Question

The _______ of a sound wave is defined as the amount of energy passing through a unit area of the wave front in a unit of time

a. intensity
B. amplitude
C. frequency
D. compression

Answer 1

the best answer is a) intenisity, also called acoustic intensity: the amount of energy (sound energy, energy associated with a vibration).

Intensity of the sound wave is the watt amount per square meter; where watt is a unit of power(energy)