Magnetism

Which of the following will not attract or repel each other?

• two magnets 
• a magnet and a stationary charge
• a magnet and a current-carrying wire
• two current-carrying wires 

Generators can produce only alternating current.

• True
• False

A magnet moving back and forth in the center of a coil of wire produces a direct current in the wire.

• True
• False

The strongest part of a magnet is...

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

Magnets have a north and a south ___________

• shape
• color
• pole
• region

What kind of magnet can be turned on and off?

• refridgerator magnet
• electromagnet
• magnetite
• iron

Which of the following is NOT part of an electromagnet?

• Wire
• Iron
• Toothpick
• Power source

Surrounding every magnet is a __________  __________.

• magnetic field
• electrical current
• another magnet

How many poles does a magnet have?

• 1
• 2
• 3
• 4

Magnets that are arranged like this will _______. 

• move away from each other (repel)
• move towards each other (attract)