Magnetic Forces

The magnetic domains of a permanent magnet are arranged randomly.

• True

• False

Because of the magnetic field, magnets don't have to touch to affect each other.

• False

• True

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

When an object that is made of magnetic material but is not a magnet comes in contact with a magnet _____.

• Its magnetic domains fall into alignment and it begins to repel other objects made of magnetic material

• its magnetic domains fall out of alignment and it begins to repel other objects made of magnetic material

• Its magnetic domains fall into alignment and it begins to attract other objects made of magnetic material

• its magnetic domains fall out of alignment and it begins to attract other objects made of magnetic material

Tags

NGSS.MS-PS2-5

How can you make an item that is made of magnetic material become a permanent magnet instead of a temporary magnet?

• You can heat it while it is being influenced by a magnetic field.

• You can heat it and then let it cool it in a very strong magnetic field.

• You can leave it in the magnetic field of an actual magnet for a long time.

• You can do any of the above.

Which part of the magnet has the strongest magnetic field?

• magnetic domains

• center of the magnet

• magnetic fields

• magnetic poles

What would happen to the magnetic field of a magnet, if the strength of the magnet increased?

• The magnetic field would decrease and will not be able to attract objects from a distance.

• The magnetic field will increase and will be able to attract objects from farther away.

• There would be no change to the magnetic field.

• The magnetic field would break.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

If you put two of the SAME poles closer together, what happens to the magnetic potential energy?

• The magnetic potential energy will in crease.

• The magnetic potential energy will decrease.

• There will be no change to the magnetic potential energy.

• The magnets attract.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS3-2

If you move two opposite poles are moved together, what happens to the magnetic potential energy?

• The magnetic potential energy will decrease.

• The magnetic potential energy will increase.

• Nothing will happen to the magnetic potential energy.

• The magnets will repel.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What would atoms in nonmagnetic materials look like?

• They would be organized into domains.

• Atoms would all face the same direction

• The atoms would be organized in domains and the domains would be aligned.

• Atoms would NOT be in domains and they would face in different directions.

Tags

NGSS.MS-PS2-3

What is one way to make a temporary magnet?

• There is no such thing as a temporary magnet.

• By putting two magnets close to each other.

• By rubbing an iron nail on a magnet.

• By putting a nonmagnetic material near a strong magnetic field.