A tuning fork consists of a handle and two prongs known as tines. When the tines are struck, they vibrate, producing a sound wave at a specific frequency. This sound wave is what’s used in sound ...

This motion may be approximated by that of the tines of a tuning fork when struck, and could be seen as a sinusoidal or SINE WAVE from the trace of a pen attached to the tine and moving against paper ...