Electromagnetic Review

What kind of magnet can be turned on and off?

• refridgerator magnet

• electromagnet

• magnetite

• iron

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NGSS.MS-PS2-3

How do electromagnets differ from regular magnets? 

• They  can be turned off and on 

• Their polarity can be reversed

• Their strength can be changed

• All of the above

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Electromagnetism is a magnetism produced by an electric current.

• True

• False

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Electric current can flow through a wire only if it forms a ____

• Open Loop

• Closed Loop

Gamma rays, X-rays, visible light, and radio waves are all types of ________.

• Nuclear energy

• Chromatic aberration

• Ultraviolet radiation

• Electromagnetic radiation

Visible light, infrared radiation, and ultraviolet light are all forms of

• ions

• electromagnetic radiation

• atmospheric gases

• aerosols

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NGSS.HS-PS4-3

The energy transferred through space by electromagnetic waves.

• Electromagnetic radiation

• Longitudinal wave

• Mechanical wave

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NGSS.MS-PS4-1

What rays are used in medicine and industry because they can penetrate materials and tissues?

• Gamma Rays

• Radio waves

• X-Rays

• Visible light

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NGSS.HS-PS4-3

Electromagnetic radiation is simply known as 

• light

• refraction

• reflection

• time

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NGSS.MS-PS4-2

_____ is a common term from electromagnetic radiation

• radiation

• radio

• waves

• light

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