Forces and Fields

What is an object that attracts, or pulls on, materials that contain iron?

• magnet

• force

• field

• poles

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

How do magnets interact with other magnets?

• opposite charges attract

• opposite charges repel

• like charges attract

• like charges repel

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is the push or pull exerted by magnets?

• magnetic force

• electric force

• gravitational force

• electromagnetic force

Tags

NGSS.MS-PS2-3

Which of the following statements is true?

• Magnets can have two north poles.

• Magnets can have two south poles.

• Magnets don't always have poles.

• All magnets have north and south poles.

Why are most materials not magnetic?

• The poles are oriented in all directions.

• The poles are lined up.

• The poles are backwards.

• The poles are upside down.

Tags

NGSS.MS-PS2-3

What are areas where like poles of the atoms point in the same direction?

• gravitational domains

• electric domains

• magnetic domains

• ferromagnetic domains

What are materials that form magnetic domains called?

• domain magnets

• ferromagnetic materials

• domain materials

• magnetic ferros

Which of the following are ferromagnetic materials?

• iron

• wood

• nickel

• cobalt

Tags

NGSS.MS-PS2-3

We can see magnetic domains without a microscope.

• true

• false

In a small iron particle made of 200 atoms, the north poles of 100 atoms are pointed right and the north poles of another 100 atoms are pointed left. Which statement describes the net magnetic force exerted by the iron particle?

• The net magnetic force is about zero.

• The net magnetic force is less than zero.

• The net magnetic force is 100 times stronger as the force of the atoms.

• The net magnetic force is 200 times as strong as the force of the atoms.

Tags

NGSS.MS-PS2-3