If a piano player softly taps a key and then hits the same key with a lot of force, the second note will sound louder because of a difference in the _____ of the sound wave.
A)frequency
B)wavelength
C)amplitude
D)timbre

Question

Quizplus · Accepted Answer

The amplitude of a sound wave determines its loudness. When the piano key is hit with more force, the amplitude of the sound wave increases, making the sound louder.

If a Piano Player Softly Taps a Key and Then