Magnets and Electromagnets

What are the two poles on a magnet?

• North and South

• East and West

• North and West

• South and East

What happens when the OPPOSITE poles of two magnets come near each other?

• The magnets push away.

• The magnets pull together.

• The magnets get bigger.

• The magnets disappear.

What happens when two magnets repel each other?

• Their magnetic fields get bigger.

• They come closer together.

• They push away from each other.

• They point to the North Pole.

4. What kind of object will a magnet attract?

• Plastic objects

• Aluminum objects

• Lead objects

• Iron objects

6. What effect will the north pole of one magnet have on the north pole of another magnet?

• They will attract each other.

• They will repel each other.

• There will be no effect.

Why are paperclips attracted to magnets?

• They contain silver

• They contain aluminum

• They contain tin

• They contain iron

How are electromagnets different from regular magnets?

• They can be turned on and off

• Their strength can be changed

• Both 1 and 2

• None of the above

Does coiling the wire create a stronger or weaker magnetic field?

• Stronger

• Weaker

How can you create a magnetic field?

• By stringing magnets together

• By running an electric current through a wire (making an electromagnet)

Where might you find an electromagnet?

• Hanging on your refrigerator door

• In an electric motor

• Holding paper on the whiteboard