What is described by the frequency of a wave? A. The speed the wave is traveling through space
B. The number of waves that pass a point in 1 second
C. The height of the wave from trough to peak
D. The distance from one peak to the next peak

Frequency describes the number of waves that pass a fixed place in a given amount of time. So if the time it takes for a wave to pass is is 1/2 second, the frequency is 2 per second.The hertz measurement, abbreviated Hz, is the number of waves that pass by per second.

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