Electric and Magnetic Forces Review

The names of the two ends of a magnet are called

• North Pole

• South Pole

• Positive

• Negative

What surrounds the magnet that can interact with other magnets?

• Magnetic field

• Electric field

• Magnetic force

• Magnetic line

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Select in the images where the magnetic field would be strongest.

• 
• 
• 
• 

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When two similar poles of two magnets come near each other, the magnets will

• attract

• repel

• do nothin

• explode

When two opposite poles of two magnets come near each other, the magnets will

• attract

• repel

• do nothing

• explode

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A north pole of one magnet is brought near the south pole of another magnet. The magnets will

• attract

• repel

• do nothing

• explode

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True or false: magnetic fields can interact over a distance.

• True

• False

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You can increase the strength of an electromagnet by

• increasing the electricity

• decreasing the electricity

• increasing the number of coils

• decreasing the number of coils

To reverse the magnetic field in an electromagnet you should

• turn it upside down.

• you cannot reverse the magnetic field.

• turn it around.

• hook up the power backwards.

A magnetic field in an electromagnet is created by

• magic.

• electricity flowing through a wire.

• electricity flowing through a coil.

• wire coiled together.