GP2 Lesson 4.1 FA

If you place the North pole of a magnet next to the South pole of another magnet, they will:

• Attract
• Repel
• Do nothing
• Shatter

The strongest part of a magnet is...

• the bars.
• the force field.
• the poles. 
• the middle.

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).

If you cut a magnet in half, what happens to the poles?

• One half gets the North Pole, the other half gets the South Pole
• Both halves get only a North Pole
• Both halves get only a South Pole
• Both halves get a North pole and a South Pole

On Earth, where is Magnetic North approximately located?

• The Equator
• The North Pole
• The South Pole
• The Philippines

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

Which drawing is correct?

• 1

• 2

• 3

• 4

These magnetic domains are:

• strongly magnetized

• slightly magnetized

• unmagnetized

Amy used a magnet to hold one piece of paper on the refrigerator. Later, she tried to use the same magnet to hold a stack of four pieces of paper, and the magnet wouldn't stick to the fridge. Why did this happen?

• The magnet needs glue
• The magnet couldn't hold due to the thickness of the paper
• Paper repels magnets
• A magnet isn't attracted to the refrigerator.

What is our best evidence that Earth has a magnetic field?

• All things fall toward Earth's center
• A compass needle lines up with it
• Winds blow from east to west
• Earth's oceans all have currents