Magnetic Fields Review (Chapter 3)

The force a magnet exerts on another magnet, on iron or a similar metal, or on moving charges is

• an electric force

• a magnetic force

• proportional to the charge of the object

• proportional to the size of the magnet

If you cut a bar magnet in half...

• it becomes unmagnetized

• contains 1 magnetic pole

• is only temporarily magnetized

• becomes two smaller, complete bar magnets

Which of the following statements describes the interaction between magnetic poles?

• Like poles repel each other, and opposite poles attract each other

• Opposite poles repel each other

• Like poles attract each other, and opposite poles repel each other

• Like poles attract each other

Magnets are made of

• iron and wood

• steel and iron

• wood and steel

• copper, iron, steel

How many poles does a magnet have?

• 4

• 2

• 1

• depends on the magnet

What do we call the poles of a magnet?

• South and West

• West and East

• North and South

• North, South, East, West

Magnetic poles that are alike ______ each other.

• Repel

• Attract

Magnetic poles that are different _______.

• Attract

• Repel

Where is the force the strongest on a magnet?

• The force is the same across the entire magnet

• The south pole of the magnet

• Both poles of the magnet

• The north pole of the magnet

True or False: Magnets have to touch objects to attract them

• True

• False