Magnetic Forces Review Quiz

A bar magnet is placed on a table, and a sheet of blank paper is placed over the magnet.  What could be sprinkled on the paper to show the magnetic field of the bar magnet?

• salt
• iron filings
• sand
• soil

To make an electromagnet, a conductor should be coiled around --

• a glass tube
• an iron nail
• a roll of paper
• a wooden stick

Which of these can most easily produce magnetic fields?

• sunlight
• wind
• electricity
• flowing water

Tags

NGSS.MS-PS2-3

Which of these correctly shows what happens when two magnets are placed side by side?

• A
• B
• C
• D

Tags

NGSS.3-PS2-3

Magnets have opposite poles, sometimes called north and south.  When you put the north poles of two magnets together, the magnets will ________.

• Repel
• Explode
• Attract
• Spin

Tags

NGSS.3-PS2-3

The needle on a compass is attracted to (points to) what?

• Treasure
• The Atlantic Ocean
• The East Coast
• The North Pole of the planet Earth

Magnetic poles that are alike will...

• attract
• repel
• generate electricity

Tags

NGSS.3-PS2-4

Which rule explains why you would not use a brass rivet to make an electromagnet?

• opposites poles attract
• only iron and steel can become magnetized
• electricity flows from positive to negative
• metals conduct electricity

Tags

NGSS.MS-PS2-3

What component provides the pathway to carry electricity from component to component?

• d cell
• wire
• switch
• wire coil

Which component provides the stored energy to run the electromagnet?

• d cell
• core
• coil
• wire