{"id":237,"date":"2023-06-23T14:10:07","date_gmt":"2023-06-23T14:10:07","guid":{"rendered":"https:\/\/physigeek.com\/pt\/aceleracao-devido-a-gravidade-ou-aceleracao-gravitacional\/"},"modified":"2023-06-23T14:10:07","modified_gmt":"2023-06-23T14:10:07","slug":"aceleracao-devido-a-gravidade-ou-aceleracao-gravitacional","status":"publish","type":"post","link":"https:\/\/physigeek.com\/pt\/aceleracao-devido-a-gravidade-ou-aceleracao-gravitacional\/","title":{"rendered":"Acelera\u00e7\u00e3o devido \u00e0 gravidade (ou acelera\u00e7\u00e3o gravitacional)"},"content":{"rendered":"<p>Este artigo explica o que \u00e9 a acelera\u00e7\u00e3o da gravidade (ou acelera\u00e7\u00e3o gravitacional). Assim, voc\u00ea encontrar\u00e1 a defini\u00e7\u00e3o de acelera\u00e7\u00e3o da gravidade, como ela \u00e9 calculada e qual \u00e9 o valor da acelera\u00e7\u00e3o da gravidade nos diferentes planetas. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue-es-la-aceleracion-de-la-gravedad\"><\/span> O que \u00e9 acelera\u00e7\u00e3o da gravidade?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> A <strong>acelera\u00e7\u00e3o da gravidade<\/strong> , tamb\u00e9m chamada de <strong>acelera\u00e7\u00e3o gravitacional<\/strong> , \u00e9 a acelera\u00e7\u00e3o com que um corpo que est\u00e1 no campo gravitacional de outro corpo \u00e9 atra\u00eddo.<\/p>\n<p> Em outras palavras, a acelera\u00e7\u00e3o da gravidade \u00e9 a for\u00e7a gravitacional que atua sobre um corpo atra\u00eddo por outro corpo.<\/p>\n<p> O s\u00edmbolo da acelera\u00e7\u00e3o da gravidade \u00e9 o g min\u00fasculo.<\/p>\n<p> As unidades de acelera\u00e7\u00e3o da gravidade no Sistema Internacional s\u00e3o N\/kg, embora tamb\u00e9m possa ser expressa em m\/s <sup>2<\/sup> por se tratar de uma acelera\u00e7\u00e3o.<\/p>\n<p> \u00c9 preciso ter em mente que qualquer corpo com massa, por menor que seja, possui um campo gravitacional, portanto todos os corpos causam acelera\u00e7\u00e3o gravitacional. Contudo, esta acelera\u00e7\u00e3o s\u00f3 \u00e9 percept\u00edvel se a massa do corpo for extremamente grande, como a massa de um planeta. \u00c9 por isso que as acelera\u00e7\u00f5es gravitacionais causadas por objetos comuns ou mesmo pelos pr\u00f3prios humanos s\u00e3o negligenciadas, j\u00e1 que seu valor \u00e9 praticamente zero. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Formula-de-la-aceleracion-de-la-gravedad\"><\/span> F\u00f3rmula para a acelera\u00e7\u00e3o da gravidade<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> A acelera\u00e7\u00e3o da gravidade (ou acelera\u00e7\u00e3o gravitacional) \u00e9 igual \u00e0 constante gravitacional universal multiplicada pela massa do corpo que cria o campo gravitacional dividida pelo quadrado da dist\u00e2ncia entre o ponto em quest\u00e3o e o centro do corpo.<\/p>\n<p> A <strong>f\u00f3rmula para calcular a acelera\u00e7\u00e3o da gravidade<\/strong> \u00e9, portanto, 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-278bac151b8b02af9dbca5a377d8823e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"g=\\cfrac{G\\cdot M}{r^2}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"81\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\"> Ouro: <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:8px\"><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-e88010d25c51c0c42c505ee1004ed182_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"g\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: -4px;\"><\/p>\n<p> \u00e9 a acelera\u00e7\u00e3o da gravidade. <\/span><\/li>\n<li style=\"margin-bottom:8px\"><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-1e40206e25474f738eeb7ca968031abf_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"G\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"14\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a constante gravitacional universal, cujo valor \u00e9<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-9d75ef18969b22581b72ad88a7def60c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"6,674\\cdot 10^{-11} \\ N\\cdot m^2\/kg^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"192\" style=\"vertical-align: -5px;\"><\/p>\n<p> . <\/span><\/li>\n<li style=\"margin-bottom:8px\"><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 do corpo que cria o campo gravitacional, expressa em quilogramas.<\/span><\/li>\n<li><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-01bcf7e9e043561da78fecf715c8a46e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"r\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"8\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a dist\u00e2ncia entre o corpo que cria o campo gravitacional e o corpo atra\u00eddo, expressa em metros. <\/span><\/li>\n<\/ul>\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/champ-gravitationnel.png\" alt=\"campo gravitacional\" class=\"wp-image-3922\" width=\"244\" height=\"206\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/champ-gravitationnel-300x253.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/champ-gravitationnel.png 520w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:12px\"> <span style=\"color:#101010;font-weight: normal;\">Observe que a acelera\u00e7\u00e3o da gravidade n\u00e3o depende da massa do objeto atra\u00eddo, mas da massa que cria o campo e da dist\u00e2ncia entre os dois corpos.<\/span><\/li>\n<li style=\"margin-bottom:12px\"> <span style=\"color:#101010;font-weight: normal;\">Al\u00e9m disso, a dire\u00e7\u00e3o da acelera\u00e7\u00e3o da gravidade \u00e9 a linha imagin\u00e1ria que passa entre a massa que cria o campo gravitacional e a massa atra\u00edda pelo campo.<\/span><\/li>\n<li> <span style=\"color:#101010;font-weight: normal;\">Finalmente, a dire\u00e7\u00e3o do vetor acelera\u00e7\u00e3o da gravidade \u00e9 em dire\u00e7\u00e3o ao centro de massa que cria o campo.<\/span> <\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Valor-de-la-aceleracion-de-la-gravedad\"><\/span> Acelera\u00e7\u00e3o do valor da gravidade<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> O <strong>valor da acelera\u00e7\u00e3o da gravidade<\/strong> na Terra \u00e9 9,80665 m\/s <sup>2<\/sup> . No entanto, o valor da acelera\u00e7\u00e3o da gravidade varia ligeiramente dependendo da altitude e latitude, entre outros fatores. \u00c9 por isso que o valor de 9,80665 m\/s <sup>2<\/sup> \u00e9 considerado o valor padr\u00e3o da acelera\u00e7\u00e3o da gravidade na Terra.<\/p>\n<p> Al\u00e9m disso, o valor da acelera\u00e7\u00e3o da gravidade no espa\u00e7o muda entre os planetas, uma vez que cada estrela tem massa e raio diferentes. Assim, os valores da acelera\u00e7\u00e3o da gravidade dos diferentes planetas do sistema solar s\u00e3o os seguintes:<\/p>\n<figure class=\"wp-block-table is-style-stripes\">\n<table>\n<thead>\n<tr>\n<th> Planeta<\/th>\n<th class=\"has-text-align-center\" data-align=\"center\"> Peso (kg)<\/th>\n<th class=\"has-text-align-center\" data-align=\"center\"> Raio (m)<\/th>\n<th class=\"has-text-align-center\" data-align=\"center\"> Acelera\u00e7\u00e3o da gravidade (m\/s <sup>2<\/sup> )<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td> Merc\u00fario<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 3,3 \u00b7 10 <sup>23<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 2,4 \u00b7 10 <sup>6<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 3,70<\/td>\n<\/tr>\n<tr>\n<td> V\u00eanus<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 4,9 \u00b7 10 <sup>24<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 6,1 \u00b7 10 <sup>6<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 8,85<\/td>\n<\/tr>\n<tr>\n<td> Pousar<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 6,0 \u00b7 10 <sup>24<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 6,4 \u00b7 10 <sup>6<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 9,81<\/td>\n<\/tr>\n<tr>\n<td> Marchar<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 6,4 \u00b7 10 <sup>23<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 3,4 \u00b7 10 <sup>6<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 3,72<\/td>\n<\/tr>\n<tr>\n<td> J\u00fapiter<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 1,9 \u00b7 10 <sup>27<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 7,1 \u00b7 10 <sup>7<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 26:39<\/td>\n<\/tr>\n<tr>\n<td> Saturno<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 5,7 \u00b7 10 <sup>26<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 6,0 \u00b7 10 <sup>7<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 11h67<\/td>\n<\/tr>\n<tr>\n<td> Urano<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 8,7 \u00b7 10 <sup>25<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 2,6 10 <sup>7<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 11h43<\/td>\n<\/tr>\n<tr>\n<td> Netuno<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 1,0 10 <sup>26<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 1,2 10 <sup>6<\/sup><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 11.07 <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Peso-aceleracion-de-la-gravedad-y-masa\"><\/span> Peso, acelera\u00e7\u00e3o da gravidade e massa<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> Peso, acelera\u00e7\u00e3o da gravidade e massa s\u00e3o tr\u00eas conceitos da f\u00edsica intimamente relacionados, por\u00e9m, \u00e9 preciso ter um bom entendimento do que \u00e9 cada um deles e saber diferenci\u00e1-los.<\/p>\n<p> <strong>Peso<\/strong> \u00e9 a for\u00e7a gravitacional com a qual um corpo atrai outro corpo, por\u00e9m, a <strong>acelera\u00e7\u00e3o da gravidade<\/strong> \u00e9 a acelera\u00e7\u00e3o que transmite a for\u00e7a do peso ao corpo atra\u00eddo e, por fim, <strong>massa<\/strong> \u00e9 a quantidade de mat\u00e9ria de um corpo.<\/p>\n<p> Assim, o peso, a acelera\u00e7\u00e3o da gravidade e a massa do corpo sobre o qual atua a for\u00e7a do peso est\u00e3o matematicamente relacionados pela seguinte f\u00f3rmula:<\/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-c0cdb663ec9f8fe79fbecd960b50fc39_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P=m\\cdot g\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"75\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:6px\"> Ouro: <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:8px\"><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-fda1e51b12ba3624074fcbebad72b1fc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"14\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 o peso ou for\u00e7a gravitacional exercida por um campo gravitacional sobre um corpo de massa<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-fdc40b8ad1cdad0aab9d632215459d28_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"15\" style=\"vertical-align: 0px;\"><\/p>\n<p> , expresso em newtons. <\/span><\/li>\n<li style=\"margin-bottom:8px\"><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-fdc40b8ad1cdad0aab9d632215459d28_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"15\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a massa do corpo atra\u00edda pela for\u00e7a gravitacional do peso, expressa em quilogramas. <\/span><\/li>\n<li style=\"margin-bottom:8px\"><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-e88010d25c51c0c42c505ee1004ed182_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"g\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: -4px;\"><\/p>\n<p> \u00e9 a acelera\u00e7\u00e3o da gravidade do peso, expressa em m\/s <sup>2<\/sup> .<\/span><\/li>\n<\/ul>\n<p> Na verdade, as no\u00e7\u00f5es de massa e peso s\u00e3o muitas vezes confundidas, pois no dia a dia nos perguntamos \u201cquanto pesa?\u201d perguntando a massa de um objeto, quando dever\u00edamos dizer &#8220;qual \u00e9 a sua massa?&#8221;<\/p>\n<p> Se tiver alguma d\u00favida ou quiser saber mais, pode consultar o seguinte artigo: <\/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\/massa-e-peso\/\">Qual a diferen\u00e7a entre peso e massa?<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Este artigo explica o que \u00e9 a acelera\u00e7\u00e3o da gravidade (ou acelera\u00e7\u00e3o gravitacional). Assim, voc\u00ea encontrar\u00e1 a defini\u00e7\u00e3o de acelera\u00e7\u00e3o da gravidade, como ela \u00e9 calculada e qual \u00e9 o valor da acelera\u00e7\u00e3o da gravidade nos diferentes planetas. O que \u00e9 acelera\u00e7\u00e3o da gravidade? A acelera\u00e7\u00e3o da gravidade , tamb\u00e9m chamada de acelera\u00e7\u00e3o gravitacional , &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/physigeek.com\/pt\/aceleracao-devido-a-gravidade-ou-aceleracao-gravitacional\/\"> <span class=\"screen-reader-text\">Acelera\u00e7\u00e3o devido \u00e0 gravidade (ou acelera\u00e7\u00e3o gravitacional)<\/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":[5],"tags":[],"class_list":["post-237","post","type-post","status-publish","format-standard","hentry","category-dinamico"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u25b7 Acelera\u00e7\u00e3o da gravidade (ou acelera\u00e7\u00e3o gravitacional)<\/title>\n<meta name=\"description\" content=\"Aqui voc\u00ea descobrir\u00e1 o que \u00e9 a acelera\u00e7\u00e3o da gravidade (ou acelera\u00e7\u00e3o gravitacional), como ela \u00e9 calculada (f\u00f3rmula) e qual o seu valor.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/physigeek.com\/pt\/aceleracao-devido-a-gravidade-ou-aceleracao-gravitacional\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u25b7 Acelera\u00e7\u00e3o da gravidade (ou acelera\u00e7\u00e3o gravitacional)\" \/>\n<meta property=\"og:description\" content=\"Aqui voc\u00ea descobrir\u00e1 o que \u00e9 a 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