{"id":1897,"date":"2017-01-13T15:20:45","date_gmt":"2017-01-13T15:20:45","guid":{"rendered":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/?p=1897"},"modified":"2017-01-13T15:27:30","modified_gmt":"2017-01-13T15:27:30","slug":"electricite-statique-2","status":"publish","type":"post","link":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/2017\/01\/13\/electricite-statique-2\/","title":{"rendered":"Electricit\u00e9 statique"},"content":{"rendered":"<p><a href=\"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-content\/uploads\/sites\/169\/2016\/12\/ballonplafond.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-thumbnail wp-image-1680\" src=\"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-content\/uploads\/sites\/169\/2016\/12\/ballonplafond-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p>Jeudi 12 janvier<\/p>\n<p>L&rsquo;exp\u00e9rience d&rsquo;Elouan: \u00a0Atelier sciences avec Philippe Etudiant de l&rsquo;Ecole des Mines.<\/p>\n<p><span style=\"text-decoration: underline\"><span style=\"color: #339966\">Le mat\u00e9riel:<\/span><\/span><\/p>\n<p>Un ballon de baudruche<\/p>\n<p>Un pull en laine<\/p>\n<p>Une ficelle<\/p>\n<p><span style=\"text-decoration: underline\"><span style=\"color: #339966\"> D\u00e9roulement:<\/span><\/span><\/p>\n<p>En premier, j&rsquo;ai gonfl\u00e9 le ballon.<\/p>\n<p>Je l&rsquo;ai attach\u00e9 \u00e0 une ficelle.<\/p>\n<p>Ensuite, je l&rsquo;ai frott\u00e9 contre le pull en laine 20 secondes environ.<\/p>\n<p>Je l&rsquo;ai pos\u00e9 d\u00e9licatement au plafond et il a tenu en l&rsquo;air.<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #339966\">Conclusion:<\/span> il est rest\u00e9 coll\u00e9 gr\u00e2ce \u00e0 l&rsquo;\u00e9lectricit\u00e9 statique.<\/p>\n<p>Ce ph\u00e9nom\u00e8ne se produit en frottant le ballon contre le pull en laine, ce qui attire certains \u00e9lectrons.<\/p>\n<p><span style=\"color: #339966\"> Elouan 10 ans<\/span><\/p>\n<p>Petite explication demand\u00e9e au \u00a0Professeur de Sciences Alain (merci): il s&rsquo;agit d&rsquo;un transfert d&rsquo;\u00e9lectrons entre le pull et le ballon. Le ballon s&rsquo;est charg\u00e9 n\u00e9gativement, on dit qu&rsquo;il s&rsquo;\u00e9lectrise.<\/p>\n<p>Lorsqu&rsquo;on approche le ballon \u00e9lectris\u00e9 du plafond cela induit l&rsquo;apparition de \u00a0charges oppos\u00e9es sur le plafond \u00e0 proximit\u00e9 du ballon. Le plafond attire le ballon.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jeudi 12 janvier L&rsquo;exp\u00e9rience d&rsquo;Elouan: \u00a0Atelier sciences avec Philippe Etudiant de l&rsquo;Ecole des Mines. Le mat\u00e9riel: Un ballon de baudruche Un pull en laine Une ficelle D\u00e9roulement: En premier, j&rsquo;ai gonfl\u00e9 le ballon. Je l&rsquo;ai attach\u00e9 \u00e0 une ficelle. Ensuite, je l&rsquo;ai frott\u00e9 contre le pull en laine 20 secondes environ. Je l&rsquo;ai pos\u00e9 d\u00e9licatement &hellip; <a href=\"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/2017\/01\/13\/electricite-statique-2\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Electricit\u00e9 statique<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":3980,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"h5ap_radio_sources":[],"footnotes":""},"categories":[6],"tags":[],"post_folder":[],"class_list":["post-1897","post","type-post","status-publish","format-standard","hentry","category-ateliers-sciences"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/posts\/1897","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/users\/3980"}],"replies":[{"embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/comments?post=1897"}],"version-history":[{"count":0,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/posts\/1897\/revisions"}],"wp:attachment":[{"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/media?parent=1897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/categories?post=1897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/tags?post=1897"},{"taxonomy":"post_folder","embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/post_folder?post=1897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}