The particles of a tuning fork vibrate when struck. Its vibration is determined by the force of the stroke. Not only the particles of the fork vibrate, but the prongs move in a wave-like motion. This double movement of the atoms may be likened to waves of water which consist of an enormous amount of molecules, the drops of which move freely with each other, a good illustration of molecular oscillation. The tuning fork is used to tune instruments, to get the pitch.
Pitch is the rate of vibration.
The vibrations of the voice is made to harmonize with those of the tuning fork. I have just said that there are two separate and distinctly different movements of the atoms or molecules of substances. The movement of one atom against another, or others, for it touches all those which surround it, creates heat. The movement of a great number of these body atoms create within us consciousness. Gould s Dictionary says, Temperature, the degree of intensity of heat or molecular vibration.