What is the standard unit used to express the frequency of sound waves?

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Multiple Choice

What is the standard unit used to express the frequency of sound waves?

Explanation:
Frequency is how many times a sound wave repeats each second, and the standard unit for that is the hertz (Hz). One hertz equals one cycle per second, and for audible sounds you often see values in Hz or kHz. The other terms refer to different quantities: decibels measure sound intensity or loudness, pascals measure pressure, and newtons measure force. So when describing the pitch of a sound, you use Hz. For example, a tuning fork vibrating at 440 Hz produces a musical note A.

Frequency is how many times a sound wave repeats each second, and the standard unit for that is the hertz (Hz). One hertz equals one cycle per second, and for audible sounds you often see values in Hz or kHz. The other terms refer to different quantities: decibels measure sound intensity or loudness, pascals measure pressure, and newtons measure force. So when describing the pitch of a sound, you use Hz. For example, a tuning fork vibrating at 440 Hz produces a musical note A.

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