Magnetism Unit Review

What will happen when these magnets are brought close together?

• They will attract each other.
• They will repel each other.
• Both magnets will turn to the left
• Both magnets will turn to the right

Where is the force of attraction the strongest on a magnet?

• at the poles
• in the middle
• above the magnet
• below the magnet

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

What do the lines around this magnet represent?

• North Pole
• South Pole
• Magnetic Declination
• Magnetic Field

A magnetic field is a field of force that is produced by moving ________ charges.

• northern

• positive

• gravitational

• electric

A compass points toward the south pole of Earth's magnetic field, located near the Earth's geographical ________.

• north

• south

• east

• west

Probably the most useful thing about electromagnets is that they can be turned ________ and ________.

• on, off

• positive, negative

• north, south

• on, negative

Identify the parts of the right hand rule

c

b

a

direction of magnetic field

direction of current/motion

direction of force

On the lines below, draw arrows representing the direction of the magnetic field.

• 0.02 N

• 0.4 N

• 0.0004 N

• 0.01 N