GMAS Physical Science Practice Test

Which term describes how many times a wave repeats per second?

Amplitude Frequency Wavelength Period

Correct Answer:

Frequency

Explanation:

Frequency is the rate at which a wave repeats its cycle each second, measured in hertz. It tells you how many cycles occur per second. Amplitude describes the height of the wave, wavelength describes the distance between repeats, and period is the time for one cycle (the inverse of frequency). Therefore, the term that describes how many times a wave repeats per second is frequency.

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