Magnetic Forces

What is an electromagnet?

• The point on a magnet where where magnetic force is strongest.

• It is something that is always magnetic.

• It is an object that is magnetic without any human influence.

• It is a magnet that can be turned on and off with an electric current.

What is a natural magnet?

• The point on a magnet where where magnetic force is strongest.

• It is something that is always magnetic.

• It is an object that is magnetic without any human influence.

• It is a magnet that can be turned on and off with an electric current.

What is a magnetic pole?

• The point on a magnet where where magnetic force is strongest.

• It is something that is always magnetic.

• It is an object that is magnetic without any human influence.

• It is a magnet that can be turned on and off with an electric current.

What is permanent magnet?

• The point on a magnet where where magnetic force is strongest.

• It is something that is always magnetic.

• It is an object that is magnetic without any human influence.

• It is a magnet that can be turned on and off with an electric current.

Ben does an experiment with a data chart. He records his data in a chart.

Which question was Ben most likely answering during his investigation?

• How many steel or iron objects can a magnet pick up?

• How strong is the magnetic force of a permanent magnet?

• What causes a permanent magnet to lose its magnetism?

• What kinds of materials are attracted to magnets?

Tags

NGSS.MS-PS2-3

Choose the word that completes the sentence.

Ben uses the magnet to try to pick up a large paper clip. The paper clip is made with steel. The magnet will not pick up the paper clip. This means the paper clip is too _________.

• small

• heavy

Choose the word that completes the sentence.

Ben should move the magnet _____________ the paper clip.

• closer to

• farther from

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Nina has two different magnets.

Which problem can she solve using magnet X but not magnet Y?

• Small iron pieces need to be sorted from a mixture.

• The pull of the magnet on a piece of metal needs to be stronger.

• Steel objects need to be picked up from one location and dropped into a new location.

• The north pole of the magnet needs to attract the south pole of another magnet.

Tags

NGSS.3-PS2-3

NGSS.3-PS2-4

The picture shows the poles of magnets interacting. CHOOSE the pairs of magnets that will attract each other. You will choose two answers.

• A

• B

• C

• D

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Paper clips are made of steel wire. The picture shows paper clips around two different types of magnets. You will choose two (2) answers.

• A

• B

• C

• D

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5