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M AGNETS By Jessica. W HAT IS THE HISTORY OF MAGNETS ? In ancient times cave men knew of a rock that such force that could pull other rocks out of the.

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Presentation on theme: "M AGNETS By Jessica. W HAT IS THE HISTORY OF MAGNETS ? In ancient times cave men knew of a rock that such force that could pull other rocks out of the."— Presentation transcript:

1 M AGNETS By Jessica

2 W HAT IS THE HISTORY OF MAGNETS ? In ancient times cave men knew of a rock that such force that could pull other rocks out of the ground. The rock was called lodestones.

3 W HAT ARE MAGNET NEEDLES ? Magnet needles have a special property that connected them with astronomy.

4 H OW ARE ELECTRICITY AND MAGNETS CONNECTED ? Alike electricity and gravity magnetism is a fundament force. Magnets and electricity are close related are two expressions of a single force.

5 I S THERE A ANOTHER KIND OF MAGNET ? Yes. There is another kind of magnet. It is called a earths magnet field.


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