{"id":25827,"date":"2023-11-29T11:55:27","date_gmt":"2023-11-29T10:55:27","guid":{"rendered":"https:\/\/agora.xtec.cat\/col-imma-lloret\/?p=25827"},"modified":"2024-02-28T21:19:34","modified_gmt":"2024-02-28T20:19:34","slug":"experiments-novembre","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/col-imma-lloret\/general\/experiments-novembre\/","title":{"rendered":"Experiments novembre"},"content":{"rendered":"<p>Durant el mes de novembre hem fet els seg\u00fcents experiments<\/p>\n<ul>\n<li>L&#8217;espelma: La flama de l&#8217;espelma consumeix oxigen de l&#8217;aire que hi ha dins del pot fins que l&#8217;espelma acaba per apagar-se.<br \/>\nA l&#8217;inici de l&#8217;experiment, la pressi\u00f3 sobre l&#8217;aigua \u00e9s igual a l&#8217;interior que a l&#8217;exterior del pot. Per\u00f2, durant la combusti\u00f3, la pressi\u00f3 a l&#8217;interior del pot disminueix i, aleshores, la pressi\u00f3 de l&#8217;aire exterior, la pressi\u00f3 atmosf\u00e8rica, empeny l&#8217;aigua cap a l&#8217;interior del pot.<\/li>\n<li>Nivell de l&#8217;aigua: Hem omplert fins la meitat ampolles de diferents tamanys i hi hem fet una senyal marcant el nivell. Quan les ampolles canvien de posici\u00f3 hem observat que el nivell de l&#8217;aigua sempre es mant\u00e9 en posici\u00f3 horitzontal.<\/li>\n<li>La fletxa invertida: La refracci\u00f3 \u00e9s el canvi de direcci\u00f3 que experimenta un raig de llum quan canvia de medi. I la causa d\u2019aquest canvi de direcci\u00f3 \u00e9s degut a la difer\u00e8ncia de velocitat de propagaci\u00f3 de la llum en medis diferents. Llavors, quan la llum un cop ha passat pels diferents materials, ha canviat de direcci\u00f3 i arriba un punt on s&#8217;uneix (punt focal), i per tant la fletxa la veiem invertida perqu\u00e8 els raigs de llum que s\u2019han refractat, es creuen i la llum que era al costat dret ara est\u00e0 en l&#8217;esquerra, fent que la fletxa sembla que s&#8217;hagi invertit.<\/li>\n<li>Electricitat est\u00e0tica: Hem agafat un globus inflat i l&#8217;hem fregat amb llana. Despr\u00e9s l&#8217;hem acostat a papers de seda i han quedat enganxats al globus. Ha passat el mateix quan l&#8217;hem acostat als cabells. Aix\u00f2 passa perqu\u00e8 els electrons s\u00f3n invisibles i salten d&#8217;un material a l&#8217;altre. Els contraris s&#8217;atrauen: c\u00e0rrega positiva amb c\u00e0rrega negativa. I els similars es repel\u00b7leixen<a href=\"https:\/\/photos.app.goo.gl\/8UFVRZkmhhowcNA66\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-25920 size-full\" src=\"https:\/\/agora.xtec.cat\/col-imma-lloret\/wp-content\/uploads\/usu1420\/2023\/11\/image.png\" alt=\"\" width=\"218\" height=\"261\" \/><\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Els experiments&#8230;&hellip;  <a href=\"https:\/\/agora.xtec.cat\/col-imma-lloret\/general\/experiments-novembre\/\" title=\"Read Experiments novembre\">Llegeix m\u00e9s\u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":25828,"comment_status":"closed","ping_status":"closed","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,"footnotes":""},"categories":[760,1,121,670,29],"tags":[],"class_list":["post-25827","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-2023-2024","category-general","category-i5","category-nascuts-2018","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/col-imma-lloret\/wp-json\/wp\/v2\/posts\/25827","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/col-imma-lloret\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/col-imma-lloret\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/col-imma-lloret\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/col-imma-lloret\/wp-json\/wp\/v2\/comments?post=25827"}],"version-history":[{"count":6,"href":"https:\/\/agora.xtec.cat\/col-imma-lloret\/wp-json\/wp\/v2\/posts\/25827\/revisions"}],"predecessor-version":[{"id":26027,"href":"https:\/\/agora.xtec.cat\/col-imma-lloret\/wp-json\/wp\/v2\/posts\/25827\/revisions\/26027"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/col-imma-lloret\/wp-json\/wp\/v2\/media\/25828"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/col-imma-lloret\/wp-json\/wp\/v2\/media?parent=25827"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/col-imma-lloret\/wp-json\/wp\/v2\/categories?post=25827"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/col-imma-lloret\/wp-json\/wp\/v2\/tags?post=25827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}