Electromagnetism

What kind of magnet can be turned on and off? (Man-made magnet)

• refrigerator magnet

• electromagnet

• magnetite

• iron

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If you wrap more coils around an electromagnet, it will become...(think about the Webquest.)

• brighter

• stronger

• weaker

• invisible

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NGSS.MS-PS2-3

Choose the best option to complete this gap:
A magnetic field is the ________ around a magnet in which the magnetic force acts.

• pole

• electron

• area

• iron

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NGSS.MS-PS2-3

The relationship between electricity and magnetism is called

• solenoid

• transformer

• electromagnetism

• electromagnet

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Iron, Nickel and cobalt are all __________________ materials

• Shiny

• poles

• magnetic

• cold

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NGSS.MS-PS2-3

Particles with opposite charges ____________ and particles with same (or like) charges ____________.

• attract, repel

• repel, repel

• attract, attract

• repel, attract

The picture above is an example of what?

• Magnetic field

• Electric field

• Repulsion

• Attraction

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Voltage can be induced in a wire by

• a. moving the wire near a magnet.

• b. moving a magnet near the wire.

• c. changing the current in a nearby wire.

• d. all of these

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NGSS.HS-PS2-5

What would happen if I move a bar magnet in and out of a coil of copper wire?

• Electric current would disappear 

• The magnet would explode 

• Electric current will flow through the wire

• It would produce a gravitational field

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NGSS.HS-PS2-5

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What type of process is shown?

• Electromagnet

• Electric motor

• Electric generator

• Electromagnetic induction

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