Q. Loudness of sound depends upon which of the following? Answer:
Amplitude
Notes: Sound has three characteristics. Pitch, Loudness and Quality (or tone). Loudness depends on the amplitude of the sound wave. The larger the amplitude the more energy the sound wave contains therefore the louder the sound. The pitch of a note depends on the frequency of the source of the sound; while, the quality of a note depends upon the waveform.