Forces: Magnetism

What is magnetism?

• A force exerted by magnets to attract or repel certain materials

• A type of electricity

• A way to measure weight

• A color spectrum

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Which materials are most magnetic?

• Copper, zinc, and lead

• Wood, plastic, and glass

• Silver, gold, and aluminum

• Iron, nickel, and cobalt

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What happens when you try to push two north poles of magnets together?

• They attract each other

• They create electricity

• They repel each other

• Nothing happens

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What creates the force of magnetism?

• Aligned spinning of electrons

• Gravity

• Heat

• Pressure

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What is a magnetic field?

• A field where only magnets can grow

• The area around a magnet where its force can act

• A type of electric field

• A region around the Earth

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What are the ends of a magnet called?

• North pole and South pole

• East and West

• Top and Bottom

• Left and Right

What do opposite poles of a magnet do?

• Disappear

• Attract

• Nothing

• Repel

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What is one use of magnets in medicine?

• Healing broken bones

• MRI scanners

• Checking body temperature

• Increasing muscle strength

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What is special about maglev trains?

• They use magnets to hover above the track

• They are invisible

• They are silent

• They can fly

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What is the Earth's core made of?

• Water and ice

• Solid gold and silver

• Molten iron and nickel

• Rock and sand

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