{"id":1178,"date":"2022-05-05T15:18:17","date_gmt":"2022-06-24T16:49:15","guid":{"rendered":"https:\/\/experiments.school\/?post_type=product&p=1178"},"modified":"2022-07-01T10:24:59","modified_gmt":"2022-07-01T08:24:59","slug":"053-inertie-de-la-masse","status":"publish","type":"product","link":"https:\/\/experiments.school\/fr\/produkt\/053-inertie-de-la-masse\/","title":{"rendered":"053 – Inertie de la masse"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"

Cons\u00e9quences<\/span> de <\/span>l’inertie<\/span> de <\/span>masse<\/span><\/strong><\/h2>\n

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

Inertie, couple, friction statique, conservation de l’impulsion\u00a0<\/span>\u00a0<\/span><\/p>\n[video width=\"1920\" height=\"1080\" mp4=\"https:\/\/experiments.school\/wp-content\/uploads\/2022\/05\/053-video-1.mp4\"][\/video]\n

Mat\u00e9riel:\u00a0<\/span>\u00a0<\/span><\/h2>\n

petite bo\u00eete (par ex. bo\u00eete d’allumettes)\u00a0<\/span>\u00a0<\/span><\/p>\n

feuille de papier\u00a0<\/span><\/p>\n

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

Placer la bo\u00eete avec la plus petite surface lat\u00e9rale sur le bord du papier. Cela permet de r\u00e9aliser trois exp\u00e9rimentations diff\u00e9rentes :\u00a0<\/span>\u00a0<\/span><\/p>\n

    \n
  1. Tirer sur le papier \u00e0 une vitesse mod\u00e9r\u00e9e, mais soudainement.\u00a0<\/span>\u00a0<\/span><\/li>\n
  2. Tirer sur le papier en acc\u00e9l\u00e9rant lentement. Puis s’arr\u00eater brusquement.\u00a0<\/span>\u00a0<\/span><\/li>\n
  3. Tirer brusquement le papier sous la bo\u00eete.\u00a0<\/span><\/li>\n<\/ol>\n

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

    La bo\u00eete ….\u00a0<\/span>\u00a0<\/span><\/p>\n

      \n
    1. \u00a0\u00a0\u00a0 … tombe en arri\u00e8re\u00a0<\/span>\u00a0<\/span><\/li>\n
    2. \u00a0\u00a0\u00a0 … tombe en avant\u00a0<\/span>\u00a0<\/span><\/li>\n
    3. \u00a0\u00a0\u00a0 … reste debout\u00a0<\/span>\u00a0<\/span><\/li>\n<\/ol>\n

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

      Les diff\u00e9rentes r\u00e9actions de la bo\u00eete aux diff\u00e9rents mouvements du support d\u00e9montrent l’inertie de la masse de la bo\u00eete, son adh\u00e9rence au support et le couple de rotation g\u00e9n\u00e9r\u00e9 par l’\u00e9loignement du support.\u00a0<\/span>\u00a0<\/span><\/p>\n

      Conseils:\u00a0<\/span>\u00a0<\/span><\/h2>\n
        \n
      • plier l\u00e9g\u00e8rement le papier vers le haut \u00e0 l’extr\u00e9mit\u00e9 oppos\u00e9e afin de pouvoir le saisir plus facilement.\u00a0<\/span>\u00a0<\/span><\/li>\n
      • La bo\u00eete peut \u00e9ventuellement \u00eatre lest\u00e9e en la remplissant de sable.<\/span>\u00a0<\/span><\/li>\n<\/ul>\n","protected":false},"featured_media":1480,"template":"","meta":[],"product_brand":[],"product_cat":[906,907,913,925,699],"product_tag":[],"class_list":{"0":"post-1178","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-1-masse-poids-densite-centre-de-gravite","7":"product_cat-2-force-equilibre-des-forces","8":"product_cat-4-vitesse-acceleration-inertie","9":"product_cat-8-impulsion-conservation-de-limpulsion","10":"product_cat-a-mecanique","11":"","12":"woocommerce-text-align-left","13":"woocommerce-image-align-center","15":"first","16":"instock","17":"shipping-taxable","18":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product\/1178","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\/1480"}],"wp:attachment":[{"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/media?parent=1178"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product_brand?post=1178"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product_cat?post=1178"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product_tag?post=1178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}