electromagnetism

The center of a bar magnet is the strongest

• True
• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The lines on this image are called...

• magnetic field lines
• iron fillings
• graphite lines
• none of these

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Magnetic poles and electric charges are similar in that...

• like poles repel and opposites attract
• magnetic force is equal to electric force

Tags

NGSS.MS-PS2-3

If the end of an unknown magnet sticks to a magnet pole labeled "North" the unknown end must be...

• North
• South
• East 
• West

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Electricity can be used to create a magnet

• True
• False

Tags

NGSS.MS-PS2-3

You can make an electromagnet stronger by...

• increasing the current through the wire
• make the iron core bigger
• increase the number of loops around the core
• All of these

Tags

NGSS.MS-PS2-3

Magnets have a north and a south ___________

• shape
• color
• pole
• region

Which object would a magnet attract?

• a glass bottle
• a piece of paper
• a metal paper clip
  

• a rubber eraser
  

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

True or False: All metals are attracted to magnet.

• True
• False

A device that uses a free-moving magnetic needle to show direction is a:

• Ruler
• magnet
• compass
• magnetic field