introduction to magnets. which object(s) will be attracted to a magnet?
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Introduction to Magnets
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Which object(s) will be attracted to a magnet?
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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.
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• 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.
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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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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.
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When you bring two magnets close together, each magnet exerts a magnetic force on the other magnet.
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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