{"id":4281,"date":"2017-04-26T12:07:21","date_gmt":"2017-04-26T10:07:21","guid":{"rendered":"http:\/\/agora.xtec.cat\/zergavarresa\/?p=4281"},"modified":"2017-04-26T13:13:39","modified_gmt":"2017-04-26T11:13:39","slug":"experimentem-amb-la-llum-i-loptic","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/zergavarresa\/escola-els-roures\/grups-els-roures\/cicle-superior-els-roures\/experimentem-amb-la-llum-i-loptic\/","title":{"rendered":"EXPERIMENTEM AMB LA LLUM I L&#8217;\u00d2PTICA"},"content":{"rendered":"<p>Els alumnes de CS hem estat experimentant amb la llum i \u00f2ptica durant unes quantes sessions. Hem compartit els nostres descobriments amb els alumnes de CM tot fent uns quants experiments. Hem descobert varies coses, que la llum viatja en l\u00ednia recta i molt r\u00e0pid, que la llum blanca est\u00e0 composta per 7 colors ( els colors de l&#8217;arc de Sant Mart\u00ed), que existeixen lents que fan que els rajos de llum es dispersin o es concentrin (lents convergents, lents divergents), que les persones que s\u00f3n miops porten les ulleres amb lents divergents i que els hipermetrops porten lents convergents.<\/p>\n<p>Hem descobert tot aix\u00f2 amb l&#8217;ajuda de 5 expermients: lents convergents i lents divergents, el projector, el microscopi, ombra i penombra, descomposici\u00f3 de la llum blanca. A trav\u00e9s d&#8217;una maleta amb material preparat.<\/p>\n<p>Tamb\u00e9 ens hem adonat que les imatges que veiem a trav\u00e9s de la caixa fosca ens arriben al rev\u00e9s.<\/p>\n<div id=\"2050F\" style=\"width:600px; height:400px; display:none;\">\n<img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/nEibX53nVPmmq2CT5ENiDJSTBpg8pVFT9z3eIHohjLNpjrlxCBPF43M_YxsSWLX5hHI0eCNLgt5nZE8Ur8Gp7mhcdry6zMRL5MDutSTHIFb6HmuNuStnXDIF8A7vhCpFQqLo6QKnKhyPsv3UxQZnJFkRYjoXIvle_mvHfIBQ8cR5OgoPziVkv3W_RkflyYBrlSxslY9WGgRJGz275AVn5lwkL4ukdzsHomTvUbNTB7QEQpyLjPwYOcP6fN-ngB8PfUT7NhvfzPJ3qpLIj9fqVxFmAE3o7g7W8AKd0f2PbwndmTWJnALPkVMvKoVz-sGXYnYuTWGWBb5N5UYX3WyohBxxJ007lkSDnSYhdrBDL6-8sFqJ5hDznGaA9eg9l-yFspkdMKaug2tMqUVsWdkUUyHDyz7EfQ3aL-iorT-NSO6rv0KhpY1XEYEFyYrkdVYugH95chukTJB5QUzUqpijoc3HnoId5erSMxujRmKTtPiEOyYALlwFsWaLf7nUEkeoG0uhiHnD1y4REh414KFos1ucnxSgKy_FH7HlK0MQ6yxo5z8JshSD1kTPGWPYzXIK7AsFonRZ_vnIPDAUwRDiB7OGUNq6y_HRQ7MXJ89zhwcDLA=w800-h600-no\" 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data-link=\"https:\/\/photos.google.com\/share\/AF1QipNSIdCj-4RgaxrRldD5J_e3fS_TjmlquqHsNOSJxyGZLmpn8MB2lsZCSKo6An2frA\/photo\/AF1QipOSAuXTpg7ZOUDUJPlvPhTqBVZvBrtZM9WjCS0?key=RU1uWGg2TWMtR0lCaWdZX01jTkVHblM5dGtOUjF3\">\n<\/div>\n<p><script type=\"text\/javascript\" src=\"https:\/\/cdn.jsdelivr.net\/jquery\/1.12.3\/jquery.min.js\"><\/script><script>\n(MyGalleries=(typeof MyGalleries === 'undefined' ? 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\u00f2ptica.<\/p>\n","protected":false},"author":11,"featured_media":4286,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"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":"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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