The high notes on a piano always produce ________ sound waves than the low notes.
A) higher-amplitude
B) lower-amplitude
C) higher-frequency
D) lower-frequency

Question

Quizplus · Accepted Answer

The pitch of a sound is determined by its frequency, or the number of waves (oscillations) that pass by a given point in one second. Higher-pitched notes have a higher frequency than lower-pitched notes. Therefore, the high notes on a piano produce higher-frequency sound waves than the low notes. The amplitude of a sound wave, or its height from peak to trough, determines the loudness or volume of the sound, but it is not directly related to pitch. Therefore, choices A and B are incorrect.

The High Notes on a Piano Always Produce ________ Sound