Question

Which units measure the amplitude of sound waves?

Responses

watts

watts

hertz

hertz

decibels

decibels

seconds

Answer 1

The units that measure the amplitude of sound waves are **decibels**.

- **Watts** measure power, not amplitude directly.
- **Hertz** measures frequency, not amplitude.
- **Seconds** measure time, not amplitude.

So, the correct answer is **decibels**.