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AP® Physics 1 & 2

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Moderate

Comparing Sounds From Graphs

APPH12-ZGAB7B

The graph above shows the changes in air pressure at a certain location as a function of time as caused by two different sounds. The pressure changes caused by sound 1 are shown in blue, and by sound 2 are shown in red.

Which of the following conclusions can be drawn from the graph?

A

Sound 1 has a higher frequency than sound 2.

B

Sound 1 has a larger wavelength than sound 2.

C

Sound 1 carries more energy than sound 2.

D

Sound 1 travels faster than sound 2.