Question

What is the amplitude of a sound wave perceived by the human ear?

a) Loudness.

b) Pitch.

c) Quality.

d) Frequency.

Answer 1

Amplitude, or the dimension of a wave from peak to trough, in sound is heard as volume. The sound waves of louder sounds have greater amplitude than those of softer sounds.

Step-by-step explanation:

Amplitude, or the dimension of a wave from peak to trough, in sound is heard as volume. The sound waves of louder sounds have greater amplitude than those of softer sounds. For sound, volume is measured in decibels (dB). The softest sound that a human can hear is the zero point.