magnetism review game. what do you get if you break a magnet in 2 pieces?
TRANSCRIPT
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Magnetism Review Game
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What do you get if you break a magnet in 2 pieces?
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2 magnets – each has a N and S Pole
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The region around a magnet where the magnetic forces act
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Magnetic field
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Give an example of a material that is NOT magnetic
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Glass, wood, rubber, plastic
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A magnetic field is strongest at which point on the magnet?
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At the poles
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The magnetic field is described by magnetic lines of
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force
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Magnets that are easy to magnetize but only stay magnetic for a short time
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Temporary Magnets
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Magnets found in the Earth that will stay magnetic forever
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Natural Magnets
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What is the name of the rock that is a natural magnet
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Magnetite/Lodestone
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What type of magnet is A wire carrying current wrapped around a metal core?
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electromagnet
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Materials that are more difficult to magnetize but tend to stay magnetized longer are called
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Permanent magnet
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The ends of a magnet are called
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poles
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Like poles _______, opposite poles _______
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Repel, attract
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A compass needle responds to a magnetic field because the compass needle is a _______
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magnet
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What are 4 ways you can demagnetize a magnet?
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Drop it, hit it, heat it up, put it in an opposite magnetic field
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What are 2 ways to make an electromagnet stronger?
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Increase the current in the wire, increase the number of loops in the solenoid
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A magnet is any material that attracts _____ or materials containing _____.
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Iron
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The interaction between electricity and magnetism is
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electromagnetism
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The coil of wire in an electromagnet is called a
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solenoid
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Caused by solar winds hitting the Earth’s magnetic Field
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Aurora Borealis