Magnetism

Magnetism

Multiple Choice

What happens when two north poles of a magnet are placed together?

• they repel
• they attract
• they cancel each other out
• the strength of the magnet is doubled

Multiple Choice

This large crane magnet functions only when the electrical current is ON.  The crane magnet is an example of what type of magnet?

• NIB Magnet
• Ceramic Magnet
• Electromagnet
• funnel magnet

Multiple Choice

Where is Earth's magnetic field strongest?

• Along the outside lines
• Along the inside lines on either side
• Where the lines are close together at the poles
• In the space outside of the lines

Multiple Choice

A north pole and a south pole will attract.

• True
• False

Multiple Choice

A magnet cannot not move which of the following objects?

• a paper clip
• a nail
• a toothpick
• a staple

Multiple Choice

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

Multiple Choice

A Magnet can be used to create electricity

• True
• False

Multiple Choice

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

• North
• South
• East 
• West

Multiple Choice

Magnetic NORTH is actually geographic _________

• SOUTH
• NORTH
• EAST
• WEST

Multiple Choice

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

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

Multiple Choice

The lines on this image are called...

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

Open Ended

Compare and contrast the use of plotting compasses and iron filings for mapping a magnetic field