Question

the pitch of the sound produced by the vocal folds is controlled by the
multiple choice
amplitude of the vibrations.
size of the glottis.
thickness of the thyroid cartilage.
force of air moving past them.
frequency of the vibrations.

Explanation:

The pitch of a sound is determined by the frequency of the vibrations. Higher - frequency vibrations result in a higher - pitched sound, and lower - frequency vibrations result in a lower - pitched sound. The amplitude of vibrations affects the loudness, the size of the glottis, thickness of the thyroid cartilage, and force of air moving past the vocal folds are not the primary determinants of pitch.

Answer:

frequency of the vibrations