What does a higher frequency indicate about sound?

A higher frequency in sound waves corresponds to a higher pitch. Sound is a type of wave that travels through the air (or other mediums), and frequency refers to the number of waves that pass a point in a given amount of time, usually measured in Hertz (Hz). When the frequency increases, the waves oscillate more rapidly, which is perceived by our ears as a higher pitch.

For instance, if you consider a musical instrument, a note played on a high-frequency string will result in a sound that is higher in pitch compared to a note played on a lower-frequency string. This principle is essential in music and sound design, as it helps in creating and distinguishing between different tones.

Loudness, on the other hand, is related to the amplitude of the sound wave, not its frequency, which is why options concerning loudness don't relate to the concept being discussed.