{"id":2717,"date":"2023-11-06T12:44:05","date_gmt":"2023-11-06T11:44:05","guid":{"rendered":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/?p=2717"},"modified":"2026-02-27T00:22:44","modified_gmt":"2026-02-26T23:22:44","slug":"taller-experimentacio-7-electricitat-estatica","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/portada\/taller-experimentacio-7-electricitat-estatica\/","title":{"rendered":"Taller experimentaci\u00f3 7: Electricitat est\u00e0tica"},"content":{"rendered":"<p>El procediment que hem seguit \u00e9s el seg\u00fcent:<\/p>\n<p>Creem una esfera amb plastilina i la col\u00b7loquem sobre una taula per establir una base que permeti fixar un llapis en una posici\u00f3 vertical amb la punta cap amunt.<\/p>\n<p>Dobleguem un paper en formar un quadrat\u00a0 i posteriorment el despleguem.<\/p>\n<p>Situem el paper sobre el llapis de manera que la punta quedi centrada en el paper.<\/p>\n<p>Freguem el globus inflat amb els cabells o amb un tros de tela durant 30 segons. Despr\u00e9s, acostem el globus al paper i notarem que podem fer girar el paper sense arribar a tocar-lo.<\/p>\n<p>Explicaci\u00f3:<\/p>\n<p>La mat\u00e8ria \u00e9s neutra, compost de la mateixa quantitat de part\u00edcules amb c\u00e0rrega positiva (protons) i part\u00edcules amb c\u00e0rrega negativa (electrons). Els electrons tenen m\u00e9s llibertat i mobilitat.<\/p>\n<p>En fregar el globus amb els cabells, aquest adquireix c\u00e0rrega negativa agafant electrons. Quan l&#8217;apropem al paper, es produeix una redistribuci\u00f3 de c\u00e0rregues: els electrons del paper s&#8217;allunyen del globus, ja que les c\u00e0rregues iguals es repel\u00b7leixen. No obstant aix\u00f2, les c\u00e0rregues positives s&#8217;apropen, atretes per les c\u00e0rregues negatives del globus, provocant el moviment del paper. Molt curi\u00f3s, no?<\/p>\n<p>Us deixem unes fotos:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3880 alignleft\" src=\"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2023\/11\/admin-ajax-4-e1772147768649.jpg\" alt=\"\" width=\"428\" height=\"432\" srcset=\"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2023\/11\/admin-ajax-4-e1772147768649.jpg 300w, https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2023\/11\/admin-ajax-4-e1772147768649-297x300.jpg 297w, https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2023\/11\/admin-ajax-4-e1772147768649-150x150.jpg 150w\" sizes=\"auto, (max-width: 428px) 100vw, 428px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2718 size-full\" src=\"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2024\/01\/IMG_0998-COLLAGE-e1772147701195.jpg\" alt=\"\" width=\"449\" height=\"452\" srcset=\"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2024\/01\/IMG_0998-COLLAGE-e1772147701195.jpg 449w, https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2024\/01\/IMG_0998-COLLAGE-e1772147701195-298x300.jpg 298w, https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2024\/01\/IMG_0998-COLLAGE-e1772147701195-150x150.jpg 150w\" sizes=\"auto, (max-width: 449px) 100vw, 449px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>El procediment que hem seguit \u00e9s el seg\u00fcent: Creem una esfera amb plastilina i la col\u00b7loquem sobre una taula per establir una base que permeti fixar un llapis en una posici\u00f3 vertical amb la punta cap amunt. Dobleguem un paper en formar un quadrat\u00a0 i posteriorment el despleguem. Situem el paper sobre el llapis de [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":2719,"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":[70,164,4,5,163],"tags":[171],"class_list":["post-2717","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-experimentacio","category-experimentacio-tallers","category-portada","category-primaria","category-primaria-2","tag-experiments23-24"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/posts\/2717","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/comments?post=2717"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/posts\/2717\/revisions"}],"predecessor-version":[{"id":3884,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/posts\/2717\/revisions\/3884"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/media\/2719"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/media?parent=2717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/categories?post=2717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/tags?post=2717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}