Frequency
Frequency describes how often a sound wave repeats itself.
What is Frequency?
Frequency refers to the number of times a sound wave repeats its cycle in a given time period, usually one second. A cycle is one complete repetition of the wave, starting from any point and returning to that same point. For example, if a soundwave repeats itself 440 times in one second, its frequency is 440Hz (Hertz).
Measuring Frequency:
Frequency is measured in Hertz (Hz), which is the number of cycles per second. One cycle is a complete repetition of the wave, and it can be divided into 360 degrees, just like a circle. The starting point of a cycle can be anywhere on the wave, but it must end at the same point one repetition later.
Frequency and Pitch:
The frequency of a sound wave determines its pitch. Higher frequencies produce higher pitched sounds, while lower frequencies produce lower-pitched sounds. For example, the middle C note on a piano has a frequency of about 262Hz, while the high C note has a frequency of about 1047Hz.