A tuning fork serves as a useful illustration of how a vibrating object can produce sound. The fork consists of a handle and two tines. When the tuning fork is hit with a rubber hammer, the tines begin to vibrate. The back and forth vibration of the tines produce disturbances of surrounding air molecules.
Why is tuning fork used?
The tuning fork vibrates at a set frequency after being struck on the heel of the hand and is used to assess vibratory sensation and hearing (air conduction and bone conduction).
How do you use a tuning fork?
https://www.youtube.com/watch?v=hW-igtIn3A8
What waves are produced by a tuning fork?
As far as I know, tuning forks are used in air, meaning they generate longitudinal sound waves.