{"id":462,"date":"2023-06-16T23:34:32","date_gmt":"2023-06-16T23:34:32","guid":{"rendered":"https:\/\/physigeek.com\/pt\/onda-mecanica\/"},"modified":"2023-06-16T23:34:32","modified_gmt":"2023-06-16T23:34:32","slug":"onda-mecanica","status":"publish","type":"post","link":"https:\/\/physigeek.com\/pt\/onda-mecanica\/","title":{"rendered":"Onda mec\u00e2nica"},"content":{"rendered":"<p>Este artigo explica o que s\u00e3o ondas mec\u00e2nicas na f\u00edsica e quais s\u00e3o suas caracter\u00edsticas. Assim, voc\u00ea encontrar\u00e1 a defini\u00e7\u00e3o de onda mec\u00e2nica, exemplos de ondas mec\u00e2nicas, qual \u00e9 a equa\u00e7\u00e3o de uma onda mec\u00e2nica e, tamb\u00e9m, quais s\u00e3o os diferentes tipos de ondas mec\u00e2nicas. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue-es-una-onda-mecanica\"><\/span> O que \u00e9 uma onda mec\u00e2nica?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> Uma <strong>onda mec\u00e2nica<\/strong> \u00e9 um tipo de onda que se propaga em um meio material, ou seja, ondas mec\u00e2nicas s\u00e3o as ondas que se propagam em um meio material.<\/p>\n<p> As ondas mec\u00e2nicas causam, portanto, uma perturba\u00e7\u00e3o tempor\u00e1ria do meio em que se propagam, sem que este seja transportado.<\/p>\n<p> Por exemplo, uma onda sonora \u00e9 uma onda mec\u00e2nica. As ondas sonoras viajam pelo ar. Portanto, quando oscilam atrav\u00e9s de um meio material, trata-se de uma onda mec\u00e2nica.<\/p>\n<p> Uma das principais caracter\u00edsticas das ondas mec\u00e2nicas \u00e9 que elas transportam energia. Na verdade, a energia transportada por uma onda mec\u00e2nica pode ser catastr\u00f3fica, como \u00e9 o caso das ondas s\u00edsmicas.<\/p>\n<p> Na f\u00edsica, as ondas mec\u00e2nicas tamb\u00e9m s\u00e3o chamadas <strong>de ondas materiais<\/strong> porque precisam de um meio material para se propagarem. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejemplos-de-ondas-mecanicas\"><\/span> Exemplos de ondas mec\u00e2nicas<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> Depois de ver a defini\u00e7\u00e3o de onda mec\u00e2nica, veremos agora v\u00e1rios exemplos deste tipo de onda para compreender totalmente o conceito.<\/p>\n<p> <u style=\"text-decoration-color:#4fd12f\"><strong>Exemplos de ondas mec\u00e2nicas:<\/strong><\/u><\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:15px\"> <span style=\"color:#101010;font-weight: normal;\">As ondas sonoras s\u00e3o ondas mec\u00e2nicas.<\/span><\/li>\n<li style=\"margin-bottom:15px\"> <span style=\"color:#101010;font-weight: normal;\">Uma onda s\u00edsmica tamb\u00e9m \u00e9 uma onda mec\u00e2nica.<\/span><\/li>\n<li style=\"margin-bottom:15px\"> <span style=\"color:#101010;font-weight: normal;\">As ondas superficiais geradas na superf\u00edcie da \u00e1gua pelo impacto de um objeto s\u00e3o mec\u00e2nicas.<\/span><\/li>\n<li style=\"margin-bottom:15px\"> <span style=\"color:#101010;font-weight: normal;\">As ondas que se propagam atrav\u00e9s de uma mola s\u00e3o ondas mec\u00e2nicas.<\/span> <\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Caracteristicas-de-una-onda-mecanica\"><\/span> Caracter\u00edsticas de uma onda mec\u00e2nica<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> As ondas mec\u00e2nicas possuem as seguintes caracter\u00edsticas ou partes:<\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:16px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Alongamento (y)<\/strong> : \u00e9 a dist\u00e2ncia entre a posi\u00e7\u00e3o da onda e sua posi\u00e7\u00e3o de equil\u00edbrio.<\/span><\/li>\n<li style=\"margin-bottom:16px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Amplitude (A)<\/strong> : \u00e9 a dist\u00e2ncia entre a extens\u00e3o m\u00e1xima e sua posi\u00e7\u00e3o de equil\u00edbrio.<\/span><\/li>\n<li style=\"margin-bottom:16px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Crista<\/strong> : cada um dos pontos mais altos da onda.<\/span><\/li>\n<li style=\"margin-bottom:16px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Vale<\/strong> : cada um dos pontos mais baixos da onda.<\/span><\/li>\n<li style=\"margin-bottom:16px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Ciclo ou oscila\u00e7\u00e3o<\/strong> : \u00e9 o caminho da onda de um ponto ao pr\u00f3ximo ponto equivalente.<\/span><\/li>\n<li style=\"margin-bottom:16px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Comprimento de onda (\u03bb)<\/strong> : \u00e9 a dist\u00e2ncia que separa dois pontos equivalentes consecutivos da onda.<\/span><\/li>\n<li style=\"margin-bottom:16px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Per\u00edodo (T)<\/strong> : \u00e9 o tempo necess\u00e1rio para completar uma oscila\u00e7\u00e3o completa.<\/span><\/li>\n<li style=\"margin-bottom:16px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Frequ\u00eancia (f)<\/strong> : \u00e9 o n\u00famero de oscila\u00e7\u00f5es ou vibra\u00e7\u00f5es que a onda faz por unidade de tempo.<\/span><\/li>\n<p style=\"text-align:center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-531bea341cf9b96ec2c355cc9e57d511_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f=\\cfrac{1}{T}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"49\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<li style=\"margin-bottom:16px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Frequ\u00eancia angular (ou pulsa\u00e7\u00e3o) (\u03c9)<\/strong> : \u00e9 a velocidade com que a onda realiza oscila\u00e7\u00f5es.<\/span><\/li>\n<p style=\"text-align:center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-df8b803de06998e6a4ef5082a65705b7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\omega=\\cfrac{2\\cdot \\pi}{T}=2\\cdot \\pi \\cdot f\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"149\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<li style=\"margin-bottom:16px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Velocidade de propaga\u00e7\u00e3o (v)<\/strong> : \u00e9 a velocidade com que a onda se propaga.<\/span> <\/li>\n<p style=\"text-align:center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-1eed1cba17cbc307677c872b03943c7f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"v=\\cfrac{\\lambda}{T}=\\lambda\\cdot f\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"104\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<\/ul>\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/caracteristiques-des-ondes-transversales.png\" alt=\"caracter\u00edsticas de uma onda mec\u00e2nica, partes de uma onda mec\u00e2nica\" class=\"wp-image-9217\" width=\"717\" height=\"369\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/caracteristiques-des-ondes-transversales-300x155.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/caracteristiques-des-ondes-transversales-1024x528.png 1024w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/caracteristiques-des-ondes-transversales-768x396.png 768w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/caracteristiques-des-ondes-transversales.png 1368w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Formula-de-una-onda-mecanica\"><\/span> F\u00f3rmula de uma onda mec\u00e2nica<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> A fun\u00e7\u00e3o matem\u00e1tica que permite descrever o movimento de uma onda mec\u00e2nica \u00e9 sempre a seguinte:<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-7bfd7d5b8ae3c91dc42ca32a954a2d0e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y=f(x\\pm v\\cdot t)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"116\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\"> Ouro: <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-38461fc041e953482219abf5d4cce1cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: -4px;\"><\/p>\n<p> \u00e9 o alongamento da onda. <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-7e5fbfa0bbbd9f3051cd156a0f1b5e31_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a dist\u00e2ncia do ponto estudado at\u00e9 a origem da onda. <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-796872219106704832bd95ce08640b7b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"v\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a velocidade de propaga\u00e7\u00e3o da onda. <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-fd9cb27edab3f0a8a249bc80cc9c6ee2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"t\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"6\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 o momento do tempo.<\/span><\/li>\n<\/ul>\n<p> O sinal antes da velocidade de propaga\u00e7\u00e3o indica se a onda mec\u00e2nica est\u00e1 se movendo para a direita (sinal negativo) ou para a esquerda (sinal positivo).<\/p>\n<p> <strong>Se a onda mec\u00e2nica for uma <a href=\"https:\/\/physigeek.com\/pt\/onda-harmonica\/\">onda harm\u00f4nica<\/a> , a equa\u00e7\u00e3o da onda mec\u00e2nica \u00e9 y(x,t) = A\u00b7sin(k\u00b7x \u00b1 \u03c9\u00b7t + \u03c6 <sub>0<\/sub> ).<\/strong> Esta f\u00f3rmula \u00e9 usada para calcular o alongamento de um ponto da onda mec\u00e2nica em uma posi\u00e7\u00e3o espec\u00edfica e em um momento espec\u00edfico.<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-5bf20982fc10ac516d8272178ef0935c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y(x,t)=A\\cdot \\text{sin}(k\\cdot x\\pm w\\cdot t+\\phi_0)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"259\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\"> Ouro: <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-38461fc041e953482219abf5d4cce1cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: -4px;\"><\/p>\n<p> \u00e9 o alongamento da onda. <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-816b613a4f79d4bf9cb51396a9654120_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"A\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"13\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a amplitude da onda mec\u00e2nica. <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-7e5fbfa0bbbd9f3051cd156a0f1b5e31_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a dist\u00e2ncia do ponto estudado at\u00e9 a origem da onda. <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-d42bc2203d6f76ad01b27ac9acc0bee1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"k\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 o n\u00famero de onda, que \u00e9 calculado pela seguinte express\u00e3o: <\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-20c1803a9dcde209173b7c67b98b2251_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"k=\\cfrac{2\\cdot \\pi}{\\lambda}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"68\" style=\"vertical-align: -12px;\"><\/p>\n<p><\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-fbffdce91996e0a17795d82e8e6996d9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\omega\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"11\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a frequ\u00eancia angular ou de pulsa\u00e7\u00e3o. <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-fd9cb27edab3f0a8a249bc80cc9c6ee2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"t\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"6\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 o momento do tempo. <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-c8618f3820889d0002a7eefeeb2aaf41_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\phi_0\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"18\" style=\"vertical-align: -4px;\"><\/p>\n<p> \u00e9 a fase inicial da onda. <\/span><\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tipos-de-ondas-mecanicas\"><\/span>Tipos de ondas mec\u00e2nicas<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> Os tipos de ondas mec\u00e2nicas s\u00e3o:<\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:18px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Onda longitudinal<\/strong> : tipo de onda mec\u00e2nica que oscila na mesma dire\u00e7\u00e3o de propaga\u00e7\u00e3o da onda.<\/span><\/li>\n<li style=\"margin-bottom:5px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Onda transversal<\/strong> : tipo de onda mec\u00e2nica que oscila perpendicularmente \u00e0 dire\u00e7\u00e3o de propaga\u00e7\u00e3o da onda.<\/span><\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Onda-longitudinal\"><\/span> Onda longitudinal<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p> Uma <strong>onda longitudinal<\/strong> \u00e9 uma onda mec\u00e2nica na qual o movimento oscilante das part\u00edculas no meio ocorre na mesma dire\u00e7\u00e3o de propaga\u00e7\u00e3o da onda. Ou seja, as pontas de uma onda longitudinal oscilam longitudinalmente.<\/p>\n<p> Por exemplo, as ondas sonoras s\u00e3o ondas longitudinais, pois neste tipo de ondas o movimento das suas pontas \u00e9 paralelo \u00e0 propaga\u00e7\u00e3o da onda. <\/p>\n<div style=\"background-color:#FFFDE7; padding-top: 10px; padding-bottom: 10px; padding-right: 10px; padding-left: 20px; border: 2.5px dashed #FFB74D; border-radius:20px;\"> <span style=\"color:#ff951b\">\u27a4<\/span> <strong>Veja:<\/strong> <a href=\"https:\/\/physigeek.com\/pt\/onda-longitudinal\/\">Caracter\u00edsticas de uma onda longitudinal<\/a><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Onda-transversal\"><\/span> onda transversal<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p> Uma <strong>onda transversal<\/strong> \u00e9 uma onda mec\u00e2nica cujas oscila\u00e7\u00f5es s\u00e3o perpendiculares \u00e0 dire\u00e7\u00e3o de propaga\u00e7\u00e3o da onda. Ou seja, os pontos de uma onda transversal movem-se transversalmente \u00e0 dire\u00e7\u00e3o de deslocamento da onda.<\/p>\n<p> Por exemplo, uma corda presa em uma extremidade que oscila \u00e9 uma onda transversal. Se fixarmos a ponta de uma corda e movermos sua outra ponta verticalmente, s\u00e3o geradas vibra\u00e7\u00f5es perpendiculares \u00e0 dire\u00e7\u00e3o de deslocamento da onda na corda, trata-se, portanto, de uma onda transversal. <\/p>\n<div style=\"background-color:#FFFDE7; padding-top: 10px; padding-bottom: 10px; padding-right: 10px; padding-left: 20px; border: 2.5px dashed #FFB74D; border-radius:20px;\"> <span style=\"color:#ff951b\">\u27a4<\/span> <strong>Veja:<\/strong> <a href=\"https:\/\/physigeek.com\/pt\/onda-transversal\/\">Caracter\u00edsticas de uma onda transversal<\/a> <\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Velocidad-de-propagacion-de-una-onda-mecanica\"><\/span> Velocidade de propaga\u00e7\u00e3o de uma onda mec\u00e2nica<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> A velocidade de propaga\u00e7\u00e3o \u00e9 a velocidade na qual a onda mec\u00e2nica se propaga no meio. Em geral, a velocidade de uma onda mec\u00e2nica \u00e9 calculada usando uma f\u00f3rmula que tem a seguinte forma:<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-772bb78ab2d4234763abfa66d1ab1819_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle v=\\sqrt{\\frac{\\text{propri\u00e9t\u00e9 \u00e9lastique}}{\\text{propri\u00e9t\u00e9 inertielle}}}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"199\" style=\"vertical-align: -21px;\"><\/p>\n<\/p>\n<p> Abaixo voc\u00ea pode ver a f\u00f3rmula usada para calcular a velocidade de propaga\u00e7\u00e3o de uma onda mec\u00e2nica em alguns casos especiais da f\u00edsica. <\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Velocidad-de-propagacion-de-una-onda-transversal-en-una-cuerda\"><\/span> Velocidade de propaga\u00e7\u00e3o de uma onda transversal em uma corda <span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-abbf6159b560abee3776c4d53e270f18_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle v=\\sqrt{\\frac{T}{\\mu}}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"68\" style=\"vertical-align: -21px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\"> Ouro: <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-7e093fd43ad2c244140c11afe4d4bdff_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"T\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"13\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a tens\u00e3o da corda. <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-05d9eae892416bd34247a25207f8b718_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mu\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"11\" style=\"vertical-align: -4px;\"><\/p>\n<p> \u00e9 a densidade de massa linear da corda. <\/span><\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Velocidad-de-propagacion-de-una-onda-longitudinal-en-un-solido\"><\/span> Velocidade de propaga\u00e7\u00e3o de uma onda longitudinal em um s\u00f3lido <span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-a5cd3a29428cb9e37abb8265a9eb6884_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle v=\\sqrt{\\frac{E}{\\rho}}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"69\" style=\"vertical-align: -21px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\"> Ouro: <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-638a7387bd72763290cc777a9b509c38_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"E\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"14\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 o m\u00f3dulo de Young do s\u00f3lido. <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-e8e197a6f1572ae9b5a16039ea626388_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\rho\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: -4px;\"><\/p>\n<p> \u00e9 a densidade do s\u00f3lido. <\/span><\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Velocidad-de-propagacion-de-una-onda-longitudinal-en-un-gas-sonido\"><\/span> Velocidade de propaga\u00e7\u00e3o de uma onda longitudinal em um g\u00e1s (som) <span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-d3d59a63c39209d1e79a4708a7cb4018_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle v=\\sqrt{\\frac{\\gamma \\cdot R\\cdot T}{M}}\" title=\"Rendered by QuickLaTeX.com\" height=\"43\" width=\"118\" style=\"vertical-align: -14px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\"> Ouro: <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-7b9abe136d2f0d53300727f373cfed43_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\gamma\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"10\" style=\"vertical-align: -4px;\"><\/p>\n<p> \u00e9 o coeficiente adiab\u00e1tico do g\u00e1s (no caso do ar<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-774f6539a240d6d586e71d7f254f9a20_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\gamma=1,4\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"60\" style=\"vertical-align: -4px;\"><\/p>\n<p> ). <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-7e093fd43ad2c244140c11afe4d4bdff_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"T\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"13\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a temperatura do g\u00e1s expressa em Kelvins. <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-d6abdd487c56e5efbb2c9522ed4b9360_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"R\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"14\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 o g\u00e1s constante ideal,<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-4c0f7fbfe9e1ba6dcf327e7c11342c16_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle R=8.31 \\ \\frac{J}{mol\\cdot K}\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"136\" style=\"vertical-align: -12px;\"><\/p>\n<p> . <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-27d6692c77760dc1111628e74a6d272f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"M\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"19\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a massa molecular do g\u00e1s.<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Este artigo explica o que s\u00e3o ondas mec\u00e2nicas na f\u00edsica e quais s\u00e3o suas caracter\u00edsticas. Assim, voc\u00ea encontrar\u00e1 a defini\u00e7\u00e3o de onda mec\u00e2nica, exemplos de ondas mec\u00e2nicas, qual \u00e9 a equa\u00e7\u00e3o de uma onda mec\u00e2nica e, tamb\u00e9m, quais s\u00e3o os diferentes tipos de ondas mec\u00e2nicas. O que \u00e9 uma onda mec\u00e2nica? Uma onda mec\u00e2nica \u00e9 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/physigeek.com\/pt\/onda-mecanica\/\"> <span class=\"screen-reader-text\">Onda mec\u00e2nica<\/span> Leia mais &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-462","post","type-post","status-publish","format-standard","hentry","category-cinematografico"],"yoast_head":"<!-- This site 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