Unit 6 Review: Waves

The wavelength of a wave means

• the height of the wave

• the distance from the resting position to the wave's crest

• the distance from one crest to the next crest

• the number of wave cycles per second

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The amplitude of a wave means

• the height of the wave

• the distance from the resting position to the wave's crest

• the distance from one crest to the next crest

• the number of wave cycles per second

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The frequency of a wave means

• the height of the wave

• the distance from the resting position to the wave's crest

• the distance from one crest to the next crest

• the number of wave cycles per second

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Which of these is an example of a wave?

• sound

• light

• gamma ray

• radio

• all of the above

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The higher the amplitude of a wave, the . . .

• higher the frequency

• higher the energy

• lower the frequency

• lower the energy

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The larger the wavelength of a wave, the . . .

• higher the frequency

• higher the energy

• lower the frequency

• lower the energy

The higher the frequency of a wave, the . . .

• higher the amplitude

• higher the energy

• lower the amplitude

• lower the energy

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Sound intensity is measured using the unit

• Hertz (hZ)

• wavelength

• frequency

• decibels (dB)

The radio is playing at 50 dB. Your friend turns up the volume, and it now plays at 70 dB. How much more intense is the sound?

• 10 times

• 20 times

• 100 times

• 200 times

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You buy a new backpack that absorbs almost no light at all. The backpack will appear

• gray

• black

• white

• Not enough information provided.