{"id":20860,"date":"2025-07-07T23:00:53","date_gmt":"2025-07-07T16:00:53","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=20860"},"modified":"2025-07-07T23:00:53","modified_gmt":"2025-07-07T16:00:53","slug":"ly-thuyet-va-thuc-hanh-chong-o-nhiem-tieng-on-vat-ly-7","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/ly-thuyet-va-thuc-hanh-chong-o-nhiem-tieng-on-vat-ly-7\/","title":{"rendered":"L\u00fd thuy\u1ebft v\u00e0 th\u1ef1c h\u00e0nh ch\u1ed1ng \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n v\u1eadt l\u00fd 7"},"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\/ly-thuyet-va-thuc-hanh-chong-o-nhiem-tieng-on-vat-ly-7\/#O_nhiem_tieng_on_la_gi\" >\u00d4 nhi\u1ec5m ti\u1ebfng \u1ed3n 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:\/\/www.ckconitsha.com\/vn\/ly-thuyet-va-thuc-hanh-chong-o-nhiem-tieng-on-vat-ly-7\/#Cac_tac_dong_co_hai_cua_o_nhiem_tieng_on\" >C\u00e1c t\u00e1c \u0111\u1ed9ng c\u00f3 h\u1ea1i c\u1ee7a \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/ly-thuyet-va-thuc-hanh-chong-o-nhiem-tieng-on-vat-ly-7\/#Lam_the_nao_de_ngan_ngua_o_nhiem_tieng_on\" >L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n<\/a><\/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\/ly-thuyet-va-thuc-hanh-chong-o-nhiem-tieng-on-vat-ly-7\/#Giai_quyet_cac_bai_tap_gay_o_nhiem_chong_lai\" >Gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp g\u00e2y \u00f4 nhi\u1ec5m ch\u1ed1ng l\u1ea1i<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p dir=\"ltr\">M\u1ecdi ng\u01b0\u1eddi c\u00f3 kh\u1ea3 n\u0103ng nh\u1eadn ra \u00e2m thanh xung quanh cu\u1ed9c s\u1ed1ng l\u00e0 tuy\u1ec7t v\u1eddi. Nh\u1edd \u00e2m thanh, ch\u00fang t\u00f4i nghe th\u1ea5y \u00e2m nh\u1ea1c, chim h\u00e1t, n\u00f3i chuy\u1ec7n &#8230; nh\u01b0ng trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p b\u1ea1n nghe th\u1ea5y \u00e2m thanh r\u1ea5t \u1ed3n \u00e0o v\u00e0 k\u00e9o d\u00e0i? Ch\u1eafc ch\u1eafn t\u1ea5t c\u1ea3 ch\u00fang ta \u0111\u1ec1u c\u1ea3m th\u1ea5y kh\u00f4ng tho\u1ea3i m\u00e1i, nh\u1eefng \u00e2m thanh \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn cu\u1ed9c s\u1ed1ng c\u1ee7a con ng\u01b0\u1eddi nh\u01b0 v\u1eady \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ti\u1ebfng \u1ed3n. \u0110\u00e2y c\u0169ng l\u00e0 ch\u1ee7 \u0111\u1ec1 m\u00e0 Kh\u1ec9 mang \u0111\u1ebfn cho b\u1ea1n ng\u00e0y h\u00f4m nay: \u00d4 nhi\u1ec5m ch\u1ed1ng l\u1ea1i. Th\u00f4ng qua \u0111i\u1ec1u n\u00e0y, ch\u00fang t\u00f4i t\u00ecm ra ti\u1ebfng \u1ed3n l\u00e0 g\u00ec, ch\u00fang g\u00e2y h\u1ea1i v\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 gi\u1ea3m ti\u1ebfng \u1ed3n. <\/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=\"O_nhiem_tieng_on_la_gi\"><\/span>\u00d4 nhi\u1ec5m ti\u1ebfng \u1ed3n l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/chong-o-nhiem-tieng-on.jpg\" alt=\"\u00d4 nhi\u1ec5m ti\u1ebfng \u1ed3n k\u00e9o d\u00e0i \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u00fang t\u00f4i. (\u1ea2nh: Canva.com)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">M\u1eb7c d\u00f9 ch\u00fang t\u00f4i ch\u01b0a bi\u1ebft v\u1ec1 \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n l\u00e0 g\u00ec, ch\u1eafc ch\u1eafn t\u1ea5t c\u1ea3 m\u1ecdi ng\u01b0\u1eddi trong ch\u00fang t\u00f4i \u0111\u1ec1u nh\u1eadn ra v\u1ea5n \u0111\u1ec1 ti\u1ebfng \u1ed3n trong cu\u1ed9c s\u1ed1ng. V\u00ed d\u1ee5, khi b\u1ea1n \u0111ang h\u1ecdc, c\u00f3 nh\u1eefng ng\u01b0\u1eddi m\u1edf m\u1ed9t b\u1ea3n nh\u1ea1c l\u1edbn b\u00ean ngo\u00e0i ng\u00f4i nh\u00e0 m\u00e0 b\u1ea1n kh\u00f4ng th\u1ec3 t\u1eadp trung v\u00e0o vi\u1ec7c h\u1ecdc. M\u1ed9t v\u00ed d\u1ee5 kh\u00e1c, m\u1ed9t l\u1edbp h\u1ecdc n\u1eb1m ngay b\u00ean c\u1ea1nh ch\u1ee3, l\u1edbp h\u1ecdc c\u0169ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi ti\u1ebfng \u1ed3n tr\u00ean th\u1ecb tr\u01b0\u1eddng. M\u1ecdi ng\u01b0\u1eddi g\u1ecdi c\u00e1c tr\u01b0\u1eddng h\u1ee3p t\u01b0\u01a1ng t\u1ef1 n\u00ean \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n. <\/p>\n<p dir=\"ltr\">V\u00ec v\u1eady, b\u1ea5t c\u1ee9 khi n\u00e0o tr\u1eddi m\u01b0a nhi\u1ec1u, c\u00f3 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng s\u1ea5m s\u00e9t, \u0111\u00f3 c\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t ti\u1ebfng \u1ed3n kh\u00f4ng? Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, ch\u00fang t\u00f4i kh\u00f4ng coi \u00e2m thanh c\u1ee7a s\u1ea5m s\u00e9t l\u00e0 ti\u1ebfng \u1ed3n v\u00ec s\u1ea5m s\u00e9t v\u00e0 s\u00e9t kh\u00f4ng k\u00e9o d\u00e0i \u0111\u1ec3 g\u00e2y h\u1ea1i cho s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi (n\u00f3 ch\u1ec9 h\u01a1i \u1ed3n \u00e0o).<\/p>\n<p dir=\"ltr\">Th\u00f4ng qua ph\u00e2n t\u00edch v\u00ed d\u1ee5 tr\u00ean, ch\u00fang ta c\u00f3 th\u1ec3 k\u1ebft lu\u1eadn \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n l\u00e0 g\u00ec? <\/p>\n<p dir=\"ltr\">\u00d4 nhi\u1ec5m ti\u1ebfng \u1ed3n l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng ti\u1ebfng \u1ed3n r\u1ea5t l\u1edbn v\u00e0 k\u00e9o d\u00e0i \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn c\u00e1c ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng ho\u1eb7c s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi. <\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5 v\u1ec1 ngu\u1ed3n \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n xung quanh cu\u1ed9c s\u1ed1ng c\u1ee7a con ng\u01b0\u1eddi<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ti\u1ebfng \u1ed3n t\u1eeb v\u1eadn chuy\u1ec3n<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ti\u1ebfng \u1ed3n ph\u00e1t ra t\u1eeb c\u00e1c c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng: M\u00e1y khoan, m\u1edd, m\u00e1y n\u1eb7ng ph\u00e1t ra \u00e2m thanh &#8230;<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ti\u1ebfng \u1ed3n x\u1ea3y ra t\u1ea1i c\u00e1c s\u00e2n bay <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ti\u1ebfng \u1ed3n t\u1ea1i n\u01a1i l\u00e0m vi\u1ec7c do kh\u00f4ng gian m\u1edf <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ti\u1ebfng \u1ed3n t\u1eeb m\u00e1y m\u00f3c trong c\u00e1c c\u00f4ng vi\u00ean c\u00f4ng nghi\u1ec7p: qu\u1ea1t, m\u00e1y ph\u00e1t \u0111i\u1ec7n ..<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ti\u1ebfng \u1ed3n t\u1eeb c\u00e1c ho\u1ea1t \u0111\u1ed9ng trong nh\u00e0: Khi s\u1eed d\u1ee5ng tivi, m\u00e1y h\u00fat b\u1ee5i, m\u00e1y gi\u1eb7t, &#8230;<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ti\u1ebfng \u1ed3n t\u1eeb c\u00e1c \u0111\u1ecba \u0111i\u1ec3m: T\u1ed5 ch\u1ee9c ph\u00e1o hoa, s\u1eed d\u1ee5ng ch\u1ea5t n\u1ed5, ph\u00e1o, &#8230;<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_tac_dong_co_hai_cua_o_nhiem_tieng_on\"><\/span>C\u00e1c t\u00e1c \u0111\u1ed9ng c\u00f3 h\u1ea1i c\u1ee7a \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n <span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">N\u1ebfu b\u1ea1n g\u1eb7p ph\u1ea3i m\u1ed9t m\u00f4i tr\u01b0\u1eddng \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n xung quanh b\u1ea1n, h\u00e3y c\u1ea9n th\u1eadn, b\u1edfi v\u00ec \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n l\u00e2u d\u00e0i l\u00e0 v\u00f4 c\u00f9ng nguy hi\u1ec3m \u0111\u1ed1i v\u1edbi s\u1ee9c kh\u1ecfe c\u0169ng nh\u01b0 \u0111\u1eddi s\u1ed1ng tinh th\u1ea7n c\u1ee7a ch\u00fang ta. C\u1ee5 th\u1ec3, c\u00e1c t\u00e1c \u0111\u1ed9ng c\u00f3 h\u1ea1i c\u1ee7a \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp, ch\u1eb3ng h\u1ea1n nh\u01b0: <\/p>\n<p dir=\"ltr\">\u0110i\u1ec3m y\u1ebfu v\u1ec1 tinh th\u1ea7n, m\u1ea5t ng\u1ee7 <\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/chong-o-nhiem-tieng-on-1.jpg\" alt=\"M\u1ea5t ng\u1ee7 khi\u1ebfn m\u1ecdi ng\u01b0\u1eddi m\u1ec7t m\u1ecfi. (\u1ea2nh: Canva.com)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">C\u00f3 m\u1ed9t gi\u1ea5c ng\u1ee7 ngon mang l\u1ea1i s\u1ee9c kh\u1ecfe th\u1ec3 ch\u1ea5t v\u00e0 tinh th\u1ea7n t\u1ed1t. Khi m\u1ed9t ng\u01b0\u1eddi \u0111ang ng\u1ee7 li\u00ean t\u1ee5c v\u1edbi ti\u1ebfng \u1ed3n, n\u00f3 s\u1ebd g\u00f3p ph\u1ea7n l\u00e0m t\u0103ng th\u1ea7n kinh. Bi\u1ec3u hi\u1ec7n ban \u0111\u1ea7u l\u00e0 c\u01a1 th\u1ec3 c\u1ea3m th\u1ea5y kh\u00f4ng tho\u1ea3i m\u00e1i v\u00e0 m\u1ec7t m\u1ecfi. \u0110i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c ho\u1ea1t \u0111\u1ed9ng h\u00e0ng ng\u00e0y, h\u1ecdc t\u1eadp ho\u1eb7c c\u00f4ng vi\u1ec7c \u00edt n\u0103ng su\u1ea5t h\u01a1n.<\/p>\n<p dir=\"ltr\">Gi\u1ea3m kh\u1ea3 n\u0103ng t\u1eadp trung v\u00e0 gi\u1ea3i t\u1ecfa t\u00e2m tr\u00ed <\/p>\n<p dir=\"ltr\">M\u1ed9t b\u1ed9 n\u00e3o kh\u1ecfe m\u1ea1nh v\u1edbi n\u1ed3ng \u0111\u1ed9 cao c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 trong \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i. Ch\u00fang ta c\u1ea7n tr\u00e1nh \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n ho\u1eb7c t\u00ecm c\u00e1ch gi\u1ea3i quy\u1ebft ti\u1ebfng \u1ed3n \u0111\u1ec3 ch\u00fang ta c\u00f3 th\u1ec3 t\u1eadp trung nhi\u1ec1u h\u01a1n. <\/p>\n<p dir=\"ltr\">M\u1ea5t th\u00ednh gi\u00e1c, c\u00f3 th\u1ec3 b\u1ecb \u0111i\u1ebfc <\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/chong-o-nhiem-tieng-on-2.jpg\" alt=\"Ti\u1ebfng \u1ed3n qu\u00e1 l\u1edbn kh\u00f4ng t\u1ed1t \u0111\u1ec3 nghe. (\u1ea2nh: Canva.com)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Tai ng\u01b0\u1eddi ch\u1ec9 nghe th\u1ea5y \u00e2m thanh \u1edf m\u1ed9t ng\u01b0\u1ee1ng nh\u1ea5t \u0111\u1ecbnh, n\u1ebfu c\u00f3 b\u1ea5t k\u1ef3 \u00e2m thanh n\u00e0o v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng th\u00ednh gi\u00e1c c\u1ee7a tai s\u1ebd c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y \u0111au m\u00e0ng nh\u0129, m\u1ea5t th\u00ednh l\u1ef1c. C\u1ea3nh c\u00e1c tr\u01b0\u1eddng h\u1ee3p ti\u1ebfng \u1ed3n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c nghe nh\u01b0: \u00c2m thanh c\u1ee7a m\u0169i khoan, s\u1eaft H\u00e0n Qu\u1ed1c, \u00e2m thanh c\u1ee7a ng\u01b0\u1eddi n\u00f3i qu\u00e1 \u1ed3n \u00e0o &#8230;<\/p>\n<p dir=\"ltr\">T\u0103ng b\u1ec7nh l\u00fd th\u1ea7n kinh v\u00e0 huy\u1ebft \u00e1p cao cho ng\u01b0\u1eddi cao tu\u1ed5i <\/p>\n<p dir=\"ltr\">\u00d4 nhi\u1ec5m ti\u1ebfng \u1ed3n l\u00e0m cho n\u1ed3ng \u0111\u1ed9 m\u00e1u cao g\u00e2y t\u0103ng huy\u1ebft \u00e1p \u0111\u1eb7c bi\u1ec7t l\u00e0 cho ng\u01b0\u1eddi gi\u00e0. <\/p>\n<p dir=\"ltr\">Xem th\u00eam: Gi\u1ea3i th\u00edch hi\u1ec7n t\u01b0\u1ee3ng c\u1ee7a Eclipse sinh l\u00fd 7 d\u1ec5 hi\u1ec3u<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Lam_the_nao_de_ngan_ngua_o_nhiem_tieng_on\"><\/span>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n  <span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\"><em>\u0110\u1ec3 ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n, ch\u00fang ta n\u00ean t\u1eadp trung v\u00e0o ba c\u00e1ch sau<\/em><\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">T\u00e1c \u0111\u1ed9ng \u0111\u1ebfn ngu\u1ed3n \u00e2m thanh l\u00e0m gi\u1ea3m ti\u1ebfng \u1ed3n <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u00c2m thanh ph\u00e2n t\u00e1n tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n: t\u1ea1o truy\u1ec1n \u00e2m thanh theo m\u1ed9t h\u01b0\u1edbng kh\u00e1c <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ng\u0103n ch\u1eb7n \u00e2m thanh \u0111\u1ebfn tai: Ng\u0103n ch\u1eb7n \u0111\u01b0\u1eddng truy\u1ec1n \u00e2m thanh b\u1eb1ng c\u00e1c v\u1eadt li\u1ec7u c\u00e1ch \u00e2m. M\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u gi\u00fap ng\u0103n ch\u1eb7n \u00e2m thanh t\u1ea1o ra \u00e2m thanh truy\u1ec1n xu\u1ed1ng nh\u01b0: g\u1ea1ch, b\u00ea t\u00f4ng, g\u1ed7, b\u1ecdt, &#8230; m\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u ph\u1ea3n x\u1ea1 \u00e2m thanh t\u1ed1t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u00e2m thanh nh\u01b0 k\u00ednh, l\u00e1, l\u00e1, l\u00e1, <\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\"><em>C\u00e1c bi\u1ec7n ph\u00e1p c\u1ee5 th\u1ec3 ch\u1ed1ng l\u1ea1i \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n <\/em><\/p>\n<p dir=\"ltr\">N\u00f3i chung, c\u00f3 ba c\u00e1ch \u0111\u1ec3 gi\u1ea3m ti\u1ebfng \u1ed3n: t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn ngu\u1ed3n \u00e2m thanh, \u00e2m thanh r\u1ea3i r\u00e1c tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n, ng\u0103n \u00e2m thanh truy\u1ec1n \u0111\u1ebfn tai. D\u1ef1a tr\u00ean \u0111\u00f3, m\u1ecdi ng\u01b0\u1eddi s\u1eed d\u1ee5ng m\u1ed9t s\u1ed1 bi\u1ec7n ph\u00e1p c\u1ee5 th\u1ec3 nh\u01b0 sau \u0111\u1ec3 ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n. <\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/chong-o-nhiem-tieng-on-3.jpg\" alt=\"C\u1ea7n c\u00f3 c\u00e1c bi\u1ec7n ph\u00e1p \u0111\u1ec3 ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n \u0111\u1ec3 b\u1ea3o v\u1ec7 b\u1ea3n th\u00e2n v\u00e0 nh\u1eefng ng\u01b0\u1eddi kh\u00e1c. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110\u1ed1i v\u1edbi \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n do giao th\u00f4ng, n\u00f3 \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh \u0111\u1ec3 treo d\u1ea5u hi\u1ec7u c\u1ea5m h\u00e0nh \u0111\u1ed9ng c\u1ee7a s\u1eebng g\u1ea7n b\u1ec7nh vi\u1ec7n, tr\u01b0\u1eddng h\u1ecdc &#8230; (s\u1eed d\u1ee5ng t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn ngu\u1ed3n \u00e2m thanh) <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u1ede m\u1ed9t s\u1ed1 khu d\u00e2n c\u01b0 s\u1ed1ng g\u1ea7n \u0111\u01b0\u1eddng cao t\u1ed1c, vi\u1ec7c x\u00e2y d\u1ef1ng c\u00e1c b\u1ee9c t\u01b0\u1eddng b\u00ea t\u00f4ng gi\u00fap t\u00e1ch ti\u1ebfng \u1ed3n <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ngo\u00e0i ra, ph\u01b0\u01a1ng ph\u00e1p tr\u1ed3ng r\u1ea5t nhi\u1ec1u c\u00e2y c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i. B\u1edfi v\u00ec \u00e2m thanh khi ph\u00e1t ra l\u00e1 s\u1ebd \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1n theo c\u00e1c h\u01b0\u1edbng kh\u00e1c nhau trong kh\u00f4ng gian ch\u1ed1ng l\u1ea1i \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n. (S\u1eed d\u1ee5ng s\u1ef1 ph\u00e2n t\u00e1n ti\u00eau c\u1ef1c tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n) <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Nh\u1eefng ng\u00f4i nh\u00e0 \u0111\u1eb7c bi\u1ec7t c\u1ea7n c\u00e1ch \u00e2m, m\u1ecdi ng\u01b0\u1eddi \u0111\u1eb7t b\u1ecdt l\u00ean tr\u1ea7n nh\u00e0 ho\u1eb7c t\u1ea1o m\u1ed9t b\u1ee9c t\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u1ee7 b\u1eb1ng nhung \u0111\u1ec3 ng\u0103n ch\u1eb7n truy\u1ec1n \u00e2m thanh (s\u1eed d\u1ee5ng c\u00e1ch ng\u0103n \u00e2m thanh truy\u1ec1n \u0111\u1ebfn tai). <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">L\u1eafp \u0111\u1eb7t \u1ed1ng x\u1ea3 xe m\u00e1y \u0111\u1ec3 gi\u1ea3m s\u1ef1 m\u1edf r\u1ed9ng c\u1ee7a \u00e2m thanh do \u0111\u1ed9ng c\u01a1 c\u1ee7a xe m\u00e1y. Kh\u00ed th\u1ea3i c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u1ea7n gi\u1ea3m que. <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110\u1ed1i v\u1edbi m\u1ed7i c\u00e1 nh\u00e2n, khi g\u1eb7p ti\u1ebfng \u1ed3n, ch\u00fang ta n\u00ean ch\u1ee7 \u0111\u1ed9ng che tai b\u1eb1ng b\u00f4ng ho\u1eb7c l\u1ea5y TE, tai nghe. <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">N\u1ebfu c\u00f3 th\u1ec3, ch\u1ecdn ch\u1ed7 \u1edf c\u00e1ch xa c\u00e1c khu v\u1ef1c ho\u1eb7c ti\u1ebfng \u1ed3n. <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">N\u00f3i chuy\u1ec7n \u0111\u1ec3 y\u00eau c\u1ea7u ng\u01b0\u1eddi kh\u00e1c kh\u00f4ng th\u1ef1c hi\u1ec7n \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n. <\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Giai_quyet_cac_bai_tap_gay_o_nhiem_chong_lai\"><\/span>Gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp g\u00e2y \u00f4 nhi\u1ec5m ch\u1ed1ng l\u1ea1i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">C\u00e2u 1: \u00c2m thanh n\u00e0o sau \u0111\u00e2y g\u00e2y ra \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n? <\/p>\n<p dir=\"ltr\">A. Thunder <\/p>\n<p dir=\"ltr\">B. \u00c2m thanh t\u00e0n nh\u1eabn c\u1ee7a t\u00e0u \u0111ang ch\u1ea1y <\/p>\n<p dir=\"ltr\">C. \u00c2m thanh c\u1ee7a s\u00f3ng bi\u1ec3n \u1ea7m \u1ea7m <\/p>\n<p dir=\"ltr\">D. \u00c2m thanh c\u1ee7a m\u00e1y m\u00f3c ho\u1ea1t \u0111\u1ed9ng l\u1edbn, k\u00e9o d\u00e0i <\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: d<\/p>\n<p dir=\"ltr\">C\u00e2u 2: V\u1eadt li\u1ec7u n\u00e0o sau \u0111\u00e2y th\u01b0\u1eddng kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m \u0111\u1ed1i t\u01b0\u1ee3ng c\u00e1ch \u00e2m gi\u1eefa c\u00e1c ph\u00f2ng<\/p>\n<p dir=\"ltr\">A. T\u01b0\u1eddng b\u00ea t\u00f4ng<\/p>\n<p dir=\"ltr\">B. C\u1eeda k\u00ednh hai -layer <\/p>\n<p dir=\"ltr\">C. B\u1ee9c r\u00e8m t\u01b0\u1eddng <\/p>\n<p dir=\"ltr\">D. C\u1eeda g\u1ed7 <\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: d<\/p>\n<p dir=\"ltr\">C\u00e2u 3: T\u1ea1i sao ch\u00fang ta c\u00f3 th\u1ec3 nghe th\u1ea5y ti\u1ebfng c\u01b0\u1eddi tr\u00ean t\u01b0\u1eddng khi \u1ea5n tai v\u00e0 khi ch\u00fang ta kh\u00f4ng \u00e1p tai v\u00e0o t\u01b0\u1eddng, ch\u00fang ta kh\u00f4ng th\u1ec3 nghe th\u1ea5y n\u00f3? <\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: Khi tai \u00e1p d\u1ee5ng cho b\u1ee9c t\u01b0\u1eddng, ch\u00fang t\u00f4i nghe th\u1ea5y ti\u1ebfng c\u01b0\u1eddi c\u1ee7a ph\u00f2ng b\u00ean c\u1ea1nh v\u00ec sau \u0111\u00f3 \u00e2m thanh truy\u1ec1n tr\u1ef1c ti\u1ebfp qua v\u1eadt r\u1eafn l\u00e0 b\u1ee9c t\u01b0\u1eddng \u0111\u1ebfn tai ch\u00fang t\u00f4i. Khi tai mi\u1ec5n ph\u00ed trong kh\u00f4ng kh\u00ed, b\u1ee9c t\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t v\u1eadt th\u1ec3 c\u00e1ch \u00e2m n\u00ean ch\u00fang t\u00f4i kh\u00f3 nghe ho\u1eb7c kh\u00f4ng th\u1ec3 nghe th\u1ea5y \u00e2m thanh \u1edf ph\u00f2ng b\u00ean c\u1ea1nh.<\/p>\n<p dir=\"ltr\">C\u00e2u 4: \u0110\u1eb7t t\u00ean cho m\u1ed9t s\u1ed1 c\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n l\u00e0m gi\u1ea3m \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n trong cu\u1ed9c s\u1ed1ng.<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: M\u1ed9t s\u1ed1 c\u00f4ng vi\u1ec7c nh\u01b0: tr\u1ed3ng c\u00e2y, s\u1eed d\u1ee5ng r\u00e8m c\u1eeda treo c\u1eeda nhung, tr\u00e1nh s\u1eebng khi l\u00e1i xe, tr\u00e1nh \u00e2m nh\u1ea1c l\u1edbn \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u00e0ng x\u00f3m, &#8230;<\/p>\n<p dir=\"ltr\">C\u00e2u 5: \u0110i\u1ec1u n\u00e0o sau \u0111\u00e2y l\u00e0 sai?<\/p>\n<p dir=\"ltr\">A. Ti\u1ebfng \u1ed3n l\u1edbn, k\u00e9o d\u00e0i \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe v\u00e0 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng c\u1ee7a con ng\u01b0\u1eddi \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n.<\/p>\n<p dir=\"ltr\">B. \u0110\u1ec3 ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n, m\u1ecdi ng\u01b0\u1eddi ph\u1ea3i gi\u1ea3m s\u1ef1 m\u1edf r\u1ed9ng c\u1ee7a \u00e2m thanh l\u00ean tai ng\u01b0\u1eddi nghe.<\/p>\n<p dir=\"ltr\">C. \u0110\u1ec3 ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n, c\u00e1c v\u1eadt li\u1ec7u c\u00e1ch \u00e2m kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ng\u0103n ng\u1eeba ti\u1ebfng \u1ed3n \u1edf tai.<\/p>\n<p dir=\"ltr\">D. \u00c2m thanh v\u1edbi t\u1ea7n s\u1ed1 l\u1edbn th\u01b0\u1eddng g\u00e2y nhi\u1ec5u g\u00e2y \u00f4 nhi\u1ec5m.<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: d<\/p>\n<p dir=\"ltr\">C\u00e2u 6: Gi\u1ea3 s\u1eed m\u1ed9t b\u1ec7nh vi\u1ec7n n\u1eb1m b\u00ean c\u1ea1nh \u0111\u01b0\u1eddng cao t\u1ed1c c\u00f3 nhi\u1ec1u ph\u01b0\u01a1ng ti\u1ec7n \u0111i qua. Bi\u1ec7n ph\u00e1p kh\u00f4ng th\u1ec3 gi\u00fap ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n cho b\u1ec7nh vi\u1ec7n n\u00e0y l\u00e0:<\/p>\n<p dir=\"ltr\">A. D\u1ea5u hi\u1ec7u treo c\u1ed5 c\u00f2i g\u1ea7n b\u1ec7nh vi\u1ec7n.<\/p>\n<p dir=\"ltr\">B. X\u00e2y d\u1ef1ng c\u00e1c b\u1ee9c t\u01b0\u1eddng xung quanh b\u1ec7nh vi\u1ec7n, \u0111\u00f3ng c\u1eeda \u0111\u1ec3 ng\u0103n ch\u1eb7n truy\u1ec1n \u00e2m thanh.<\/p>\n<p dir=\"ltr\">C. C\u00e2y nhi\u1ec1u c\u00e2y xung quanh b\u1ec7nh vi\u1ec7n \u0111\u1ec3 c\u00f3 h\u01b0\u1edbng ti\u00eau c\u1ef1c theo m\u1ed9t h\u01b0\u1edbng kh\u00e1c.<\/p>\n<p dir=\"ltr\">D. S\u1eed d\u1ee5ng nhi\u1ec1u ph\u1ea7n c\u1ee9ng v\u1edbi b\u1ec1 m\u1eb7t m\u1ecbn \u0111\u1ec3 h\u1ea5p th\u1ee5 \u00e2m thanh.<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: d<\/p>\n<p dir=\"ltr\">C\u00e2u 7: Khi m\u1ecdi ng\u01b0\u1eddi l\u00e0m vi\u1ec7c trong b\u1ed1i c\u1ea3nh \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n, n\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1edfi:<\/p>\n<p dir=\"ltr\">A. Tai kh\u1edbp \u0111\u1ec3 gi\u1ea3m ti\u1ebfng \u1ed3n <\/p>\n<p dir=\"ltr\">B. Thay th\u1ebf \u0111\u1ed9ng c\u01a1 c\u1ee7a m\u00e1y n\u1ed5<\/p>\n<p dir=\"ltr\">C. Tr\u00e1nh xa v\u1ecb tr\u00ed g\u00e2y ra ti\u1ebfng \u1ed3n <\/p>\n<p dir=\"ltr\">D. \u0110\u00ednh k\u00e8m h\u1ec7 th\u1ed1ng gi\u1ea3m \u00e2m thanh v\u00e0o \u1ed1ng x\u1ea3<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: a <\/p>\n<p dir=\"ltr\">C\u00e2u 8: Nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0o sau \u0111\u00e2y c\u00f3 \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n? <\/p>\n<p dir=\"ltr\">A. ti\u1ebfng h\u00e9t r\u1ea5t l\u1edbn g\u1ea7n tai <\/p>\n<p dir=\"ltr\">B. L\u00e0m vi\u1ec7c b\u00ean c\u1ea1nh m\u00e1y xay g\u1ea1o, g\u1ea1o, ng\u00f4 &#8230;<\/p>\n<p dir=\"ltr\">C. House b\u00ean c\u1ea1nh ch\u1ee3 <\/p>\n<p dir=\"ltr\">D. B\u1ec7nh vi\u1ec7n v\u00e0 ph\u00f2ng kh\u00e1m b\u00ean c\u1ea1nh th\u1ecb tr\u01b0\u1eddng <\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: C\u00e1c tr\u01b0\u1eddng h\u1ee3p \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n l\u00e0 B, C, D<\/p>\n<p dir=\"ltr\">K\u1ebft lu\u1eadn<\/p>\n<p dir=\"ltr\">V\u00ec v\u1eady, ch\u00fang t\u00f4i \u0111\u00e3 hi\u1ec3u \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n l\u00e0 g\u00ec, n\u00f3 \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn s\u1ee9c kh\u1ecfe th\u1ec3 ch\u1ea5t v\u00e0 con ng\u01b0\u1eddi. Nh\u1eadn ra hai \u0111i\u1ec1u n\u00e0y, b\u1ea1n c\u0169ng c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh \u0111\u1ed9ng th\u00edch h\u1ee3p \u0111\u1ec3 ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n, kh\u00f4ng \u0111\u1ec3 n\u00f3 \u1ea3nh h\u01b0\u1edfng ti\u00eau c\u1ef1c \u0111\u1ebfn cu\u1ed9c s\u1ed1ng c\u1ee7a b\u1ea1n v\u00e0 nh\u1eefng ng\u01b0\u1eddi xung quanh b\u1ea1n. C\u1ea3m \u01a1n b\u1ea1n \u0111\u00e3 \u0111\u1ecdc t\u1ea5t c\u1ea3 c\u00e1c b\u00e0i vi\u1ebft, xin vui l\u00f2ng l\u00e0m theo ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c nhi\u1ec1u b\u00e0i h\u1ecdc t\u1ed1t h\u01a1n v\u1ec1 to\u00e1n h\u1ecdc, v\u1eadt l\u00fd, h\u00f3a h\u1ecdc! <\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u1ecdi ng\u01b0\u1eddi c\u00f3 kh\u1ea3 n\u0103ng nh\u1eadn ra \u00e2m thanh xung quanh cu\u1ed9c s\u1ed1ng l\u00e0 tuy\u1ec7t v\u1eddi. Nh\u1edd \u00e2m thanh, ch\u00fang t\u00f4i nghe th\u1ea5y \u00e2m nh\u1ea1c, chim h\u00e1t, n\u00f3i chuy\u1ec7n &#8230; nh\u01b0ng trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p b\u1ea1n nghe th\u1ea5y \u00e2m thanh r\u1ea5t \u1ed3n \u00e0o v\u00e0 k\u00e9o d\u00e0i? Ch\u1eafc ch\u1eafn t\u1ea5t c\u1ea3 ch\u00fang ta \u0111\u1ec1u c\u1ea3m&#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-20860","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/20860","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=20860"}],"version-history":[{"count":1,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/20860\/revisions"}],"predecessor-version":[{"id":24757,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/20860\/revisions\/24757"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=20860"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=20860"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=20860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}