Magnetic Forces Mini Lesson

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

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

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-PS3-2

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.