The some wave has the same frequency as the natural frequency of the tuning fork, the tuning fork is made to vibrate due to a process called resonance.
harmonic resonance
I can say tuning fork.
tuning fork steel instrument in the shape of a U with a short handle. When struck it produces an almost pure tone, retaining its pitch over a long period of time; thus it is a valuable aid in tuning musical instruments.
One could purchase a tuning fork from Amazon. However if one wants to visit a more specialised web site, one would probably want to go to Indigo. They cater for science, engineering or music tuning forks.
A tuning fork combined with a quartz sound magnet.
Vibrations are transferred from one to the other through the air. If the two have the same frequency (or a very similar frequency), resonance will occur.
It's purely descriptive: the item is fork-shaped and is used when tuning musical instruments.
The purpose of a tuning fork is to know the exact pitch of a certain note, and then tune to that note. The string is probably loosened to match the pitch of the tuning fork.
You can purchase a tuning fork on E-bay or any store/shop that sales musical instruments; such as pianos!
Because of the tuning fork's vibrations. It creates compressional sound waves.
Lower frequency equates to a longer wavelength, so the 340 Hz tuning fork would emit a longer wavelength sound.