7. High pitched sounds have relatively large
and small
a. period, wavelength
c. frequency, wavelength
b. speed, period
d. period, frequency

8. As the frequency of a sound increases, the wavelength and the period
a. increases, decreases
c. increases, increases
b. decreases, increases
d. decreases, decreases

9. A sound wave is described as being 384 waves/s. This quantity describes the wave's
a. frequency
b. period
c. speed
d. wavelength

10. The speed of a sound wave depends upon the
a. frequency of the wave c. amplitude of the wave
b. wavelength of the wave d. properties of the medium through which it moves

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