Open SciEd Forces at a Distance Final Review

What effect will the south pole of one magnet have on the south pole of another magnet?

• Repulsive
• Attractive
• Combative
• No effect

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

• Add more coils of wire to the nail.
• Use a smaller battery.
• Reverse the poles of the magnet.
• Remove all the coils and the nail.

Tags

NGSS.MS-PS2-3

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

What kind of magnet can be turned on and off?

• refridgerator magnet
• electromagnet
• magnetite
• iron

Tags

NGSS.MS-PS2-3

Surrounding every magnet is a __________  __________.

• magnetic field
• electrical current
• another magnet
• an enemy

Tags

NGSS.MS-PS2-3

The magnetic field stores _____________ ___________.

• potential energy

• electrical current
• iron filings

• kinetic energy

Tags

NGSS.MS-PS2-3

In order for an electromagnet to be formed, an __________ current must pass through a coil of __________.

• wire, iron

• electric, wire

• iron, electric

• excited, hair

Tags

NGSS.MS-PS2-3

What are the ends of a magnet called?

• East and west poles
• Left and Right ends
• North and South ends
• North and South poles

Any material that attracts iron or materials containing iron is a(n) 

• A. electric generator
• B. solenoid
• C. magnet
• D. magnetic force

Tags

NGSS.MS-PS2-3

A compass needle responds to a magnetic field, because the compass needle is a

• A. generator.
• B. motor.   
• C. magnet.
• D. transformer.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

How do electromagnets differ from regular magnets? 

• A. They  can be turned off and on 
• B. Their polarity can be reversed
• C. Their strength can be changed
• D. All of the above

Tags

NGSS.MS-PS2-3