Question

the intensity of sound depends on which of the following?
select all that apply
a speed at which the sound waves traveled from the sound source.
b frequency of the sound waves produced by the sound source.
c distance the sound waves have traveled from the sound source.
d amplitude of the sound waves produced by the sound source.

Explanation:

• The intensity of sound is given by the formula \(I=\frac{P}{A}\), where \(P\) is the power of the sound source (related to amplitude and frequency as \(P \propto A^{2}f\)) and \(A = 4\pi r^{2}\) (where \(r\) is the distance from the source).
• The speed of sound (\(v=\sqrt{\frac{B}{

ho}}\), where \(B\) is the bulk modulus and \(
ho\) is the density of the medium) does not directly affect the intensity formula \(I=\frac{P}{A}\).

Answer:

B. Frequency of the sound waves produced by the sound source.
C. Distance the sound waves have traveled from the sound source.
D. Amplitude of the sound waves produced by the sound source.