What causes different piches in sound?

Answer 1

Different pitches of sound are caused by intensity, pitch, and tone. Intensity is the amount of energy a sound has over an area. This means the same sound is more intense if you hear it in a smaller area. In general, sounds with a higher intensity are louder. Pitch depends on the frequency of a sound wave - high sounds have high frequencies and low sounds have low frequencies. The quality of the sound depends entirely on the combination of different frequencies of sound waves.

Answer 2

Different pitches in sound are caused by the frequency of the sound wave. Higher pitch sounds have higher frequencies, while lower pitch sounds have lower frequencies. When an object vibrates at a faster rate, it produces a higher pitch, and vice versa.