Magnetic Domains

Magnets are made of tiny sections of magnetic fields that are aligned to produce a larger magnetic field. These are called _____.

• magnetic domains

• magnetic fields

• magnetic sections

• electromagnets

Why does a compass needle point north?

• because north is up

• it lines up with Earth's magnetic field

• because of magic

• the compass is programmed to do so

You know this substance is magnetized because

• all the domains have right angles
• the arrows are drawn in red
• the domains are aligned
• the domains are random

Which of these images illustrates a unmagnetized material?

• 
• 

Tags

NGSS.MS-PS2-3

How can a material become magnetized?

• Placing the object into a strong magnetic field

• Heating the object

• Arrange the magnetic domains randomly

Tags

NGSS.MS-PS2-3

A permanent magnet

• has no magnetic domains until a magnet is near it
• has magnetic domains aligned only when another magnet is near it
• has magnetic domains aligned all the time
• has no magnetic domains

A temporary magnet

• has no magnetic domains until a magnet is near it
• has magnetic domains aligned only when another magnet is near it
• has magnetic domains aligned all the time
• has no magnetic domains

What happens when you split a magnet in half?

• It becomes twice as strong

• You end up with two smaller magnets

• You end up with a North Pole magnet and a South Pole Magnet (as long as you split it perfectly in half)

• Your magnet loses all of it's magnetism (it leaks out of the break)

What happens when a magnet is broken in half?

• Two magnets are created

• The magnet becomes weaker

• The magnet becomes stronger

• The magnet loses its magnetism