Question

Which wave property decreases as you get farther away from the source of a sound?

1) speed
2) pitch
3) wavelength
4) intensity

Answer 1

The intensity of a sound wave decreases as you get farther away from its source, following an inverse square relationship.

Step-by-step explanation:

The property of a sound wave that decreases as you get farther away from the source is intensity. This is because the energy of the sound wave is spread over a larger and larger area the further it travels from the source. As the intensity decreases, the loudness of the sound also decreases, which is why sounds get quieter as you move away from the source. It is important to note that this decrease in intensity follows an inverse square relationship; when the distance is doubled, the intensity is reduced to one quarter of its original value.