* Frequency: Frequency is the number of sound wave cycles that pass a point in a given amount of time. It's measured in Hertz (Hz), where 1 Hz means one cycle per second.
* Pitch: Pitch is our perception of how high or low a sound is.
The Relationship:
* Higher Frequency = Higher Pitch: When a sound wave vibrates more rapidly (higher frequency), our brains interpret it as a higher pitch. Think of a high-pitched whistle or a soprano singer's voice.
* Lower Frequency = Lower Pitch: When a sound wave vibrates more slowly (lower frequency), our brains perceive it as a lower pitch. This is like the deep rumble of a bass drum or a baritone voice.
Example:
Imagine a guitar string. When you pluck a string, it vibrates. The thicker the string, the slower it vibrates (lower frequency), producing a low pitch. A thinner string vibrates faster (higher frequency), creating a high pitch.
In short, the faster the vibrations of a sound wave, the higher the pitch we perceive.