Sound

Definition

Sound refers to the vibrations that travel through the air or another medium and can be heard when they reach a person's ear. It is produced by an object vibrating, which then causes the air particles around it to vibrate as well.

Related terms

Frequency:

The number of sound waves per second. Higher frequency results in higher-pitched sounds.

Pitch:

How high or low a sound is perceived. High pitch corresponds to high-frequency sound waves, while low pitch corresponds to low-frequency sound waves.

Amplitude:

The intensity or loudness of a sound wave. Higher amplitude produces louder sounds, while lower amplitude produces softer sounds.