magnetic field

Magnetic field lines are closet together at the __________.

• poles
• lines

Tags

NGSS.MS-PS2-3

Magnetic field lines always cross.

• True
• False

Are the magnetic field lines in the picture correct?

• Yes, because they point from north to south.

• No, because they point from north to south (they're supposed to go the other way).

• Yes, because the North pole is on the left in all pictures.

• No, because the North pole is on the left in all pictures (it's supposed to be on the right).

Tags

NGSS.MS-PS2-3

Why does a compass needle point north?

• The compass is a bar magnet
• Because north is up
• Because it's magic
• It lines up with the Earth's magnetic field

Tags

NGSS.MS-PS2-5

Looking at the field lines in this picture, these two magnets are ________

• Attracting

• Repelling

• Attracting and Repelling

• Doing nothing

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A north pole and a south pole will attract.

• True
• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Select the diagram with the weakest magnetic field

• 
• 
• 

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Explain why the magnets are 'floating' above each other.

• The magnets are attracting each other as their unlike poles are facing each other.

• The magnets are repelling each other as their like poles are facing each other.

• Nothing happened. The magnets are weak and stayed in their position.

What happens when two north poles of a magnet are placed together?

• they repel
• they attract
• they cancel each other out
• the strength of the magnet is doubled

Tags

NGSS.MS-PS2-3

Choose 2 materials that cannot be attracted by a magnet. Then click submit (bottom right button)

• iron

• copper

• steel

• ceramic