{"id":20820,"date":"2025-07-07T22:10:56","date_gmt":"2025-07-07T15:10:56","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=20820"},"modified":"2025-07-08T06:35:14","modified_gmt":"2025-07-07T23:35:14","slug":"tong-hop-toan-bo-cac-cong-thuc-vat-ly-7-can-nho","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/tong-hop-toan-bo-cac-cong-thuc-vat-ly-7-can-nho\/","title":{"rendered":"T\u1ed5ng h\u1ee3p to\u00e0n b\u1ed9 c\u00e1c c\u00f4ng th\u1ee9c v\u1eadt l\u00fd 7 c\u1ea7n nh\u1edb"},"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\/tong-hop-toan-bo-cac-cong-thuc-vat-ly-7-can-nho\/#Cong_thuc_vat_ly_7_hoc_ky_1\" >C\u00f4ng th\u1ee9c v\u1eadt l\u00fd 7 h\u1ecdc k\u1ef3 1<\/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\/tong-hop-toan-bo-cac-cong-thuc-vat-ly-7-can-nho\/#1_Cong_thuc_lien_quan_den_quang_hoc\" >1. C\u00f4ng th\u1ee9c li\u00ean quan \u0111\u1ebfn quang h\u1ecdc<\/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\/tong-hop-toan-bo-cac-cong-thuc-vat-ly-7-can-nho\/#2_Cong_thuc_lien_quan_den_hoc_am_thanh\" >2. C\u00f4ng th\u1ee9c li\u00ean quan \u0111\u1ebfn h\u1ecdc \u00e2m thanh<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/tong-hop-toan-bo-cac-cong-thuc-vat-ly-7-can-nho\/#Tom_tat_cong_thuc_vat_ly_7_hoc_ky_2\" >T\u00f3m t\u1eaft c\u00f4ng th\u1ee9c v\u1eadt l\u00fd 7 h\u1ecdc k\u1ef3 2<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/tong-hop-toan-bo-cac-cong-thuc-vat-ly-7-can-nho\/#3_Cong_thuc_lien_quan_den_dien\" >3. C\u00f4ng th\u1ee9c li\u00ean quan \u0111\u1ebfn \u0111i\u1ec7n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/tong-hop-toan-bo-cac-cong-thuc-vat-ly-7-can-nho\/#4_Cong_thuc_trao_doi_don_vi_do_dien_ap\" >4. C\u00f4ng th\u1ee9c trao \u0111\u1ed5i \u0111\u01a1n v\u1ecb \u0111o \u0111i\u1ec7n \u00e1p<\/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:\/\/www.ckconitsha.com\/vn\/tong-hop-toan-bo-cac-cong-thuc-vat-ly-7-can-nho\/#Bi_quyet_de_ghi_nho_7_cong_thuc_vat_ly_hieu_qua\" >B\u00ed quy\u1ebft \u0111\u1ec3 ghi nh\u1edb 7 c\u00f4ng th\u1ee9c v\u1eadt l\u00fd hi\u1ec7u qu\u1ea3<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p dir=\"ltr\">\u0110\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp th\u1ec3 ch\u1ea5t, kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ec3 bi\u1ebft c\u00e1ch \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c cho ph\u00f9 h\u1ee3p. \u0110\u1ec3 c\u00e1c sinh vi\u00ean nh\u1edb v\u00e0 s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c cho m\u1ed7i b\u00e0i h\u1ecdc linh ho\u1ea1t, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef \u0111\u00e3 t\u00f3m t\u1eaft c\u00e1c c\u00f4ng th\u1ee9c v\u1eadt l\u00fd 7 \u0111\u1ebfn ba ch\u01b0\u01a1ng quang h\u1ecdc, \u00e2m thanh v\u00e0 \u0111i\u1ec7n b\u00ean d\u01b0\u1edbi. B\u00e2y gi\u1edd ch\u00fang ta h\u00e3y t\u00ecm hi\u1ec3u v\u00e0 xem c\u00e1c v\u00ed d\u1ee5 c\u1ee5 th\u1ec3 c\u1ee7a t\u1eebng minh h\u1ecda m\u1ed9t ph\u1ea7n. <\/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=\"Cong_thuc_vat_ly_7_hoc_ky_1\"><\/span>C\u00f4ng th\u1ee9c v\u1eadt l\u00fd 7 h\u1ecdc k\u1ef3 1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Trong ch\u01b0\u01a1ng tr\u00ecnh V\u1eadt l\u00fd h\u1ecdc k\u1ef3 th\u1ee9 7, ch\u00fang ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c h\u1ecdc v\u00e0 quen thu\u1ed9c v\u1edbi c\u00e1c c\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n sau:<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"1_Cong_thuc_lien_quan_den_quang_hoc\"><\/span>1. C\u00f4ng th\u1ee9c li\u00ean quan \u0111\u1ebfn quang h\u1ecdc<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\/cac-cong-thuc-vat-ly-7-10.jpg\" alt=\"C\u00f4ng th\u1ee9c ch\u01b0\u01a1ng quang h\u1ecdc \u0111\u1ec3 nh\u1edb. (\u1ea2nh: Shutterstock.com)\" width=\"100%\"><\/p>\n<ol>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Kho\u1ea3ng c\u00e1ch t\u1eeb m\u1ed9t \u0111i\u1ec3m c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1ebfn g\u01b0\u01a1ng b\u1eb1ng kho\u1ea3ng c\u00e1ch t\u1eeb h\u00ecnh \u1ea3nh c\u1ee7a \u0111i\u1ec3m \u0111\u00f3 \u0111\u1ebfn g\u01b0\u01a1ng <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00f4ng th\u1ee9c cho g\u00f3c ph\u1ea3n x\u1ea1 v\u00e0 g\u00f3c t\u1edbi <\/p>\n<\/li>\n<\/ol>\n<p dir=\"ltr\">G\u00f3c ph\u1ea3n x\u1ea1 = g\u00f3c \u0111\u1ebfn <\/p>\n<table style=\"border-collapse: collapse;width: 100.019%;background-color: #c2e0f4;border-color: #4e4c50;border-style: solid\" border=\"1\">\n<tr>\n<td style=\"width: 98.9117%;text-align: center;border: 0.5px solid #4e4c50\">I = i &#039;<\/td>\n<\/tr>\n<\/table>\n<p dir=\"ltr\">\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/cac-cong-thuc-vat-ly-7-6.jpg\" alt=\"\" width=\"203\" height=\"155\"><\/p>\n<p dir=\"ltr\">Ghi ch\u00fa: <\/p>\n<ul>\n<li dir=\"ltr\">I &#039;: g\u00f3c ph\u1ea3n x\u1ea1 <\/li>\n<li dir=\"ltr\">I: G\u00f3c <\/li>\n<li dir=\"ltr\">Nn &#039;: \u0111i\u1ec7n tho\u1ea1i c\u1ed1 \u0111\u1ecbnh <\/li>\n<li dir=\"ltr\">SI: TIA \u0111\u1ebfn <\/li>\n<li dir=\"ltr\">IR: Ph\u1ea3n \u00e1nh <\/li>\n<\/ul>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5 th\u1ef1c h\u00e0nh t\u1ef7 l\u1ec7 m\u1eafc v\u00e0 g\u00f3c ph\u1ea3n x\u1ea1 <\/em><\/p>\n<p dir=\"ltr\"><em>M\u1ed9t tia ph\u00f9 h\u1ee3p v\u1edbi h\u01b0\u1edbng ngang l\u00e0 40 \u0111\u1ed9. T\u00ednh g\u00f3c v\u00e0 g\u00f3c ph\u1ea3n x\u1ea1 <\/em><\/p>\n<p dir=\"ltr\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i ph\u00e1p: <\/em><\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/cac-cong-thuc-vat-ly-7-3.jpg\" alt=\"\" width=\"300\" height=\"188\"><\/p>\n<p dir=\"ltr\"><em>Theo h\u00ecnh ch\u00fang t\u00f4i c\u00f3 m\u1ed9t g\u00f3c \u0111\u1ec3:<\/em><\/p>\n<p dir=\"ltr\"><em><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/tong-hop-kien-thuc-cong-thuc-vat-li-7-4.PNG\" alt=\"\" width=\"144\" height=\"24\"><\/em><\/p>\n<p dir=\"ltr\"><em>Nh\u01b0ng g\u00f3c ph\u1ea3n x\u1ea1 b\u1eb1ng v\u1edbi g\u00f3c \u0111\u1ebfn:<\/em><\/p>\n<p dir=\"ltr\"><em><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/tong-hop-kien-thuc-cong-thuc-vat-li-7-5.PNG\" alt=\"\" width=\"114\" height=\"25\"><\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"2_Cong_thuc_lien_quan_den_hoc_am_thanh\"><\/span>2. C\u00f4ng th\u1ee9c li\u00ean quan \u0111\u1ebfn h\u1ecdc \u00e2m thanh <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\/cac-cong-thuc-vat-ly-7-8.jpg\" alt=\"C\u00f4ng th\u1ee9c li\u00ean quan \u0111\u1ebfn vi\u1ec7c h\u1ecdc \u0111\u1ec3 ghi nh\u1edb. (\u1ea2nh: Shutterstock.com)\" width=\"100%\"><\/p>\n<ol>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00f4ng th\u1ee9c t\u00ednh to\u00e1n t\u1ea7n s\u1ed1 dao \u0111\u1ed9ng <\/p>\n<\/li>\n<\/ol>\n<table style=\"border-collapse: collapse;width: 100.019%;height: 22.3864px;background-color: #c2e0f4;border-color: #4e4c50;border-style: solid\" border=\"1\">\n<tr style=\"height: 22.3864px\">\n<td style=\"width: 98.9117%;text-align: center;border: 0.5px solid #4e4c50;height: 22.3864px\">f = n\/t (hz) <\/td>\n<\/tr>\n<\/table>\n<p dir=\"ltr\">C\u00f4ng th\u1ee9c li\u00ean quan: <\/p>\n<table style=\"border-collapse: collapse;width: 100.019%;background-color: #c2e0f4;border-color: #4e4c50;border-style: solid;height: 92.7812px\" border=\"1\">\n<tr style=\"height: 92.7812px\">\n<td style=\"width: 98.9117%;border: 0.5px solid #4e4c50;height: 92.7812px\">\n<p dir=\"ltr\" style=\"text-align: center\">T\u00ednh to\u00e1n s\u1ed1 dao \u0111\u1ed9ng: n = ft <\/p>\n<p dir=\"ltr\" style=\"text-align: center\">T\u00ednh th\u1eddi gian: t = n\/f<\/p>\n<\/td>\n<\/tr>\n<\/table>\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li dir=\"ltr\" role=\"presentation\">F: T\u1ea7n s\u1ed1 dao \u0111\u1ed9ng (HZ)<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">N: S\u1ed1 dao \u0111\u1ed9ng (Dao \u0111\u1ed9ng) <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">T: Th\u1eddi gian (th\u1ee9 hai) <\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf:<\/em><\/p>\n<p dir=\"ltr\"><em>\u0110\u1ed9ng v\u1eadt A \u0111\u00e3 th\u1ef1c hi\u1ec7n 600 bi\u1ebfn \u0111\u1ed9ng trong 20 gi\u00e2y, Object B \u0111\u00e3 th\u1ef1c hi\u1ec7n 750 bi\u1ebfn \u0111\u1ed9ng trong 30 gi\u00e2y. T\u00ednh t\u1ea7n s\u1ed1 dao \u0111\u1ed9ng c\u1ee7a m\u1ed7i \u0111\u1ed1i t\u01b0\u1ee3ng. <\/em><\/p>\n<p dir=\"ltr\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i ph\u00e1p: <\/em><\/p>\n<p dir=\"ltr\"><em>T\u1ea7n s\u1ed1 dao \u0111\u1ed9ng c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng A l\u00e0: f (a) = n\/t = 600\/20 = 30 (Hz) <\/em><\/p>\n<p dir=\"ltr\"><em>T\u1ea7n s\u1ed1 dao \u0111\u1ed9ng c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng B l\u00e0: f (b) = n\/t = 750\/30 = 25 (Hz) <\/em><\/p>\n<ol start=\"2\">\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">T\u00ednh kho\u1ea3ng c\u00e1ch, t\u1ed1c \u0111\u1ed9, th\u1eddi gian <\/p>\n<\/li>\n<\/ol>\n<table style=\"border-collapse: collapse;width: 100.019%;border-color: #4e4c50;border-style: solid\" border=\"1\">\n<tr>\n<td style=\"width: 48.9568%;text-align: center;border: 0.5px solid #4e4c50\">T\u00ednh kho\u1ea3ng c\u00e1ch <\/td>\n<td style=\"width: 48.9568%;text-align: center;border: 0.5px solid #4e4c50\">S = vt <\/td>\n<\/tr>\n<tr>\n<td style=\"width: 48.9568%;text-align: center;border: 0.5px solid #4e4c50\">T\u00ednh to\u00e1n v\u1eadn t\u1ed1c <\/td>\n<td style=\"width: 48.9568%;text-align: center;border: 0.5px solid #4e4c50\">V = s\/t <\/td>\n<\/tr>\n<tr>\n<td style=\"width: 48.9568%;text-align: center;border: 0.5px solid #4e4c50\">T\u00ednh th\u1eddi gian<\/td>\n<td style=\"width: 48.9568%;text-align: center;border: 0.5px solid #4e4c50\">T = s\/v <\/td>\n<\/tr>\n<\/table>\n<p dir=\"ltr\">Ghi ch\u00fa: <\/p>\n<ul>\n<li dir=\"ltr\">S: Kho\u1ea3ng c\u00e1ch \u0111\u1ec3 t\u00ednh to\u00e1n (\u0111\u01a1n v\u1ecb m, km, &#8230;) <\/li>\n<li dir=\"ltr\">V: V\u1eadn t\u1ed1c (m\/s ho\u1eb7c km\/h)<\/li>\n<li dir=\"ltr\">T: Th\u1eddi gian (gi\u00e2y, gi\u1edd &#8230;)<\/li>\n<\/ul>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: Gi\u1ea3 s\u1eed b\u1ea1n nghe th\u1ea5y Lightning sau 3 gi\u00e2y t\u1eeb nh\u00ecn th\u1ea5y Lightning, h\u00e3y t\u00ednh kho\u1ea3ng c\u00e1ch t\u1eeb n\u01a1i b\u1ea1n \u0111\u1ee9ng \u0111\u1ebfn Lightning Place. <\/em><\/p>\n<p dir=\"ltr\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i ph\u00e1p: <\/em><\/p>\n<p dir=\"ltr\"><em>Ch\u00fang ta c\u00f3 v\u1eadn t\u1ed1c c\u1ee7a truy\u1ec1n V = 340 m\/s<\/em><\/p>\n<p dir=\"ltr\"><em>V\u00ec v\u1eady, kho\u1ea3ng c\u00e1ch t\u1eeb ch\u1ed7 \u0111\u1ee9ng \u0111\u1ebfn n\u01a1i c\u00f3 s\u00e9t l\u00e0: s = vt = 340.3 = 1020 (m) <\/em><\/p>\n<ol start=\"3\">\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Kho\u1ea3ng c\u00e1ch v\u00e0 th\u1eddi gian truy\u1ec1n \u00e2m thanh<\/p>\n<\/li>\n<\/ol>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Kho\u1ea3ng c\u00e1ch x\u00e1c minh = kho\u1ea3ng c\u00e1ch \u00e2m + kho\u1ea3ng c\u00e1ch ph\u1ea3n x\u1ea1<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Kho\u1ea3ng c\u00e1ch \u00e2m l\u00e0 = kho\u1ea3ng c\u00e1ch c\u1ee7a ph\u1ea3n x\u1ea1<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Th\u1eddi gian \u0111\u1ec3 \u00e2m thanh = th\u1eddi gian ph\u1ea3n x\u1ea1<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Th\u1eddi gian truy\u1ec1n \u00e2m thanh = Th\u1eddi gian ti\u1ebfp theo + Th\u1eddi gian ph\u1ea3n x\u1ea1<\/p>\n<\/li>\n<\/ul>\n<ol start=\"4\">\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110\u1ec3 c\u00f3 ti\u1ebfng vang, th\u1eddi gian t\u1eeb \u00e2m thanh c\u1ee7a \u00e2m thanh \u0111\u1ebfn nh\u1eadn \u0111\u01b0\u1ee3c ph\u1ea3n x\u1ea1 t\u1ed1i thi\u1ec3u l\u00e0 1\/15s.<\/p>\n<\/li>\n<\/ol>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf: <\/em><\/p>\n<p dir=\"ltr\"><em>T\u00f4i ph\u1ea3i \u0111\u1ee9ng \u00edt nh\u1ea5t l\u00e0 c\u00e1ch xa ng\u1ecdn n\u00fai \u0111\u1ec3 c\u00f3 th\u1ec3 nghe th\u1ea5y gi\u1ecdng n\u00f3i c\u1ee7a t\u00f4i? Bi\u1ebft v\u1eadn t\u1ed1c c\u1ee7a \u00e2m thanh trong kh\u00f4ng kh\u00ed l\u00e0 340 m\/s.<\/em><\/p>\n<p dir=\"ltr\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i ph\u00e1p: <\/em><\/p>\n<p dir=\"ltr\"><em>\u0110\u1ed1i v\u1edbi Echo trong kh\u00f4ng kh\u00ed, th\u1eddi gian k\u1ec3 t\u1eeb khi \u00e2m thanh ph\u00e1t ra cho \u0111\u1ebfn khi \u00e2m thanh ph\u1ea3n x\u1ea1 \u00edt nh\u1ea5t l\u00e0 1\/15s. <\/em><\/p>\n<p dir=\"ltr\"><em>Trong kho\u1ea3ng th\u1eddi gian 1\/15 gi\u00e2y, \u00e2m thanh di chuy\u1ec3n m\u1ed9t kho\u1ea3ng c\u00e1ch: <\/em><\/p>\n<p dir=\"ltr\"><em>S = vt = 340m\/s. 1\/15S = 22.7 (m)<\/em><\/p>\n<p dir=\"ltr\"><em>Kho\u1ea3ng c\u00e1ch \u00e2m \u0111i v\u00e0 tr\u1ea3 l\u1ea1i hai l\u1ea7n kho\u1ea3ng c\u00e1ch t\u1eeb ng\u01b0\u1eddi \u0111\u1ebfn n\u00fai. V\u00ec v\u1eady, \u0111\u1ec3 nghe ti\u1ebfng vang c\u1ee7a gi\u1ecdng n\u00f3i c\u1ee7a b\u1ea1n, b\u1ea1n ph\u1ea3i \u0111\u1ee9ng \u00edt nh\u1ea5t l\u00e0 t\u1eeb ng\u1ecdn n\u00fai:<\/em><\/p>\n<p dir=\"ltr\"><em>d = 22.7: 2 = 11,35 (m)<\/em><\/p>\n<table style=\"border-collapse: collapse;width: 100%;background-color: #c2e0f4\" border=\"1\">\n<tr>\n<td style=\"width: 98.5189%\">\n<p style=\"text-align: center\">X\u00e2y d\u1ef1ng m\u1ed9t n\u1ec1n t\u1ea3ng to\u00e1n h\u1ecdc v\u1eefng ch\u1eafc cho tr\u1ebb em t\u1eeb khi c\u00f2n nh\u1ecf v\u1edbi \u0111a ph\u01b0\u01a1ng ti\u1ec7n, c\u1ef1c k\u1ef3 r\u1ebb c\u00f3 gi\u00e1 d\u01b0\u1edbi 2k\/ng\u00e0y v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9.<\/p>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia.monkeyuni.net\/upload\/web\/img\/nhantuvanmienphi.png\" alt=\"\" width=\"185\" height=\"36\"><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tom_tat_cong_thuc_vat_ly_7_hoc_ky_2\"><\/span>T\u00f3m t\u1eaft c\u00f4ng th\u1ee9c v\u1eadt l\u00fd 7 h\u1ecdc k\u1ef3 2 <span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">C\u00e1c c\u00f4ng th\u1ee9c 7 h\u1ecdc k\u1ef3 li\u00ean quan \u0111\u1ebfn c\u01b0\u1eddng \u0111\u1ed9 hi\u1ec7n t\u1ea1i v\u00e0 \u0111i\u1ec7n \u00e1p, tr\u1ebb em xem x\u00e9t c\u00e1c c\u00f4ng th\u1ee9c v\u00e0 b\u00e0i t\u1eadp d\u01b0\u1edbi \u0111\u00e2y. <\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"3_Cong_thuc_lien_quan_den_dien\"><\/span>3. C\u00f4ng th\u1ee9c li\u00ean quan \u0111\u1ebfn \u0111i\u1ec7n <span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/cac-cong-thuc-vat-ly-7-2.jpg\" alt=\"M\u1ea1ch \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i theo chu\u1ed7i v\u00e0 song song. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"800\"><\/p>\n<table style=\"border-collapse: collapse;width: 100.019%;height: 67.1592px;background-color: #fbeeb8;border-color: #4e4c50;border-style: solid\" border=\"1\">\n<tr style=\"height: 22.3864px\">\n<td style=\"width: 48.9568%;height: 22.3864px;border: 0.5px solid #4e4c50;background-color: #c2e0f4;text-align: center\">Trong m\u1ea1ch, c\u00f3 hai b\u00f3ng \u0111\u00e8n n\u1ed1i ti\u1ebfp <\/td>\n<td style=\"width: 48.9568%;height: 22.3864px;border: 0.5px solid #4e4c50;background-color: #c2e0f4;text-align: center\">Trong m\u1ea1ch, c\u00f3 hai b\u00f3ng \u0111\u00e8n song song <\/td>\n<\/tr>\n<tr style=\"height: 22.3864px\">\n<td style=\"width: 48.9568%;height: 22.3864px;border: 0.5px solid #4e4c50\">\n<p dir=\"ltr\">C\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a m\u1ea1ch b\u1eb1ng v\u1edbi d\u00f2ng \u0111i\u1ec7n trong \u0111\u00e8n <\/p>\n<p dir=\"ltr\" style=\"text-align: center\">I = i1 = i2 <\/p>\n<\/td>\n<td style=\"width: 48.9568%;height: 22.3864px;border: 0.5px solid #4e4c50\">\n<p dir=\"ltr\">C\u01b0\u1eddng \u0111\u1ed9 m\u1ea1ch ch\u00ednh b\u1eb1ng nhau <\/p>\n<p dir=\"ltr\" style=\"text-align: center\">I = i1 + i2 <\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 22.3864px\">\n<td style=\"width: 48.9568%;height: 22.3864px;border: 0.5px solid #4e4c50\">\n<p dir=\"ltr\">\u0110i\u1ec7n \u00e1p c\u1ee7a m\u1ea1ch b\u1eb1ng t\u1ed5ng \u0111i\u1ec7n \u00e1p tr\u00ean m\u1ed7i \u0111\u00e8n <\/p>\n<p dir=\"ltr\" style=\"text-align: center\">U = u1 + u2 <\/p>\n<\/td>\n<td style=\"width: 48.9568%;height: 22.3864px;border: 0.5px solid #4e4c50\">\n<p dir=\"ltr\">\u0110i\u1ec7n \u00e1p gi\u1eefa hai \u0111\u1ea7u c\u1ee7a \u0111\u00e8n song song<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">U = u1 = u2 <\/p>\n<\/td>\n<\/tr>\n<\/table>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5 \u00e1p d\u1ee5ng: <\/em><\/p>\n<p dir=\"ltr\"><em>C\u00e2u 1: C\u00f3 5 ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng l\u00e0 1,5 V; 3 V; 6 V; 9 V, 12 V. v\u00e0 hai b\u00f3ng \u0111\u00e8n gi\u1ed1ng nhau l\u00e0 3 V. C\u1ea7n k\u1ebft n\u1ed1i hai \u0111\u00e8n n\u00e0y th\u00e0nh m\u1ed9t trong n\u0103m ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng \u1edf tr\u00ean, ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng n\u00e0o ph\u00f9 h\u1ee3p nh\u1ea5t? T\u1ea1i sao? <\/em><\/p>\n<p dir=\"ltr\"><em>Tr\u1ea3 l\u1eddi: S\u1eed d\u1ee5ng s\u1ee9c m\u1ea1nh 6V l\u00e0 h\u1ee3p l\u00fd nh\u1ea5t. B\u1edfi v\u00ec khi k\u1ebft n\u1ed1i hai b\u00f3ng \u0111\u00e8n n\u1ed1i ti\u1ebfp, t\u1ed5ng \u0111i\u1ec7n \u00e1p trong m\u1ea1ch b\u1eb1ng t\u1ed5ng c\u1ee7a \u0111i\u1ec7n \u00e1p c\u1ee7a hai \u0111\u00e8n v\u00e0 b\u1eb1ng 6V. <\/em><\/p>\n<p dir=\"ltr\"><em>C\u00e2u 2: Tr\u00ean b\u00f3ng \u0111\u00e8n v\u1edbi 6V. Khi \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf hai \u0111\u1ea7u c\u1ee7a b\u00f3ng \u0111\u00e8n U1 = 4V n\u00e0y, d\u00f2ng \u0111i\u1ec7n ch\u1ea3y qua \u00e1nh s\u00e1ng v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 i1, khi \u0111\u1eb7t \u0111i\u1ec7n \u00e1p u2 = 5V, d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua \u00e1nh s\u00e1ng v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 i2 <\/em><\/p>\n<p dir=\"ltr\"><em>A, so s\u00e1nh i1 v\u00e0 i2 <\/em><\/p>\n<p dir=\"ltr\"><em>B, ph\u1ea3i \u0111\u1eb7t \u1edf hai \u0111\u1ea7u c\u1ee7a b\u00f3ng \u0111\u00e8n m\u1ed9t \u0111i\u1ec7n \u00e1p b\u1eb1ng v\u1edbi m\u1ee9c \u0111\u1ed9 s\u00e1ng b\u00ecnh th\u01b0\u1eddng l\u00e0 bao nhi\u00eau? T\u1ea1i sao? <\/em><\/p>\n<p dir=\"ltr\"><em>H\u1ed3i \u0111\u00e1p: <\/em><\/p>\n<p dir=\"ltr\"><em>A, i1 <\/em><\/p>\n<p dir=\"ltr\"><em>B, ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf hai \u0111\u1ea7u c\u1ee7a b\u00f3ng \u0111\u00e8n U = 6V, \u00e1nh s\u00e1ng l\u00e0 b\u00ecnh th\u01b0\u1eddng v\u00ec u = 6V l\u00e0 \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c cho b\u00f3ng \u0111\u00e8n b\u00ecnh th\u01b0\u1eddng. <\/em><\/p>\n<p dir=\"ltr\"><em>C\u00e2u 3: C\u00f3 3 ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng l\u00e0 12V, 6V, 3V v\u00e0 hai b\u00f3ng \u0111\u00e8n c\u00f9ng lo\u1ea1i. H\u1ecfi c\u00f3 th\u1ec3 b\u1ecb k\u1eb9t song song v\u1edbi hai b\u00f3ng \u0111\u00e8n n\u00e0y v\u00e0 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i th\u00e0nh m\u1ed9t m\u1ea1ch k\u00edn v\u1edbi ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng tr\u00ean cho hai b\u00f3ng \u0111\u00e8n b\u00ecnh th\u01b0\u1eddng? <\/em><\/p>\n<p dir=\"ltr\"><em>Tr\u1ea3 l\u1eddi: N\u1ebfu ch\u00fang ta c\u00f3 ngu\u1ed3n \u0111i\u1ec7n 6V, 2 b\u00f3ng \u0111\u00e8n b\u00ecnh th\u01b0\u1eddng v\u00ec m\u1ea1ch song song, v\u00ec v\u1eady \u0111i\u1ec7n \u00e1p tr\u00ean m\u1ed7i \u0111\u00e8n l\u00e0 6V<\/em><\/p>\n<p dir=\"ltr\"><em>C\u00e2u 4: Tr\u00ean h\u1ea7u h\u1ebft c\u00e1c b\u00f3ng \u0111\u00e8n, qu\u1ea1t \u0111i\u1ec7n v\u00e0 c\u00e1c d\u1ee5ng c\u1ee5 \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong gia \u0111\u00ecnh l\u00e0 220V. H\u1ecfi khi c\u00e1c c\u00f4ng c\u1ee5 n\u00e0y ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, \u0111i\u1ec7n \u00e1p gi\u1eefa hai \u0111\u1ea7u c\u1ee7a c\u00f4ng c\u1ee5 l\u00e0 bao nhi\u00eau? <\/em><\/p>\n<p dir=\"ltr\"><em>Tr\u1ea3 l\u1eddi: \u0110i\u1ec7n \u00e1p gi\u1eefa hai \u0111\u1ea7u l\u00e0 220 V<\/em><\/p>\n<p dir=\"ltr\"><em>C\u00e2u 5: Trong m\u1ea1ch, c\u00f3 m\u1ed9t s\u01a1 \u0111\u1ed3 nh\u01b0 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb, ampe k\u1ebf c\u00f3 m\u1ed9t s\u1ed1 i = 0,54a. Bi\u1ebft \u0111\u01b0\u1ee3c c\u01b0\u1eddng \u0111\u1ed9 \u0111i qua \u0111\u00e8n \u01101 l\u1edbn h\u01a1n g\u1ea5p \u0111\u00f4i so v\u1edbi d\u00f2ng \u0111i\u1ec7n \u0111i qua \u0111\u00e8n<\/em><\/p>\n<p dir=\"ltr\"><em><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/cac-cong-thuc-vat-ly-7-1.jpg\" alt=\"\" width=\"290\" height=\"226\"><\/em><\/p>\n<p dir=\"ltr\"><em>A, T\u00ednh c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a I1 v\u00e0 I2 hi\u1ec7n t\u1ea1i, t\u01b0\u01a1ng \u1ee9ng v\u01b0\u1ee3t qua \u0111\u00e8n D1 v\u00e0 D2<\/em><\/p>\n<p dir=\"ltr\"><em>B, So s\u00e1nh \u0111i\u1ec7n \u00e1p gi\u1eefa hai \u0111\u1ea7u c\u1ee7a \u0111\u00e8n \u01101 v\u00e0 \u01102<\/em><\/p>\n<p dir=\"ltr\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i ph\u00e1p: <\/em><\/p>\n<p dir=\"ltr\"><em>A, theo v\u1ea5n \u0111\u1ec1 ch\u00fang ta c\u00f3 i1 = 2.i2 <\/em><\/p>\n<p dir=\"ltr\"><em>V\u00ec \u0111\u00e8n \u01101 song song v\u1edbi \u0111\u00e8n \u01102, i = i1 + i2 = 2.i2 + i2 = 3.i2 <\/em><\/p>\n<p dir=\"ltr\"><em>0,54 A = 3.I2 <\/em><\/p>\n<p dir=\"ltr\"><em>=&gt; I2 = 0.18 (a) <\/em><\/p>\n<p dir=\"ltr\"><em>=&gt; I1 = 2.0,18 = 0,36 (a) <\/em><\/p>\n<p dir=\"ltr\"><em>B, v\u00ec \u00e1nh s\u00e1ng 1 b\u1ecb k\u1eb9t song song v\u1edbi \u00e1nh s\u00e1ng 2, u1 = u2 <\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"4_Cong_thuc_trao_doi_don_vi_do_dien_ap\"><\/span>4. C\u00f4ng th\u1ee9c trao \u0111\u1ed5i \u0111\u01a1n v\u1ecb \u0111o \u0111i\u1ec7n \u00e1p <span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table style=\"border-collapse: collapse;width: 100.019%;background-color: #c2e0f4;border-color: #4e4c50;border-style: solid\" border=\"1\">\n<tr>\n<td style=\"width: 98.9117%;border: 0.5px solid #4e4c50\">\n<p dir=\"ltr\" style=\"text-align: center\">1 mV = 0,001 V<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">1 kV = 1000 V<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">1 v = 1000 mV <\/p>\n<\/td>\n<\/tr>\n<\/table>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5 \u00e1p d\u1ee5ng: <\/em><\/p>\n<p dir=\"ltr\"><em>Thay \u0111\u1ed5i \u0111\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng c\u1ee7a c\u00e1c gi\u00e1 tr\u1ecb sau <\/em><\/p>\n<p dir=\"ltr\"><em>A, 500 kV = M\u1ea1nh. V <\/em><\/p>\n<p dir=\"ltr\"><em>B, 220 V =\u2026 ..kv <\/em><\/p>\n<p dir=\"ltr\"><em>C, 0,5 V = &#8230; .. MV <\/em><\/p>\n<p dir=\"ltr\"><em>D, 9 kV = M\u1ea1nh. V <\/em><\/p>\n<p dir=\"ltr\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i ph\u00e1p: <\/em><\/p>\n<p dir=\"ltr\"><em>A &#8211; 500.000 V<\/em><\/p>\n<p dir=\"ltr\"><em>B &#8211; 0, 220 kV<\/em><\/p>\n<p dir=\"ltr\"><em>C &#8211; 500 mV <\/em><\/p>\n<p dir=\"ltr\"><em>D &#8211; 6000 V<\/em><\/p>\n<p dir=\"ltr\">\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bi_quyet_de_ghi_nho_7_cong_thuc_vat_ly_hieu_qua\"><\/span>B\u00ed quy\u1ebft \u0111\u1ec3 ghi nh\u1edb 7 c\u00f4ng th\u1ee9c v\u1eadt l\u00fd hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Ghi nh\u1edb v\u00e0 hi\u1ec3u c\u00e1c c\u00f4ng th\u1ee9c v\u1eadt l\u00fd l\u1edbp 7 l\u00e0 ti\u1ec1n \u0111\u1ec1 \u0111\u1ec3 h\u1ed7 tr\u1ee3 h\u1ecdc sinh gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp ch\u00ednh x\u00e1c, c\u0169ng nh\u01b0 c\u00e1c \u1ee9ng d\u1ee5ng hi\u1ec7u qu\u1ea3 h\u01a1n. V\u00ec v\u1eady, \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 m\u1eb9o m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o \u0111\u1ec3 h\u1ed7 tr\u1ee3 ghi nh\u1edb c\u00f4ng th\u1ee9c t\u1ed1t h\u01a1n:<\/p>\n<ul>\n<li dir=\"ltr\">\u1ede \u0111\u00e2u \u0111\u1ec3 h\u1ecdc c\u00e1ch hi\u1ec3u: Thay v\u00ec h\u1ecdc c\u00f4ng th\u1ee9c theo c\u00e1ch lan truy\u1ec1n, cho \u0111\u1ebfn khi k\u1ef3 thi m\u1edbi t\u00ecm ki\u1ebfm c\u00f4ng th\u1ee9c, r\u1ea5t nhanh \u0111\u1ec3 qu\u00ean, b\u1ea1n n\u00ean t\u00ecm hi\u1ec3u t\u1eebng c\u00f4ng th\u1ee9c v\u00e0 sau \u0111\u00f3 chuy\u1ec3n sang ki\u1ebfn \u200b\u200bth\u1ee9c m\u1edbi.<\/li>\n<li dir=\"ltr\">H\u1ecdc v\u1edbi th\u1ef1c ti\u1ec5n l\u00e0 r\u1ea5t quan tr\u1ecdng: sau m\u1ed7i b\u00e0i h\u1ecdc l\u00fd thuy\u1ebft trong l\u1edbp, h\u1ecd n\u00ean d\u00e0nh th\u1eddi gian \u0111\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 ki\u1ebfn \u200b\u200bth\u1ee9c h\u1ecd \u0111\u00e3 h\u1ecdc, l\u00e0m b\u00e0i t\u1eadp v\u1ec1 nh\u00e0, t\u00ecm hi\u1ec3u th\u00eam ki\u1ebfn \u200b\u200bth\u1ee9c m\u1edbi v\u1ec1 Internet, th\u1ef1c h\u00e0nh ch\u1ee7 \u0111\u1ec1, &#8230; s\u1ebd gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ghi nh\u1edb c\u00f4ng th\u1ee9c t\u1ed1t h\u01a1n.<\/li>\n<li dir=\"ltr\">\u00c1p d\u1ee5ng c\u00e1c quy t\u1eafc khi h\u1ecdc c\u00f4ng th\u1ee9c: M\u1ed7i c\u00f4ng th\u1ee9c s\u1ebd lu\u00f4n c\u00f3 c\u00e1c quy t\u1eafc ri\u00eang, v\u00ec v\u1eady thay v\u00ec h\u1ecdc v\u1eb9t, m\u1ed7i d\u1ea5u hi\u1ec7u, h\u1ecd n\u00ean d\u1ef1a v\u00e0o c\u00e1c quy t\u1eafc c\u1ee7a v\u1ea5n \u0111\u1ec1 \u0111\u1ec3 suy lu\u1eadn c\u00f4ng th\u1ee9c, c\u0169ng nh\u01b0 d\u1ef1a v\u00e0o v\u00ed d\u1ee5 \u0111\u1ec3 suy ra c\u00e1c quy t\u1eafc c\u1ee7a h\u1ecd \u0111\u1ec3 gi\u00fap h\u1ecdc h\u1ecfi t\u1ed1t h\u01a1n.<\/li>\n<\/ul>\n<p dir=\"ltr\">B\u00e0i b\u00e1o tr\u00ean \u0111\u00e3 t\u00f3m t\u1eaft t\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng th\u1ee9c v\u1eadt l\u00fd 7, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef hy v\u1ecdng r\u1eb1ng h\u1ecd \u0111\u00e3 hi\u1ec3u v\u00e0 bi\u1ebft c\u00e1c c\u00f4ng th\u1ee9c n\u00e0y \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp th\u1ec3 ch\u1ea5t th\u00e0nh th\u1ea1o. \u0110\u1ec3 xem x\u00e9t l\u00fd thuy\u1ebft v\u1eadt l\u00fd \u0111\u1ea7y \u0111\u1ee7 nh\u1ea5t, h\u00e3y l\u00e0m theo ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n ngay b\u00e2y gi\u1edd! <\/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>\u0110\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp th\u1ec3 ch\u1ea5t, kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ec3 bi\u1ebft c\u00e1ch \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c cho ph\u00f9 h\u1ee3p. \u0110\u1ec3 c\u00e1c sinh vi\u00ean nh\u1edb v\u00e0 s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c cho m\u1ed7i b\u00e0i h\u1ecdc linh ho\u1ea1t, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef \u0111\u00e3 t\u00f3m t\u1eaft c\u00e1c c\u00f4ng th\u1ee9c v\u1eadt l\u00fd 7 \u0111\u1ebfn ba&#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-20820","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/20820","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=20820"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/20820\/revisions"}],"predecessor-version":[{"id":24969,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/20820\/revisions\/24969"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=20820"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=20820"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=20820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}