{"id":1320,"date":"2022-05-05T15:08:09","date_gmt":"2022-06-24T17:43:21","guid":{"rendered":"https:\/\/experiments.school\/?post_type=product&p=1320"},"modified":"2022-07-01T10:36:05","modified_gmt":"2022-07-01T08:36:05","slug":"011-deviation-electrostatique","status":"publish","type":"product","link":"https:\/\/experiments.school\/fr\/produkt\/011-deviation-electrostatique\/","title":{"rendered":"011 – D\u00e9viation \u00e9lectrostatique"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"

Courbure<\/span> d’un<\/span> jet<\/span> d’eau<\/span> par des <\/span>forces<\/span> \u00e9lectrostatiques<\/span>\u00a0<\/span><\/span>\u00a0<\/span><\/strong><\/h2>\n

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

Dip\u00f4le \u00e9lectrique, force sur la charge \u00e9lectrique, champ \u00e9lectrique, forces \u00e9lectrostatiques\u00a0<\/span>\u00a0<\/span><\/p>\n

https:\/\/experiments.school\/wp-content\/uploads\/2022\/05\/011-video-Marina.mp4<\/p>\n

Mat\u00e9riel:\u00a0<\/span>\u00a0<\/span><\/h2>\n
    \n
  • Robinet avec jet d’eau fin\u00a0<\/span><\/li>\n
  • peigne \/ cuill\u00e8re en plastique \/ ballon de baudruche\u00a0<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

    + Mat\u00e9riel pour frotter (tissu de laine, fourrure)\u00a0<\/span><\/p>\n

    construction:\u00a0<\/span>\u00a0<\/span><\/h2>\n
      \n
    • charger \u00e9lectrostatiquement la cuill\u00e8re en la frottant vigoureusement\u00a0<\/span>\u00a0<\/span><\/li>\n
    • cr\u00e9er un mince jet d’eau\u00a0<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

      ex\u00e9cution:<\/span><\/h2>\n
        \n
      • tenir la cuill\u00e8re \u00e0 proximit\u00e9 du jet d’eau\u00a0<\/span><\/li>\n
      • placer la cuill\u00e8re dans le jet d’eau\u00a0<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

        observation:\u00a0<\/span>\u00a0<\/span><\/h2>\n
          \n
        • le jet d’eau se courbe en direction de la cuill\u00e8re\u00a0<\/span>\u00a0<\/span><\/li>\n
        • si l’eau entre en contact avec la cuill\u00e8re, la courbure diminue\u00a0<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

          Conseils:<\/span><\/h2>\n

          les cheveux secs fra\u00eechement lav\u00e9s sont \u00e9galement un bon mat\u00e9riau pour frotter.\u00a0<\/span>\u00a0<\/span><\/p>\n

          Explication:\u00a0<\/span>\u00a0<\/span><\/h2>\n
            \n
          • Les mol\u00e9cules d’eau poss\u00e8dent un moment dipolaire \u00e9lectrique permanent. Dans le champ \u00e9lectrique de la cuill\u00e8re charg\u00e9e, les mol\u00e9cules du jet d’eau s’orientent dans le sens du champ et subissent des forces d’attraction \u00e9lectrostatiques dans ce champ \u00e9lectrique inhomog\u00e8ne.\u00a0<\/span>\u00a0<\/span>\u00a0<\/span><\/li>\n
          • Au contact de l’eau, les charges \u00e9lectriques s’\u00e9chappent de la cuill\u00e8re.\u00a0<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

            Potentiel didactique: <\/span>\u00a0<\/span><\/h2>\n

            d\u00e9monstration simple des forces \u00e9lectrostatiques<\/span>\u00a0<\/span><\/p>\n","protected":false},"featured_media":1321,"template":"","meta":[],"product_brand":[],"product_cat":[973,883,893,896],"product_tag":[],"class_list":{"0":"post-1320","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\/1320","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\/1321"}],"wp:attachment":[{"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/media?parent=1320"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product_brand?post=1320"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product_cat?post=1320"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product_tag?post=1320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}