When the magnet below the wooden table in figure 14 is moved, the footballer above is made to move. If you tried to play this game on a table with a steel or iron top, moving the magnet would have no effect on the footballer. Magnetism is able to pass through non-magnetic materials such as wood, but cannot pass through magnetic materials such as iron or steel. Magnetic materials are often used to shield objects such as sensitive electrical circuits from stray magnetic fields.
No comments:
Post a Comment