Magnetic Forces

The magnetic domains of a permanent magnet are arranged randomly.

• True

• False

A magnetic force becomes weaker as magnets ________.

• repel

• attract

• move together

• move apart

Tags

NGSS.MS-PS2-3

A compass needle acts as a(n) _______.

• axis

• magnet

• domain

• system

Tags

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

• ts 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 repel 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

A student holds a magnet 1 m from a paper clip and sees no evidence of a force acting between the two. When the student brings the magnet 1 cm away from the paper clip, the paper clip begins to slide toward the magnet. Which statement best explains these results?

• The material in the paper clip wasn’t a magnetic material until the magnet was moved closer.

• The magnet did not have a magnetic field until it was close to the paper clip.

• The paper clip repelled the magnet at the farther distance.

• The magnetic field of the magnet was too weak to move the paper clip at a farther distance.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Because of the magnetic field, magnets do not have to touch to affect each other. _________

• True

• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A compass needle’s magnetic north pole points toward which of the following?

• Earth's magnetic south pole

• Earth's magnetic north pole

• Earth's magnetic axis

• Earth's rotational axis

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The location of the strongest magnetic field is the ____.

• A. center of the magnet

• magnetic domains

• magnetic fields 

• magnetic poles

Tags

NGSS.MS-PS2-3

If similar poles of two magnets  are brought near each other, the magnets _______

• align

• attract

• repel

• do not move

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The region around a magnet where the magnetic forces act is the _________.

• electromagnetic pole

• magnetic domain

• magnetic field

• magnetic pole

Tags

NGSS.MS-PS2-5