{"id":5312,"date":"2026-01-05T08:49:39","date_gmt":"2026-01-05T08:49:39","guid":{"rendered":"https:\/\/escoladigital.madeira.gov.pt\/ebsscruz\/?p=5312"},"modified":"2026-01-06T08:50:25","modified_gmt":"2026-01-06T08:50:25","slug":"desafio-matematico-cientifico-depois-de-ver-o-video","status":"publish","type":"post","link":"https:\/\/escoladigital.madeira.gov.pt\/ebsscruz\/2026\/01\/05\/desafio-matematico-cientifico-depois-de-ver-o-video\/","title":{"rendered":"DESAFIO MATEM\u00c1TICO-CIENT\u00cdFICO | Depois de ver o v\u00eddeo\u2026"},"content":{"rendered":"\n<p><img decoding=\"async\" height=\"16\" width=\"16\" alt=\"\ud83c\udfa5\" src=\"https:\/\/static.xx.fbcdn.net\/images\/emoji.php\/v9\/tff\/1\/16\/1f3a5.png\"> Isto \u00e9 Matem\u00e1tica \u2013 T09E01 \u201cCenas ao N\u00edvel do Terabit\u201d<\/p>\n\n\n\n<p><a><\/a>Depois de veres o epis\u00f3dio sobre comunica\u00e7\u00f5es, fibra \u00f3ptica e reflex\u00e3o total, tens um desafio para experimentar e explicar! <img decoding=\"async\" height=\"16\" width=\"16\" alt=\"\ud83d\udc47\" src=\"https:\/\/static.xx.fbcdn.net\/images\/emoji.php\/v9\/t4f\/1\/16\/1f447.png\"><\/p>\n\n\n\n<p><img decoding=\"async\" height=\"16\" width=\"16\" alt=\"\u2705\" src=\"https:\/\/static.xx.fbcdn.net\/images\/emoji.php\/v9\/t33\/1\/16\/2705.png\"> Desafio: \u201cConsegues fazer a luz \u2018ficar presa\u2019?\u201d<\/p>\n\n\n\n<p>Materiais (em casa, com seguran\u00e7a):<\/p>\n\n\n\n<p>1 lanterna do telem\u00f3vel<\/p>\n\n\n\n<p>1 copo transparente<\/p>\n\n\n\n<p>\u00c1gua<\/p>\n\n\n\n<p>1 folha branca (ou parede clara)<\/p>\n\n\n\n<p>O que fazer:<\/p>\n\n\n\n<p>Enche o copo com \u00e1gua.<\/p>\n\n\n\n<p>Apaga a luz do quarto (ou reduz ao m\u00e1ximo).<\/p>\n\n\n\n<p>Encosta a lanterna ao lado do copo e aponta para a \u00e1gua.<\/p>\n\n\n\n<p>Observa o que acontece com a luz dentro do copo e na folha\/parede.<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"16\" width=\"16\" alt=\"\ud83d\udd0e\" src=\"https:\/\/static.xx.fbcdn.net\/images\/emoji.php\/v9\/t42\/1\/16\/1f50e.png\"> Miss\u00e3o:<\/p>\n\n\n\n<p>Tenta encontrar uma posi\u00e7\u00e3o em que a luz pare\u00e7a \u201cviajar\u201d e refletir dentro da \u00e1gua.<\/p>\n\n\n\n<p>Depois, responde:<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"16\" width=\"16\" alt=\"\u270d\ufe0f\" src=\"https:\/\/static.xx.fbcdn.net\/images\/emoji.php\/v9\/te2\/1\/16\/270d.png\"> Perguntas do desafio<\/p>\n\n\n\n<p>Em que posi\u00e7\u00e3o a luz fica mais \u201cconcentrada\u201d e porqu\u00ea?<\/p>\n\n\n\n<p>O que tem de acontecer para haver reflex\u00e3o total? (pista: \u00e2ngulo!)<\/p>\n\n\n\n<p>Como \u00e9 que isto se relaciona com a fibra \u00f3ptica?<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"16\" width=\"16\" alt=\"\ud83d\udcf8\" src=\"https:\/\/static.xx.fbcdn.net\/images\/emoji.php\/v9\/tde\/1\/16\/1f4f8.png\"> B\u00f3nus: tira uma foto (ou faz um mini-v\u00eddeo de 10s) da tua melhor experi\u00eancia e partilha com o teu professor(a) \/ turma (apenas se for pedido e com autoriza\u00e7\u00e3o).<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"16\" width=\"16\" alt=\"\ud83d\udcac\" src=\"https:\/\/static.xx.fbcdn.net\/images\/emoji.php\/v9\/t6e\/1\/16\/1f4ac.png\"> Deixa nos coment\u00e1rios a tua resposta \u00e0 pergunta 3: \u201cA \u00e1gua funciona como uma fibra \u00f3ptica? Porqu\u00ea?\u201d<\/p>\n\n\n\n<p><a href=\"https:\/\/www.facebook.com\/hashtag\/isto%C3%A9matem%C3%A1tica?__eep__=6&amp;__cft__[0]=AZYj0KlZo6L3LMFofYjrveHwT__TY433asCRW5IBXgAgiC2EmO-uWc0r3OmI_24BurRIZZ3xtaYLFXBgGcckbnll3pH3fm4sHKrQz48peXMM3eayBOiUDA8DZ_4vJEQnd60u3RPKmNkBSDaI11OQB5OKyp6ycd8q5-CnQR6IDqHKAD9c9FVHPMvR4qm4fQOYcok&amp;__tn__=*NK-R\">#Isto\u00c9Matem\u00e1tica<\/a><a href=\"https:\/\/www.facebook.com\/hashtag\/matem%C3%A1tica?__eep__=6&amp;__cft__[0]=AZYj0KlZo6L3LMFofYjrveHwT__TY433asCRW5IBXgAgiC2EmO-uWc0r3OmI_24BurRIZZ3xtaYLFXBgGcckbnll3pH3fm4sHKrQz48peXMM3eayBOiUDA8DZ_4vJEQnd60u3RPKmNkBSDaI11OQB5OKyp6ycd8q5-CnQR6IDqHKAD9c9FVHPMvR4qm4fQOYcok&amp;__tn__=*NK-R\">#Matem\u00e1tica<\/a><a href=\"https:\/\/www.facebook.com\/hashtag\/reflex%C3%A3ototal?__eep__=6&amp;__cft__[0]=AZYj0KlZo6L3LMFofYjrveHwT__TY433asCRW5IBXgAgiC2EmO-uWc0r3OmI_24BurRIZZ3xtaYLFXBgGcckbnll3pH3fm4sHKrQz48peXMM3eayBOiUDA8DZ_4vJEQnd60u3RPKmNkBSDaI11OQB5OKyp6ycd8q5-CnQR6IDqHKAD9c9FVHPMvR4qm4fQOYcok&amp;__tn__=*NK-R\">#Reflex\u00e3oTotal<\/a><a href=\"https:\/\/www.facebook.com\/hashtag\/fibra%C3%B3ptica?__eep__=6&amp;__cft__[0]=AZYj0KlZo6L3LMFofYjrveHwT__TY433asCRW5IBXgAgiC2EmO-uWc0r3OmI_24BurRIZZ3xtaYLFXBgGcckbnll3pH3fm4sHKrQz48peXMM3eayBOiUDA8DZ_4vJEQnd60u3RPKmNkBSDaI11OQB5OKyp6ycd8q5-CnQR6IDqHKAD9c9FVHPMvR4qm4fQOYcok&amp;__tn__=*NK-R\">#Fibra\u00d3ptica<\/a><a href=\"https:\/\/www.facebook.com\/hashtag\/desafiostem?__eep__=6&amp;__cft__[0]=AZYj0KlZo6L3LMFofYjrveHwT__TY433asCRW5IBXgAgiC2EmO-uWc0r3OmI_24BurRIZZ3xtaYLFXBgGcckbnll3pH3fm4sHKrQz48peXMM3eayBOiUDA8DZ_4vJEQnd60u3RPKmNkBSDaI11OQB5OKyp6ycd8q5-CnQR6IDqHKAD9c9FVHPMvR4qm4fQOYcok&amp;__tn__=*NK-R\">#DesafioSTEM<\/a><a href=\"https:\/\/www.facebook.com\/hashtag\/grupodisciplinardematem%C3%A1tica?__eep__=6&amp;__cft__[0]=AZYj0KlZo6L3LMFofYjrveHwT__TY433asCRW5IBXgAgiC2EmO-uWc0r3OmI_24BurRIZZ3xtaYLFXBgGcckbnll3pH3fm4sHKrQz48peXMM3eayBOiUDA8DZ_4vJEQnd60u3RPKmNkBSDaI11OQB5OKyp6ycd8q5-CnQR6IDqHKAD9c9FVHPMvR4qm4fQOYcok&amp;__tn__=*NK-R\">#GrupoDisciplinarDeMatem\u00e1tica<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.facebook.com\/photo\/?fbid=1359687815958781&amp;set=a.311218170805756&amp;locale=pt_PT\">https:\/\/www.facebook.com\/photo\/?fbid=1359687815958781&amp;set=a.311218170805756&amp;locale=pt_PT<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Isto \u00e9 Matem\u00e1tica \u2013 T09E01 \u201cCenas ao N\u00edvel do Terabit\u201d Depois de veres o epis\u00f3dio sobre comunica\u00e7\u00f5es, fibra \u00f3ptica e [&hellip;]<\/p>\n","protected":false},"author":37,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-disable-related-posts":"","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":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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