{"id":1312,"date":"2022-05-05T15:06:43","date_gmt":"2022-06-25T11:19:24","guid":{"rendered":"https:\/\/experiments.school\/?post_type=product&p=1312"},"modified":"2022-07-01T10:37:19","modified_gmt":"2022-07-01T08:37:19","slug":"033-separation-electrostatique-des-materiaux","status":"publish","type":"product","link":"https:\/\/experiments.school\/fr\/produkt\/033-separation-electrostatique-des-materiaux\/","title":{"rendered":"033 – S\u00e9paration \u00e9lectrostatique des mat\u00e9riaux"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"

S\u00e9paration du sel et du poivre <\/strong>\u00a0<\/span><\/h2>\n

Introduction \u00e0 : <\/span>\u00a0<\/span><\/h2>\n

Tribo\u00e9lectricit\u00e9, charge, transfert de charge, polarisation, force \u00e9lectrostatique <\/span>\u00a0<\/span><\/p>\n

https:\/\/experiments.school\/wp-content\/uploads\/2022\/05\/033-video.mp4<\/p>\n

Mat\u00e9riel: <\/span>\u00a0<\/span><\/h2>\n
    \n
  1. \u00a0Cuill\u00e8re en plastique \/ r\u00e8gle en plastique \/ ballon de baudruche <\/span><\/li>\n
  2. M\u00e9lange de sel et de poivre <\/span><\/li>\n
  3. Poivre <\/span>\u00a0<\/span><\/li>\n<\/ol>\n

    + Tissu de laine \/ fourrure \u00e0 frotter (pour la charge \u00e9lectrostatique) <\/span>\u00a0<\/span><\/p>\n

    Montage:<\/span><\/h2>\n
      \n
    • \u00a0\u00a0\u00a0 pr\u00e9parer un m\u00e9lange de sel fin et de poivre finement moulu <\/span>\u00a0<\/span><\/li>\n
    • \u00a0\u00a0\u00a0 charger \u00e9lectrostatiquement la cuill\u00e8re en plastique en la frottant.\u00a0 <\/span>
      \n<\/span><\/li>\n<\/ul>\n

      Ex\u00e9cution: <\/span>\u00a0<\/span><\/h2>\n

      passer la cuill\u00e8re sur le m\u00e9lange <\/span>\u00a0<\/span><\/p>\n

      Observation : <\/span>\u00a0<\/span><\/h2>\n

      le poivre est attir\u00e9 par la cuill\u00e8re et y reste coll\u00e9, le sel reste en place <\/span>\u00a0<\/span><\/p>\n

      Explication: <\/span>\u00a0<\/span><\/h2>\n
        \n
      • \u00a0 les cha\u00eenes carbone-hydrog\u00e8ne dans le poivre sont polaris\u00e9es dans le champ \u00e9lectrique de la cuill\u00e8re, de m\u00eame que les charges dans le cristal de sel NaCl <\/span>\u00a0<\/span><\/li>\n
      • \u00a0 dans le champ inhomog\u00e8ne de la cuill\u00e8re, une attraction \u00e9lectrostatique se produit sur les deux <\/span>\u00a0<\/span><\/li>\n
      • \u00a0 les cristaux de sel sont beaucoup plus lourds et ne sont donc pas soulev\u00e9s aussi facilement que le poivre <\/span>\u00a0<\/span><\/li>\n<\/ul>\n","protected":false},"featured_media":1313,"template":"","meta":[],"product_brand":[],"product_cat":[973,883,893,896],"product_tag":[],"class_list":{"0":"post-1312","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-1-electrostatique-charge","7":"product_cat-b-electricite-fr","8":"product_cat-g-tours-de-magie-fr","9":"product_cat-j-phsik-dans-la-cuisine","10":"","11":"woocommerce-text-align-left","12":"woocommerce-image-align-center","14":"first","15":"instock","16":"shipping-taxable","17":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product\/1312","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/media\/1313"}],"wp:attachment":[{"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/media?parent=1312"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product_brand?post=1312"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product_cat?post=1312"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product_tag?post=1312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}