{"id":139,"date":"2016-10-31T15:25:08","date_gmt":"2016-10-31T17:25:08","guid":{"rendered":"http:\/\/colegiozeta.com.br\/buritama\/?p=139"},"modified":"2016-10-31T15:25:08","modified_gmt":"2016-10-31T17:25:08","slug":"fisica-o-que-e-referencial","status":"publish","type":"post","link":"https:\/\/colegiozeta.com.br\/buritama\/fisica-o-que-e-referencial\/","title":{"rendered":"F\u00edsica: O que \u00e9 referencial?"},"content":{"rendered":"<p>Um referencial \u00e9 o corpo ou lugar a partir do qual as observa\u00e7\u00f5es de fen\u00f4menos diversos s\u00e3o feitas. Ao mudar o referencial, a percep\u00e7\u00e3o dos fen\u00f4menos tamb\u00e9m muda. O referencial pode ser entendido como o ponto de vista de um observador colocado em determinado lugar no espa\u00e7o.<\/p>\n<p><strong>Rela\u00e7\u00e3o entre Movimento e Referencial<\/strong><\/p>\n<p>S\u00f3 podemos dizer que um objeto est\u00e1 em movimento ou n\u00e3o a partir de um referencial. \u00c9 poss\u00edvel que um corpo esteja em movimento para um observador e parado para outro. O movimento e o repouso dependem do referencial!<\/p>\n<p><strong>Rela\u00e7\u00e3o entre Movimento e Trajet\u00f3ria<\/strong><\/p>\n<p>O referencial tamb\u00e9m define o tipo de trajet\u00f3ria de objetos em movimento. Imagine que agora voc\u00ea est\u00e1 parado em uma rua qualquer quando v\u00ea um objeto caindo de um carro em movimento. A sua vis\u00e3o da trajet\u00f3ria feita pelo objeto \u00e9 diferente da vis\u00e3o do motorista. Enquanto voc\u00ea v\u00ea um caminho em formato de par\u00e1bola, o motorista v\u00ea o objeto caindo em linha reta.<\/p>\n<p><strong>Referencial inercial<\/strong><\/p>\n<p>Um referencial \u00e9 denominado de inercial se para ele as leis de Newton forem v\u00e1lidas. Referenciais inerciais devem estar em repouso ou em movimento retil\u00edneo uniforme. Se tomarmos o interior de uma aeronave no momento da acelera\u00e7\u00e3o da decolagem como refer\u00eancia para observa\u00e7\u00e3o de fen\u00f4menos, as an\u00e1lises feitas estariam comprometidas, pois, em movimento acelerado ou de rota\u00e7\u00e3o, o referencial \u00e9 considerado n\u00e3o inercial.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Um referencial \u00e9 o corpo ou lugar a partir do qual as observa\u00e7\u00f5es de fen\u00f4menos diversos s\u00e3o feitas. Ao mudar o referencial, a percep\u00e7\u00e3o dos fen\u00f4menos tamb\u00e9m muda. O referencial pode ser entendido como o ponto de vista de um observador colocado em determinado lugar no espa\u00e7o. Rela\u00e7\u00e3o entre Movimento e Referencial S\u00f3 podemos dizer [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":137,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-139","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sem-categoria"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>F\u00edsica: O que \u00e9 referencial? - Col\u00e9gio Zeta Buritama<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/colegiozeta.com.br\/buritama\/fisica-o-que-e-referencial\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"F\u00edsica: O que \u00e9 referencial? - Col\u00e9gio Zeta Buritama\" \/>\n<meta property=\"og:description\" content=\"Um referencial \u00e9 o corpo ou lugar a partir do qual as observa\u00e7\u00f5es de fen\u00f4menos diversos s\u00e3o feitas. 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