Magnets and Electromagnets Milestone Review

What is this?

• magnet
• electromagnet
• series circuit
• parallel circuit

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How do you make an electromagnet stronger?

• Add a motor and/or lightbulbs
• Reverse the poles of the magnet.

• remove the wire and/or batteries

• add more wire coils and/or batteries

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How are electromagnets different from magnets?

• they can be turned on/off

• their polarity can be reversed

• their strength can be changed

• all of the above

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Which of the following is not a non-magnetic materials?

• Glass

• Wood

• Nickel

• Plastic

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Which part the magnetic field is the strongest?

• At the polea

• further away from the magnet

• closer to the magnet

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When two magnets attract, they ______________

• push apart

• change color

• slide past each other

• pull together

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When two magnets repel, they ______________

• push apart

• change color

• slide past each other

• pull together

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The space around a magnet is called its ____________.

• electrical field

• magnetic field

• memory field

• test field

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Compasses always point in which direction?

• North

• South

• East

• West

Earth acts like a giant magnet because its center is made up MOSTLY of

• Granite

• Limestone

• Iron

• Copper