{"id":1282,"date":"2022-05-05T11:51:52","date_gmt":"2022-06-10T15:30:26","guid":{"rendered":"https:\/\/experiments.school\/?post_type=product&p=1282"},"modified":"2022-07-01T10:40:41","modified_gmt":"2022-07-01T08:40:41","slug":"020-magnetization","status":"publish","type":"product","link":"https:\/\/experiments.school\/en\/product\/020-magnetization\/","title":{"rendered":"020 – Magnetization"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"

Introduction to:<\/span><\/b>\u00a0<\/span><\/h2>\n

Magnetization by means of permanent magnet, ferromagnetism, magnetic needle, compass, Earth’s magnetic field, north and south pole<\/span>\u00a0<\/span><\/p>\n[video width=\"1920\" height=\"1080\" mp4=\"https:\/\/experiments.school\/wp-content\/uploads\/2022\/05\/020-video.mp4\"][\/video]\n

Material:<\/h2>\n
    \n
  • Permanent magnet (e.g. bar magnet, as strong as possible)<\/span>\u00a0<\/span><\/li>\n
  • Razor blade with a marking (e.g. red dot)<\/span>\u00a0<\/span><\/li>\n
  • Bowl with water<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

    \u00a0<\/span>Material (alternative):<\/h2>\n
      \n
    • needle (e.g. pin) (1)
      \n<\/span><\/li>\n
    • cork \/ styrofoam \/ wooden discs (2)<\/span>\u00a0<\/span><\/li>\n
    • Permanent magnet (e.g. bar magnet, as strong as possible)<\/span>\u00a0<\/span><\/li>\n
    • Bowl with water<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

      Construction and implementation:<\/h2>\n
        \n
      • Run one pole of the permanent magnet over the razor blade several times in the same direction, preferably over the top and the bottom.<\/span>\u00a0<\/span><\/li>\n
      • Carefully place the razor blade on the surface of the water.<\/span>\u00a0<\/span><\/li>\n
      • It always returns to the north-south direction, even if you turn it.<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

        Explanation:<\/h2>\n
          \n
        • By running the permanent magnet over the razor blade, the magnetic domains in the iron align. <\/span><\/li>\n
        • This turns the razor blade itself into a magnet.<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

          Didactic potential:<\/h2>\n
            \n
          • A nice brain teaser is to figure out the orientation of the razor blade. Do not forget that there is a magnetic south pole at the geographic north pole of the Earth.<\/span>\u00a0<\/span><\/li>\n
          • The experiment consolidates the model of the elementary magnets in iron.<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

            Tips:\u00a0\u00a0<\/span>\u00a0<\/span><\/h2>\n
              \n
            • The magnetisation can be reversed by strong vibration\/shock<\/span>\u00a0<\/span><\/li>\n
            • Caution: Move the permanent magnet far away from the bowl to prevent interference with the magnetic field of the Earth<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

              Tips for alternative material:\u00a0\u00a0<\/span><\/h2>\n
                \n
              • Before attaching the needle to the cork disc, test whether it is really magnetized (for example, hold it against a needle that has not yet been magnetized).<\/span>\u00a0<\/span><\/li>\n
              • Modelling clay works well for attaching the needle, glue is also possible<\/span>\u00a0<\/span><\/li>\n<\/ul>\n","protected":false},"featured_media":1283,"template":"","meta":[],"product_brand":[],"product_cat":[987,874,880],"product_tag":[],"class_list":{"0":"post-1282","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-6-magnetism-electromagnetism","7":"product_cat-b-electricity","8":"product_cat-g-magic-tricks-en","9":"","10":"woocommerce-text-align-left","11":"woocommerce-image-align-center","13":"first","14":"instock","15":"shipping-taxable","16":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product\/1282","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/media\/1283"}],"wp:attachment":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/media?parent=1282"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product_brand?post=1282"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product_cat?post=1282"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product_tag?post=1282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}