Question

which factor primarily affects the pitch of a sound?
○ frequency
○ amplitude
○ wavelength
○ speed
clear my selection

Explanation:

In physics (a subfield of Natural Science), the pitch of a sound is primarily determined by its frequency. Frequency is the number of oscillations per unit time. Higher frequency means higher pitch (e.g., a high - pitched note like a flute has a high frequency), while lower frequency means lower pitch (e.g., a bass note has a low frequency). Amplitude affects loudness, wavelength is related to frequency and speed ($v = f\lambda$ where $v$ is speed, $f$ is frequency, and $\lambda$ is wavelength), and speed of sound depends on the medium, not pitch directly.

Answer:

A. frequency