AS Physics - Waves - Revision

Which EM waves have the longest wavelength?

• radio

• x-rays

• ultraviolet

• gamma rays

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Which EM waves have the shortest wavelength?

• radio

• x-rays

• ultraviolet

• gamma rays

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Which EM waves are invisible? (more than one correct answer)

• radio

• visible

• ultraviolet

• gamma rays

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Which EM waves are have a SHORTER wavelength than visible?

• radio

• none

• infrared

• x-rays

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Which EM waves are have the highest energy & are the most dangerous?

• radio

• gamma rays

• infrared

• x-rays

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Which color waves have the shortest wavelength?

• red

• yellow

• green

• violet

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Which type of electromagnetic wave travels fastest through a vacuum?

• radio

• gamma rays

• visible light

• They all travel at the same speed.

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The diagram shows a person observing a thunderstorm located several kilometers away. The person hears the thunder several seconds after seeing the lightning. Which statement accurately explains the difference in observations of sound and light by the observer?

 

• Human eyes see light faster than their ears can hear sound.

• The medium the waves are traveling through is different for each type of wave.

• Light waves travel faster than sound waves.

• Sound waves travel faster than light waves.

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All of the waves listed below are a part of the electromagnetic spectrum except

• X Rays

• Sound Waves

• Gamma Rays

• Light Waves

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How does the hazard level of electromagnetic waves change as the frequency of the waves increases?

• Energy and wavelength increase; it becomes more hazardous.

• Energy and wavelength decrease; becomes less hazardous.

• Energy decreases, wavelength increases; it becomes less hazardous.

• Energy increases, wavelength decreases; it becomes more hazardous.

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