5.3.7: Permanent vs. Electromagnet

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

• Repel

• Attract

• Combative

• No effect

What kind of magnet can be turned on and off?

• refridgerator magnet
• electromagnet
• magnetite
• iron

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

Tags

NGSS.3-PS2-3

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

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

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

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is the metal center of an electromagnet called?

• The current
• the wire
• the coil
• the core

The Earth produces its own magnetic field.  True or false?

• False
• True

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

How do you make an electromagnet stronger?

• Add a motor and/or lightbulbs
• Add more light bulbs and/or wire coils
• add more wire coils and/or a switch
• add more wire coils and/or batteries

Tags

NGSS.MS-PS2-3

In the picture of the magnets, what do you predict will happen?

• Set A will attract and Set B will repel.

• Set A will repel and Set B will attract.

• They will both attract.

• They will both repel

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is a permanent magnet?

• The permanent magnet has its own magnetic field.
• A permanent magnet doesnt have its own magnetic field.
• A permanent magnet never repels.

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NGSS.MS-PS2-5