Question

1. what does amplitude determine in a sound wave?

a. length
b. loudness
c. pitch
d. speed

Explanation:

The amplitude of a sound wave is related to the energy carried by the wave. A larger amplitude means more energy is carried, and this results in a louder sound. Length of a sound wave is related to its wavelength. Pitch is related to the frequency of the sound wave. The speed of a sound wave in a given medium (like air at a constant temperature) is relatively constant and not determined by amplitude.

Answer:

B. Loudness