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Magnetism
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magnets are attracted to
nickel, cobalt, iron
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repel
push away from each other
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What is one way to make an electromagnet stronger?
increase the source (use a larger battery)
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The north end of a magnet will be attracted to
the south end of another magnet
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what does permanent mean
lasts for a long time or forever
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attract
pull closer together
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what causes an electromagnet to work
electric current
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pole
two regions on a magnet where magnetic forces are the strongest. There is a north pole and a south pole
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the south end of a magnet will be attracted to
the north end of another magnet
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temporary magnet
a magnet made from a material that easily loses its magnetism
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Where is the strength of a bar magnet the greatest?
at the poles
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what does temporary mean?
only lasts a short time
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What would happen if you broke a bar magnet in two
two magnets, both with a north and south pole
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magnetic field
the area around a magnet where it can push or pull
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magnet
any object that can exert magnetic force
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permanent magnet
magnet designed to remain magnetized for a long time or forever
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