Magnetic Force Review

What types of materials attract a magnet?

• materials that contain iron.

• materials that are shiny.

• materials containing any type of metal

• materials the contain another magnet

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The attraction or repulsion between magnets is

• magnetism.

• magnetic force.

• magnetic field.

• magnetic poles.

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A paper clip is made into a temporary magnet using a bar magnet. The paper clip will be a magnet

• as long as contact exists.

• as long as current is flowing.

• permanently over time.

• only in the presence of another paper clip.

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The location on a magnet where the magnetic force is the strongest is known as

• magnetic poles.

• magnetic field.

• magnetism.

• compass.

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A magnet always exerts a(n) _______ on an object that is not itself a magnet.

• pull

• push

• gravitational field

• electric field.

On magnets, like poles _____ each other and opposite poles ______.

• repel; attract

• attract; repel

• pull; push

• interact with, do not interact with

Tags

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When particles in an object line up with the magnetic field around them, it becomes a _______ magnet.

• temporary

• permanent

• bar

• horseshoe

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As you apply force to separate two opposite poles; the potential energy of the system

• increases.

• decreases.

• remains the same.

• none of the choices are correct.

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In a single magnetic field, when the field lines are closer together, the field is ___________ when they are far apart.

• stronger than

• weaker than

• the same as

• more

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The source of magnetic energy for a magnet is the

• magnetic field.

• magnetic poles.

• Earth's core.

• electric current.

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