Sound

Sound sources

• Emit sound

• Detect sound

• Reflect light

Sound detectors

• Emit sound

• Detect sound

• Reflect light

Select all the sound sources

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Select all the sound detectors

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A sound wave consists of a

• transverse wave

• longitudinal wave

Which of the following represents a longitudinal wave?

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• 

Label A is referred to as a

• compression

• rarefaction

Label B is referred to as a

• compression

• rarefaction

Sound can travel in solids, liquids, gasses and vacuum.

• True

• False

Sound cannot travel in a vacuum since there are no _________.