Chapter 4. Electricity and Magnetism
Making a Magnet (or Recharging a Magnet)
Purpose: If you learn how to make magnets you will not only be able to make magnets without cost, but you will learn something about the nature of magnetism.
Materials: Strong bar magnet1 and some things made of iron, steel, brass, pot metal, copper, and other metals.
What to Do: Stroke the object to be magnetized with a bar magnet. Try to imagine the object to be magnetized as being made up of many small compasses. You want to line up all the compasses so the needles point in the same direction. You will need to stroke the object many times.
Can You Work Like ...
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