{"id":6374,"date":"2023-11-23T09:50:04","date_gmt":"2023-11-23T08:50:04","guid":{"rendered":"https:\/\/agora.xtec.cat\/escolamontserratina\/?p=6374"},"modified":"2023-11-23T19:27:52","modified_gmt":"2023-11-23T18:27:52","slug":"experimentem-el-coet-daire","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/escolamontserratina\/portada\/experimentem-el-coet-daire\/","title":{"rendered":"Experimentem: el coet d&#8217;aire"},"content":{"rendered":"<p style=\"text-align: justify;\">Aquesta setmana ha sigut la setmana de la ci\u00e8ncia. Els nens i nenes de 3r hem presentat als alumnes de 5\u00e8 el nostre experiment: \u201c<strong><em>el coet d\u2019aire\u201d.<\/em><\/strong><\/p>\n<p style=\"text-align: justify;\">Quan vam fer l\u2019experiment a l\u2019aula i vam veure aquesta nau construida amb material reciclat, la pregunta que se\u2019ns va plantejar va ser la seg\u00fcent: <strong><em>com podem moure el coet sense tocar-lo?<\/em><\/strong> Primer, vam elaborar les nostres hip\u00f2tesis:\u00a0\u00a0\u00a0\u201c<em>necessitem aire\u201d, \u201cbufant\u201d,<\/em> deien alguns. Ho vam intentar, i , tot i que es movia una mica, nom\u00e9s avan\u00e7ava uns breus cent\u00edmetres. Alg\u00fa va encertar de ple: \u201c<em>amb un globus, l\u2019inflem d\u2019aire i aix\u00f2 mour\u00e0 el coet<\/em>\u201d. I aix\u00ed ho vam fer. A part d\u2019un globus, necessit\u00e0vem una canyeta i celo. El globus s\u2019enganxa a la canyeta amb celo, ben unit perqu\u00e8 no s\u2019escapi l\u2019aire, i tot seguit s\u2019enganxa la canyeta al coet, tal i com es veu a la imatge.<\/p>\n<p><a href=\"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2165-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-6376 aligncenter\" src=\"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2165-768x1024.jpg\" alt=\"\" width=\"379\" height=\"505\" srcset=\"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2165-768x1024.jpg 768w, https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2165-225x300.jpg 225w, https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2165-1152x1536.jpg 1152w, https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2165-1536x2048.jpg 1536w, https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2165-scaled.jpg 1920w\" sizes=\"auto, (max-width: 379px) 100vw, 379px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\">Un cop est\u00e0 unit, es bufa a trav\u00e9s de la canyeta i el globus s\u2019omple d\u2019aire. Quan el deixem anar, el coet es mou, degut a l\u2019impuls que li proporciona l\u2019aire en sortir de la canyeta. Aix\u00f2 es degut a la <strong>tercera llei de Newton, el principi d\u2019acci\u00f3-reacci\u00f3<\/strong>, que diu que <em>sempre <\/em><em>que un cos exerceix una for\u00e7a sobre un <\/em><em>altre, aquest alhora exerceix una for\u00e7a <\/em><em>igual, per\u00f2 de sentit contrari, sobre el <\/em><em>primer.<\/em><\/p>\n<p><a href=\"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2163-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-6377\" src=\"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2163-768x1024.jpg\" alt=\"\" width=\"300\" height=\"400\" srcset=\"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2163-768x1024.jpg 768w, https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2163-225x300.jpg 225w, https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2163-1152x1536.jpg 1152w, https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2163-1536x2048.jpg 1536w, https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2163-scaled.jpg 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2193-1-2-scaled.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-6378\" src=\"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2193-1-2-768x1024.jpeg\" alt=\"\" width=\"300\" height=\"400\" srcset=\"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2193-1-2-768x1024.jpeg 768w, https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2193-1-2-225x300.jpeg 225w, https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2193-1-2-1152x1536.jpeg 1152w, https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2193-1-2-1536x2048.jpeg 1536w, https:\/\/agora.xtec.cat\/escolamontserratina\/wp-content\/uploads\/usu275\/2023\/11\/IMG_2193-1-2-scaled.jpeg 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\">Despr\u00e9s, vam voler comprovar qu\u00e8 passa si posem la canyeta cap a munt o cap per abaix, i el coet es quedava quiet, perqu\u00e8 l\u2019aire va en direcci\u00f3 perpendicular a la nau i no li dona impuls. Aix\u00ed tamb\u00e9 va quedar demostrada la tercera llei de Newton.<\/p>\n<p style=\"text-align: justify;\">Un de nosaltres es va fixar que el globus estava mullat per dins, i aleshores vam tornar a fer les nostres hip\u00f2tesis sobre per qu\u00e8 passava aix\u00f2. Aix\u00f2 \u00e9s degut al vapor d\u2019aigua que es condensa i empanya les parets del globus, com quan ens dutxem amb aigua calenta o quan fa fred i s\u2019empanyen els vidres.<\/p>\n<p style=\"text-align: justify;\">Va ser un experiment molt interessant i vam aprendre molt. Si vosaltres tamb\u00e9 voleu construir el vostre vehicle reciclat propulsat amb aire, a continuaci\u00f3 us deixem un link on explica els passos a seguir, i aix\u00ed podreu comprovar vosaltres mateixos la tercera llei de Newton.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/I2IV3YdY3cc?feature=shared\" width=\"560\" height=\"314\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p>Esperem que us hagi agradat el nostre experiment.<\/p>\n<p><strong><em>3r A, classe dels molins de vent.<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aquesta setmana ha sigut la setmana de la ci\u00e8ncia. Els nens i nenes de 3r hem presentat als alumnes de 5\u00e8 el nostre experiment: \u201cel coet d\u2019aire\u201d.<br \/>\nQuan vam fer l\u2019experiment a l\u2019aula i vam veure aquesta nau construida amb material reciclat, la pregunta que se\u2019ns&hellip;  <a href=\"https:\/\/agora.xtec.cat\/escolamontserratina\/portada\/experimentem-el-coet-daire\/\" title=\"Read Experimentem: el coet d&#8217;aire\">Llegeix m\u00e9s\u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":6378,"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,"footnotes":""},"categories":[12,4,5],"tags":[143,195,193],"class_list":["post-6374","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3r","category-portada","category-primaria","tag-experiments","tag-setmanadelaciencia","tag-tercer"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-json\/wp\/v2\/posts\/6374","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-json\/wp\/v2\/comments?post=6374"}],"version-history":[{"count":6,"href":"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-json\/wp\/v2\/posts\/6374\/revisions"}],"predecessor-version":[{"id":6410,"href":"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-json\/wp\/v2\/posts\/6374\/revisions\/6410"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-json\/wp\/v2\/media\/6378"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-json\/wp\/v2\/media?parent=6374"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-json\/wp\/v2\/categories?post=6374"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolamontserratina\/wp-json\/wp\/v2\/tags?post=6374"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}