Magnets

What will happen when unlike poles of magnets are brought near each other?

• They will repel each other.

• They will attract each other.

• They will stay at the same position.

A freely suspended magnet will always point in a __________ direction.

• East - West

• East - North

• North - South

• West - South

A magnet is the strongest at its _________.

• sides

• surface

• poles

• middle

What is one way to increase the strength of a magnetized iron nail using the stroke method?

• Increase the number of batteries

• Increase the number of coils of wires around the iron nail

• Increase the number of strokes of the magnet on the iron nail

• Change the iron strip to a steel strip

What are some ways to increase the strength of a magnetized iron nail using the electricity method? (There is more than one answer.)

• Increase the number of batteries

• Increase the number of coils of wire around the iron nail

• Increase the number of strokes of magnet on the iron nail

Which of the following cannot be attracted to a magnet?

• iron nail

• cooper wire

• steel paper clip

• iron rod

What will happen to the number of paper clips attracted if the iron nail is replaced with a copper nail?

• There will be no paper clips attracted

• The number of paper clips will increase.

• The number of paper clips will stay the same.

• The number of paper clips will decrease.

Louis had a bar magnet with its north pole, N, marked as shown in the picture.

Which of the following correctly shows what pole X is?

• N - pole

• S - pole

Which of the following words means to push away when talking about magnets?

• repel

• attract

• pull

Which of the following is nonmagnetic?

• iron

• nickel

• steel

• glass