Evelynn is measuring the pitch of a piano note. what unit of measurement is she most likely recording her value in? a. hertz b. decibels c. frequency d. amplitude

The correct answer to the question is A. hertz i.e the unit of measurement of pitch is hertz [ Hz ] .

EXPLANATION:

The pitch of a sound is defined as the sensation of frequency . It is the perceptual property of sound which is used to judge the quality of a sound.

A low pitched sound refers to low frequency while a high pitched sound refers to high frequency.

The frequency is measured in hertz unit  which is the number of cycles of sound per second.

Hence, the unit of pitch is also hertz ( Hz ).

Frequency and amplitude are not units. These are the physical quantities associated with sound.

On the other hand, decibel is a measure of loudness of sound.

Hence, the unit of measurement taken by Evelynn to record the pitch is hertz.