea5u tr\u00fac c\u1ee7a v\u1eadt. V\u00ed d\u1ee5, khi b\u1ea1n \u00e9p m\u1ed9t qu\u1ea3 b\u00f3ng, l\u1ef1c t\u00e1c \u0111\u1ed9ng t\u1eeb tay b\u1ea1n s\u1ebd bi\u1ebfn d\u1ea1ng qu\u1ea3 b\u00f3ng.<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"1_Luc_la_gi\"><\/span>1. L\u1ef1c l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L\u1ef1c l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quan tr\u1ecdng trong v\u1eadt l\u00fd, n\u00f3 \u0111\u1ea1i di\u1ec7n cho s\u1ef1 t\u00e1c \u0111\u1ed9ng c\u1ee7a m\u1ed9t v\u1eadt l\u00ean m\u1ed9t v\u1eadt kh\u00e1c. L\u1ef1c c\u00f3 th\u1ec3 thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u1eadt, khi\u1ebfn n\u00f3 di chuy\u1ec3n ho\u1eb7c d\u1eebng l\u1ea1i. \u0110\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng c\u1ee7a l\u1ef1c l\u00e0 Newton (N).<\/p>\n<h2><span class=\"ez-toc-section\" id=\"2_Vi_du_ve_luc\"><\/span>2. V\u00ed d\u1ee5 v\u1ec1 l\u1ef1c.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>C\u00f3 nhi\u1ec1u v\u00ed d\u1ee5 c\u1ee5 th\u1ec3 v\u1ec1 l\u1ef1c trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y. M\u1ed9t v\u00ed d\u1ee5 \u0111\u01a1n gi\u1ea3n l\u00e0 vi\u1ec7c k\u00e9o m\u1ed9t chi\u1ebfc xe \u0111\u1ea1p. Khi b\u1ea1n k\u00e9o chi\u1ebfc xe, b\u1ea1n ph\u1ea3i \u00e1p d\u1ee5ng m\u1ed9t l\u1ef1c \u0111\u1ec3 v\u01b0\u1ee3t qua ma s\u00e1t gi\u1eefa b\u00e1nh xe v\u00e0 m\u1eb7t \u0111\u01b0\u1eddng, t\u1eeb \u0111\u00f3 t\u1ea1o ra m\u1ed9t l\u1ef1c \u0111\u1ee7 \u0111\u1ec3 di chuy\u1ec3n chi\u1ebfc xe.<\/p>\n<p>M\u1ed9t v\u00ed d\u1ee5 kh\u00e1c l\u00e0 khi b\u1ea1n nh\u1ea3y xu\u1ed1ng t\u1eeb m\u1ed9t b\u1ee5c cao. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a c\u01a1 th\u1ec3 b\u1ea1n t\u00e1c \u0111\u1ed9ng xu\u1ed1ng v\u00e0 t\u1ea1o ra l\u1ef1c h\u00fat t\u1eeb Tr\u00e1i \u0110\u1ea5t, khi\u1ebfn b\u1ea1n r\u01a1i xu\u1ed1ng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"3_Loai_luc\"><\/span>3. Lo\u1ea1i l\u1ef1c.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" alt=\"3. Lo\u1ea1i l\u1ef1c.\" src=\"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-content\/uploads\/2023\/09\/luc_la_gi_tong_quan_ve_khai_niem_luc_va_vi_du_minh_hoa.jpg\" style=\"text-align: center; clear: both; display: block; margin: 0 auto;\" title=\"3. Lo\u1ea1i l\u1ef1c.\"\/><\/p>\n<p>C\u00f3 nhi\u1ec1u lo\u1ea1i l\u1ef1c kh\u00e1c nhau trong v\u1eadt l\u00fd:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"-_Luc_hap_dan_Day_la_luc_tac_dong_giua_hai_vat_do_trong_luong_cua_chung_Vi_du_nhu_luc_hap_dan_giua_Trai_Dat_va_cac_vat_tren_mat_dat\"><\/span>&#8211; L\u1ef1c h\u1ea5p d\u1eabn: \u0110\u00e2y l\u00e0 l\u1ef1c t\u00e1c \u0111\u1ed9ng gi\u1eefa hai v\u1eadt do tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a ch\u00fang. V\u00ed d\u1ee5 nh\u01b0 l\u1ef1c h\u1ea5p d\u1eabn gi\u1eefa Tr\u00e1i \u0110\u1ea5t v\u00e0 c\u00e1c v\u1eadt tr\u00ean m\u1eb7t \u0111\u1ea5t.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"-_Luc_dien_Day_la_luc_tuong_tac_giua_cac_hat_dien_tu_trong_nguyen_tu_hoac_giua_cac_hat_mang_dien_Vi_du_nhu_luc_dien_tai_cac_cuc_nam_va_cuc_bac_cua_nam_cham\"><\/span>&#8211; L\u1ef1c \u0111i\u1ec7n: \u0110\u00e2y l\u00e0 l\u1ef1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c h\u1ea1t \u0111i\u1ec7n t\u1eed trong nguy\u00ean t\u1eed ho\u1eb7c gi\u1eefa c\u00e1c h\u1ea1t mang \u0111i\u1ec7n. V\u00ed d\u1ee5 nh\u01b0 l\u1ef1c \u0111i\u1ec7n t\u1ea1i c\u00e1c c\u1ef1c nam v\u00e0 c\u1ef1c b\u1eafc c\u1ee7a nam ch\u00e2m.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"-_Luc_ma_sat_Day_la_luc_tuong_tac_ngan_can_su_di_chuyen_cua_mot_vat_qua_mot_be_mat_khac_Vi_du_nhu_ma_sat_giua_banh_xe_va_mat_duong_khi_ban_keo_chiec_xe_dap\"><\/span>&#8211; L\u1ef1c ma s\u00e1t: \u0110\u00e2y l\u00e0 l\u1ef1c t\u01b0\u01a1ng t\u00e1c ng\u0103n c\u1ea3n s\u1ef1 di chuy\u1ec3n c\u1ee7a m\u1ed9t v\u1eadt qua m\u1ed9t b\u1ec1 m\u1eb7t kh\u00e1c. V\u00ed d\u1ee5 nh\u01b0 ma s\u00e1t gi\u1eefa b\u00e1nh xe v\u00e0 m\u1eb7t \u0111\u01b0\u1eddng khi b\u1ea1n k\u00e9o chi\u1ebfc xe \u0111\u1ea1p.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h2><span class=\"ez-toc-section\" id=\"4_Luc_tuong_tac_truc_tiep\"><\/span>4. L\u1ef1c t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L\u1ef1c t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp x\u1ea3y ra khi hai v\u1eadt ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi nhau v\u00e0 c\u00f3 th\u1ec3 chuy\u1ec3n giao n\u0103ng l\u01b0\u1ee3ng ho\u1eb7c thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a nhau. V\u00ed d\u1ee5, khi b\u1ea1n \u0111\u1ea9y m\u1ed9t qu\u1ea3 banh, b\u1ea1n \u00e1p d\u1ee5ng m\u1ed9t l\u1ef1c tr\u00ean qu\u1ea3 banh \u0111\u1ec3 n\u00f3 di chuy\u1ec3n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"5_Luc_tuong_tac_khong_truc_tiep\"><\/span>5. L\u1ee9c t\u01b0\u01a1ng t\u00e1c kh\u00f4ng tr\u1ee5c ti\u1ebfp.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L\u1ef1c t\u01b0\u01a1ng t\u00e1c kh\u00f4ng tr\u1ef1c ti\u1ebfp x\u1ea3y ra khi hai v\u1eadt kh\u00f4ng ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi nhau, nh\u01b0ng c\u00f3 s\u1ef1 t\u00e1c \u0111\u1ed9ng qua m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n trung gian. V\u00ed d\u1ee5, l\u1ef1c t\u1eeb nam ch\u00e2m c\u00f3 th\u1ec3 t\u00e1c \u0111\u1ed9ng l\u00ean m\u1ed9t chi\u1ebfc kim lo\u1ea1i m\u00e0 kh\u00f4ng c\u1ea7n ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"6_Phuong_va_chieu_cua_luc\"><\/span>6. Ph\u01b0\u01a1ng v\u00e0 chi\u1ec1u c\u1ee7a l\u1ef1c.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Ph\u01b0\u01a1ng c\u1ee7a l\u1ef1c ch\u1ec9 \u0111\u1ecbnh h\u01b0\u1edbng trong kh\u00f4ng gian m\u00e0 l\u1ef1c \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng. N\u00f3 c\u00f3 th\u1ec3 l\u00e0 theo chi\u1ec1u ngang, d\u1ecdc hay nghi\u00eang so v\u1edbi m\u1eb7t ph\u1eb3ng. Chi\u1ec1u c\u1ee7a l\u1ef1c ch\u1ec9 \u0111\u1ecbnh li\u1ec7u l\u1ef1c c\u00f3 h\u01b0\u1edbng \u0111i t\u1eeb v\u1eadt n\u00e0y sang v\u1eadt kh\u00e1c hay ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"7_Hai_luc_can_bang_va_dac_diem_cua_chung\"><\/span>7. Hai l\u1ee9c c\u00e2n b\u1eb1ng v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a ch\u00fang.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Hai l\u1ef1c c\u00e2n b\u1eb1ng l\u00e0 hai l\u1ef1c c\u00f3 c\u00f9ng gi\u00e1 tr\u1ecb nh\u01b0ng h\u01b0\u1edbng ng\u01b0\u1ee3c nhau. Khi hai l\u1ee9c c\u00e2n b\u1eb1ng t\u00e1c \u0111\u1ed9ng v\u00e0o m\u1ed9t v\u1eadt, t\u1ed5ng c\u00e1c l\u1ee9c n\u00e0y s\u1ebd l\u00e0m cho v\u1eadt gi\u1eef nguy\u00ean tr\u1ea1ng th\u00e1i chuy\u1ec3n \u0111\u1ed9ng ho\u1eb7c n\u1ebfu v\u1eadt \u0111ang y\u00ean, n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c gi\u1eef \u1edf tr\u1ea1ng th\u00e1i y\u00ean.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"8_Cach_nhan_biet_co_luc_tac_dung_vao_vat_hay_khong_Vi_du_minh_hoa\"><\/span>8. C\u00e1ch nh\u1eadn bi\u1ebft c\u00f3 l\u1ef1c t\u00e1c d\u1ee5ng v\u00e0o v\u1eadt hay kh\u00f4ng? V\u00ed d\u1ee5 minh h\u1ecda.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" alt=\"8. C\u00e1ch nh\u1eadn bi\u1ebft c\u00f3 l\u1ef1c t\u00e1c d\u1ee5ng v\u00e0o v\u1eadt hay kh\u00f4ng? V\u00ed d\u1ee5 minh h\u1ecda.\" src=\"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-content\/uploads\/2023\/09\/luc_la_gi_tong_quan_ve_khai_niem_luc_va_vi_du_minh_hoa.jpeg\" style=\"text-align: center; clear: both; display: block; margin: 0 auto;\" title=\"8. C\u00e1ch nh\u1eadn bi\u1ebft c\u00f3 l\u1ef1c t\u00e1c d\u1ee5ng v\u00e0o v\u1eadt hay kh\u00f4ng? V\u00ed d\u1ee5 minh h\u1ecda.\"\/><\/p>\n<p>C\u00f3 m\u1ed9t s\u1ed1 c\u00e1ch \u0111\u1ec3 nh\u1eadn bi\u1ebft c\u00f3 l\u1ef1c t\u00e1c \u0111\u1ed9ng v\u00e0o m\u1ed9t v\u1eadt:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"-_Thay_doi_trang_thai_chuyen_dong_Neu_vat_bi_thay_doi_trang_thai_chuyen_dong_di_chuyen_dung_lai_hoac_thay_doi_toc_do_dieu_nay_cho_thay_co_mot_luc_tac_dong_vao_vat\"><\/span>&#8211; Thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i chuy\u1ec3n \u0111\u1ed9ng: N\u1ebfu v\u1eadt b\u1ecb thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i chuy\u1ec3n \u0111\u1ed9ng (di chuy\u1ec3n, d\u1eebng l\u1ea1i ho\u1eb7c thay \u0111\u1ed5i t\u1ed1c \u0111\u1ed9), \u0111i\u1ec1u n\u00e0y cho th\u1ea5y c\u00f3 m\u1ed9t l\u1ef1c t\u00e1c \u0111\u1ed9ng v\u00e0o v\u1eadt.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"-_Bien_dang_vat_Neu_vat_bi_bien_dang_hoac_bep_do_ap_luc_tu_ben_ngoai_dieu_nay_cung_cho_thay_co_mot_luc_tac_dong_vao_vat\"><\/span>&#8211; Bi\u1ebfn d\u1ea1ng v\u1eadt: N\u1ebfu v\u1eadt b\u1ecb bi\u1ebfn d\u1ea1ng ho\u1eb7c b\u1eb9p do \u00e1p l\u1ef1c t\u1eeb b\u00ean ngo\u00e0i, \u0111i\u1ec1u n\u00e0y c\u0169ng cho th\u1ea5y c\u00f3 m\u1ed9t l\u1ef1c t\u00e1c \u0111\u1ed9ng v\u00e0o v\u1eadt.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h2><span class=\"ez-toc-section\" id=\"9_Ket_qua_tac_dung_cua_luc_len_vat_va_vi_du_minh_hoa_cho_nhung_ket_qua_do\"><\/span>9. K\u1ebft qu\u1ea3 t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c l\u00ean v\u1eadt v\u00e0 v\u00ed d\u1ee5 minh h\u1ecda cho nh\u1eefng k\u1ebft qu\u1ea3 \u0111\u00f3.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean m\u1ed9t v\u1eadt c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c k\u1ebft qu\u1ea3 sau:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"-_Di_chuyen_Luc_co_the_lam_cho_vat_di_chuyen_tu_mot_vi_tri_sang_vi_tri_khac_Vi_du_khi_ban_day_mot_chiec_xe_ban_ap_dung_mot_luc_de_lam_cho_no_di_chuyen\"><\/span>&#8211; Di chuy\u1ec3n: L\u1ef1c c\u00f3 th\u1ec3 l\u00e0m cho v\u1eadt di chuy\u1ec3n t\u1eeb m\u1ed9t v\u1ecb tr\u00ed sang v\u1ecb tr\u00ed kh\u00e1c. V\u00ed d\u1ee5, khi b\u1ea1n \u0111\u1ea9y m\u1ed9t chi\u1ebfc xe, b\u1ea1n \u00e1p d\u1ee5ng m\u1ed9t l\u1ef1c \u0111\u1ec3 l\u00e0m cho n\u00f3 di chuy\u1ec3n.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"-_Dung_lai_Luc_cung_co_the_lam_cho_vat_dung_lai_hoac_giu_o_trang_thai_yen_Vi_du_khi_ban_dat_mot_cuon_sach_len_ban_luc_hap_dan_giua_cuon_sach_va_ban_lam_cho_no_dung_lai\"><\/span>&#8211; D\u1eebng l\u1ea1i: L\u1ef1c c\u0169ng c\u00f3 th\u1ec3 l\u00e0m cho v\u1eadt d\u1eebng l\u1ea1i ho\u1eb7c gi\u1eef \u1edf tr\u1ea1ng th\u00e1i y\u00ean. V\u00ed d\u1ee5, khi b\u1ea1n \u0111\u1eb7t m\u1ed9t cu\u1ed1n s\u00e1ch l\u00ean b\u00e0n, l\u1ef1c h\u1ea5p d\u1eabn gi\u1eefa cu\u1ed1n s\u00e1ch v\u00e0 b\u00e0n l\u00e0m cho n\u00f3 d\u1eebng l\u1ea1i.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"-_Bien_dang_Luc_co_the_gay_ra_bien_dang_trong_cau_truc_cua_vat_Vi_du_khi_ban_ep_mot_qua_bong_luc_tac_dong_tu_tay_ban_se_bien_dang_qua_bong\"><\/span>&#8211; Bi\u1ebfn d\u1ea1ng: L\u1ef1c c\u00f3 th\u1ec3 g\u00e2y ra bi\u1ebfn d\u1ea1ng trong c\u1ea5u tr\u00fac c\u1ee7a v\u1eadt. V\u00ed d\u1ee5, khi b\u1ea1n \u00e9p m\u1ed9t qu\u1ea3 b\u00f3ng, l\u1ef1c t\u00e1c \u0111\u1ed9ng t\u1eeb tay b\u1ea1n s\u1ebd bi\u1ebfn d\u1ea1ng qu\u1ea3 b\u00f3ng.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>L\u1ef1c l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m v\u00f4 c\u00f9ng quan tr\u1ecdng trong khoa h\u1ecdc v\u00e0 cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y, \u0111\u00f3 l\u00e0 s\u1ef1 t\u00e1c \u0111\u1ed9ng g\u00e2y chuy\u1ec3n \u0111\u1ed9ng ho\u1eb7c thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i c\u1ee7a v\u1eadt. Hi\u1ec3u r\u00f5 v\u1ec1 c\u00e1c lo\u1ea1i l\u1ef1c v\u00e0 c\u00e1ch ch\u00fang ho\u1ea1t \u0111\u1ed9ng s\u1ebd gi\u00fap ch\u00fang ta \u00e1p d\u1ee5ng v\u00e0o nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau, t\u1eeb c\u01a1 h\u1ecdc cho \u0111\u1ebfn \u0111i\u1ec7n t\u1eed hay c\u01a1 kh\u00ed.<br \/>\n<iframe loading=\"lazy\" title=\"Khoa h\u1ecdc t\u1ef1 nhi\u00ean 6 - K\u1ebft n\u1ed1i tri th\u1ee9c | B\u00e0i 40: L\u1ef1c l\u00e0 g\u00ec - trang 145 - 146 (D\u1ec4 HI\u1ec2U NH\u1ea4T)\" width=\"790\" height=\"444\" src=\"https:\/\/www.youtube.com\/embed\/EqvEGVd24BU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u1ef1c l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quan tr\u1ecdng trong v\u1eadt l\u00fd, \u0111\u1ea1i di\u1ec7n cho s\u1ee9c m\u1ea1nh ho\u1eb7c hi\u1ec7u \u1ee9ng t\u00e1c \u0111\u1ed9ng l\u00ean v\u1eadt. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111o&#8230; <\/p>\n","protected":false},"author":1,"featured_media":28061,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[],"class_list":["post-28063","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-khai-niem-1"],"_links":{"self":[{"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/posts\/28063","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/comments?post=28063"}],"version-history":[{"count":0,"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/posts\/28063\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/media\/28061"}],"wp:attachment":[{"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/media?parent=28063"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/categories?post=28063"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/tags?post=28063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}