Electromagnetic Waves

The frequency of an electromagnetic wave has which unit?

• Hertz

• Newtons

• Meters/Second

• Nanometers

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Convert this number into scientific notation: 950,000

• 9.5 x 10⁵

• 9.5 x 10^-9

• 9.5 x 10²

• None of the above

Which has the LONGEST wavelength and, therefore, the LOWEST frequency/energy

• Gamma Rays

• Visible Light

• Ultraviolet

• Infrared rays

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NGSS.HS-PS4-1

A device that produces a narrow beam of light of one wavelength is a _________.

• microwave oven

• radar

• laser

• TV

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How is the energy associated with an electromagnetic wave related to the frequency of the wave?

• As the frequency increases, the energy of the wave increases

• As the frequency increases, the energy of the wave decreases

• The energy of an electromagnetic wave is not related to its frequency

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Which type of wave has the longest wavelength?

• X-ray

• Ultraviolet

• Microwave

• Gamma ray

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Infrared rays have a shorter wavelength than

• Ultraviolet ray

• X-rays

• gamma rays

• radio waves

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What is wavelength measured in per second?

• Hertz

• lanta

• inches

• crest to crest

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The waves with the longest wavelengths in the electromagnetic spectrum

• Infrared rays

• gamma rays

• radio waves

• X-rays

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Infrared waves are can be seen by the human eyes.

• TRUE

• FALSE