Question

A sound wave increases in pitch. Which of the following changes has occurred?

a. the wave frequency decreased
b. the wave amplitude increased.
c. the wave amplitude decreased
d. the wave frequency increased

Answer 1

THE FREQUENCY WILL INCREASED

Step-by-step explanation:

increasing pitch increases frequency which will decrease the wavelength.

Answer 2

If the pitch of a sound increased, then the wave frequency increased. (D)