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Introduction to Magnets. Which object(s) will be attracted to a magnet?

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Presentation on theme: "Introduction to Magnets. Which object(s) will be attracted to a magnet?"— Presentation transcript:

1 Introduction to Magnets

2 Which object(s) will be attracted to a magnet?

3 What’s a magnet? A magnet is any material that attracts iron or things made from iron. Magnets exert forces on each other and are surrounded by a magnetic field.

4 The magnetic effects are not the same throughout a magnet. The strongest effects are near the ends of the bar magnet. Each end of the magnet is a magnetic pole. Magnetic poles are points on a magnet that have opposite magnetic qualities.

5 Magnets have two poles: NORTH AND SOUTH The opposite poles of magnets will attract each other, while the like poles will repel.

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8 North and South Suppose you hang a magnet by a string so that the magnet can spin, you will see that one end of the magnet always ends up pointing to the north.

9 When you bring two magnets close together, each magnet exerts a magnetic force on the other magnet.

10 Magnet Video

11 Magnetic Fields EQ: How does the Earth’s magnetic field compare to that of the fields that surround a magnet and an electromagnet? SPI 0807.12.3


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