MagnetismReview

Where is the force of a magnet strongest?

• at the poles of the magnet

• in the middle of the magnet

• far from the magnet

When all the magnetic fields of the magnetic domains align in the ______ direction, a material becomes magnetic.

• opposite

• same

What is a magnetic domain?

• a region in a magnetic material where the magnetic fields of the atoms all point in the same direction

• a region in a magnetic material where the magnetic fields of the atoms all point in different directions

If two magnets have their north poles facing each other, what will happen?

• They will attract each other.

• They will move.

• They will explode.

• They will repel each other.

What does the strength of a magnetic field depend on?

• how close an object is to the magnet

• the size of the magnet

• what the magnet is made of

• all of the above

If the opposite ends of two magnets were to face each other, what would the magnets do?

• repel

• drift

• attract

• explode

All magnets have _____.

• two north poles

• one north pole and one south pole

• two positive poles

• one top pole and one bottom pole

Magnetic field lines can cross each other.

• true

• false

Which metal is NOT magnetic?

• copper

• iron

• cobalt

• nickel

Why are paper clips attracted to magnets?

• They contain aluminum.

• They contain iron.

• They contain tin.

• They contain silver.