Magnets Review

Why does a compass needle, point towards the north?

• The compass is a bar magnet.

• North is up.

• It deflects.

• It lines up with the Earth's magnetic field.

How is Earth's magnetic field similar to that of a magnet?

• It is hundreds of miles long.

• It has north and south poles.

• It is made in Earth's core.

• It is shaped like a horseshoe.

Which of the following statements is true about a bar magnet?

• Its magnetic field is strongest near its center.

• It is surrounded by a magnetic field.

• The north pole is stronger than the south pole.

• The south pole is stronger than the north pole.

Which is not a property of a magnet? 

• all magnets have two poles

• all magnets have a force of attraction or repulsion

• all magnets are surrounded by a magnetic field

• all magnets can be turned off

This substance is

• magnetized

• unmagnetized

• positively charged

• negatively charged

Tags

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A group of atoms that has all like poles pointing in the same direction are called

• magnetic forces

• magnetic fields

• magnetic domains

• magnetic poles

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Which type of magnet loses magnetism outside of a magnetic field?

• a strong magnet

• a temporary magnet

• a permanent magnet

• an electromagnet

What are the two magnetic forces?

• attraction

• equilibrium

• magnetic acceleration

• repulsion

Tags

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What happens if you break a magnet in half?

• One half will have a north pole only and one half will have a south pole only.

• Neither half will have a pole.

• Each half will be a new magnet, with both a north and south pole.

• Neither half will be able to attract or repel.

Tags

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Every magnet, regardless of its shape, has two...

• magnetic poles

• magnetic charges

• magnetic fields

• magnetic domains