CFE Review #4 (B) - Electromagnetic (EM) Spectrum

What is the electromagnetic spectrum?

• how the sun emits energy

• how the sun makes energy

• how the sun's energy converts to chemical energy

• how the sun absorbs energy

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EM waves used to broadcast television signals

• radio waves
• infrared
• gamma rays
• x rays

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The electromagnetic spectrum is the entire range of

• colors of visible light
• ultraviolet light.
• gamma rays and X rays.
• EM waves.

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The entire electromagnetic spectrum is divided into regions by

• color
• speed
• wavelength
• the way they are used

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EM waves used to treat some forms of cancer

• microwaves
• gamma waves
• ultraviolet
• infrared

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White light is the entire range of

• colors of visible light combined.
• ultraviolet light.
• gamma rays and X rays.
• EM waves.

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EM waves used in security scanning devices in airports

• ultraviolet
• x rays
• radio waves
• infrared

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EM waves that make an object feel warmer

• visible light
• red light
• infrared waves
• ultraviolet

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Ultraviolet light is associated with

• human vision
• communication
• lung cancer
• producing vitamin D

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Which color of light has the longest wavelength?

• orange
• red
• blue
• green

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