{"id":4504,"date":"2018-09-14T12:32:55","date_gmt":"2018-09-14T10:32:55","guid":{"rendered":"http:\/\/agora.xtec.cat\/ceiprellinars\/?p=4504"},"modified":"2018-09-14T12:35:36","modified_gmt":"2018-09-14T10:35:36","slug":"el-repte-del-primer-dia-intentem-encendre-una-bombeta-amb-patates-o-llimones","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/ceiprellinars\/grans\/el-repte-del-primer-dia-intentem-encendre-una-bombeta-amb-patates-o-llimones\/","title":{"rendered":"EL REPTE DEL PRIMER DIA : INTENTEM ENCENDRE UNA BOMBETA AMB PATATES O LLIMONES"},"content":{"rendered":"<p>Com cada any, comencem el curs amb un nou repte. Enguany el repte ha estat intentar encendre una bombeta amb una patata o una llimona. Vam fer grups de 4 i ens vam repartir el material: patates, monedes de coure, pals de zinc, bombetes, portabombetes, cable de coure i llimones.<\/p>\n<p>Cada grup tenia la seva idea, que van dibuixar en un full, per intentar muntar un circu\u00eft el\u00e8ctric, per\u00f2 cap grup va aconseguir encendre la bombeta.Un dels motius va ser que la corrent que gener\u00e0vem \u00a0en aquest circu\u00eft era de 1,5 v com a m\u00e0xim, mentre que la bombeta necessitava una pot\u00e8ncia de 3,5v.<\/p>\n<p>L&#8217;endem\u00e0 vam demanar ajut a un pare de l&#8217;escola que sabia for\u00e7a coses sobre l&#8217;electricitat. El Marc ens va explicar com funciona l&#8217;electricitat :<\/p>\n<ul>\n<li>Els \u00e0toms estan formats per electrons, protons i neutrons. Els electrons s\u00f3n negatius i els protons positius. Els electrons es mouen i s\u00f3n els que generen energia.<\/li>\n<li>Tot circu\u00eft el\u00e8ctric ha de tenir coure i zinc.El que busquen els electrons \u00e9s estabilitat i es mouen per tal d&#8217;aconseguir-la, per tant , com que el el coure t\u00e9 m\u00e9s electrons que el zinc , els electrons del coure volen anar cap el zinc perqu\u00e8 en t\u00e9 menys i aix\u00f2 genera energia.<\/li>\n<li>Les patates tenen un l\u00edquid \u00e0cid per on es mouen els electrons del coure cap el zinc.<\/li>\n<li>El Marc ens explica que les piles ja tenen dins seu el coure, les piles i l&#8217;\u00e0cid.<\/li>\n<li>Els neutrons i els protons d&#8217;un s\u00f2lid no es mouen , nom\u00e9s salten els electrons.Mentre que en un l\u00edquid o gas es mouen els protons i els neutrons. El pl\u00e0stic no \u00e9s conductor i els electrons no es mouen. Quan s&#8217;acumulen molts electrons en un pl\u00e0stic genera electricitat est\u00e0tica.<\/li>\n<li>Les bateries antigues del m\u00f2bil la bateria no tenia tapa i quan ja estava carregada els electrons sobrants es perdien. Mentre que les bateries actuals ja tenen tapa i un cop est\u00e0 carregada ja no hi poden entrar m\u00e9s \u00a0electrons.<\/li>\n<li>Una altra manera de generar energia \u00e9s amb un iman, empentant els electrons perqu\u00e8 es moguin. L&#8217;electricitat que genera un iman \u00e9s energia mec\u00e0nica.<\/li>\n<li>La for\u00e7a d&#8217;alguna cosa tamb\u00e9 genera energia, com per exemple un salt d&#8217;aigua, generant energia hidr\u00e0ulica.<\/li>\n<\/ul>\n<p>Vam intentar fer primer un circu\u00eft en s\u00e8rie, per\u00f2 quan vam veure que no aconsegu\u00edem encendre la bombeta ho vam provar en paral.lel. En paral.lel hi ha m\u00e9s volts , per\u00f2 va m\u00e9s lent perqu\u00e8 hi ha m\u00e9s electrons.(El circu\u00eft continu funcionaria com la riera de Rellinars, menys aigua per\u00f2 m\u00e9s r\u00e0pida i el circu\u00eft paral.lel seria com el riu Ebre, amb m\u00e9s aigua per\u00f2 m\u00e9s lent). La velocitat amb la qual circulen els electrons es mesura amb ampers.<\/p>\n<p>Tot i que les condicions del circu\u00efts eren id\u00f2nies per que el circu\u00eft funcion\u00e9s no vam aconseguir encendre cap bombeta. Finalment ho vam provar amb un led, que necessita menys electrons per encendre&#8217;s , per\u00f2 tampoc ho vam aconseguir.<\/p>\n<p>Volem agra\u00efr al Marc que vingu\u00e9s ahir a la nostre classe perqu\u00e8 ens va ajudar molt a entendre com funciona l&#8217;electricitat.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge8.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-4516\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge8.jpg\" alt=\"\" width=\"483\" height=\"363\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge8.jpg 555w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge8-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge8-200x150.jpg 200w\" sizes=\"auto, (max-width: 483px) 100vw, 483px\" \/><\/a> <a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge9.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-4517\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge9.jpg\" alt=\"\" width=\"480\" height=\"360\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge9.jpg 591w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge9-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge9-200x150.jpg 200w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/a> <a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge7.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-4515\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge7.jpg\" alt=\"\" width=\"480\" height=\"360\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge7.jpg 520w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge7-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge7-200x150.jpg 200w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/a> <a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge6.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-4514\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge6.jpg\" alt=\"\" width=\"478\" height=\"358\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge6.jpg 414w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge6-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge6-200x150.jpg 200w\" sizes=\"auto, (max-width: 478px) 100vw, 478px\" \/><\/a><a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge5.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-4513\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge5.jpg\" alt=\"\" width=\"482\" height=\"361\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge5.jpg 555w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge5-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge5-200x150.jpg 200w\" sizes=\"auto, (max-width: 482px) 100vw, 482px\" \/><\/a> <a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge4.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-4512\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge4.jpg\" alt=\"\" width=\"478\" height=\"359\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge4.jpg 461w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge4-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge4-200x150.jpg 200w\" sizes=\"auto, (max-width: 478px) 100vw, 478px\" \/><\/a> <a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-4511\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge3.jpg\" alt=\"\" width=\"484\" height=\"363\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge3.jpg 567w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge3-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge3-200x150.jpg 200w\" sizes=\"auto, (max-width: 484px) 100vw, 484px\" \/><\/a> <a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-4510\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge2.jpg\" alt=\"\" width=\"479\" height=\"359\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge2.jpg 520w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge2-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge2-200x150.jpg 200w\" sizes=\"auto, (max-width: 479px) 100vw, 479px\" \/><\/a><a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-4509\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge1.jpg\" alt=\"\" width=\"484\" height=\"363\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge1.jpg 579w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge1-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge1-200x150.jpg 200w\" sizes=\"auto, (max-width: 484px) 100vw, 484px\" \/><\/a><a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge10.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-4508\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge10.jpg\" alt=\"\" width=\"481\" height=\"361\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge10.jpg 990w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge10-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge10-768x576.jpg 768w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2018\/09\/Imatge10-200x150.jpg 200w\" sizes=\"auto, (max-width: 481px) 100vw, 481px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Com cada any, comencem el curs amb un nou repte. Enguany el repte ha estat intentar encendre una bombeta amb una patata o una llimona. Vam fer grups de 4 i ens vam repartir el material: patates, monedes de coure, pals de zinc, bombetes, portabombetes, cable de coure i llimones. Cada grup tenia la seva [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","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,"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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[9],"tags":[],"class_list":["post-4504","post","type-post","status-publish","format-standard","hentry","category-grans"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/posts\/4504","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/comments?post=4504"}],"version-history":[{"count":2,"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/posts\/4504\/revisions"}],"predecessor-version":[{"id":4519,"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/posts\/4504\/revisions\/4519"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/media?parent=4504"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/categories?post=4504"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/tags?post=4504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}