SOUND
SOUND Sound :-- Sound is a form of energy which produces a sensation of hearing in our ears. Sound waves that we can hear or sound is made up of the vibrations. The to and fro motion of the body is called as vibration. Sound is a vibration that propagates as and acoustic wave, through a transmission medium such as solid, liquid or gas. Sound is defined as Oscillation in pressure, stress, particle displacement, particle velocity, etc., propagated in a medium with the internal forces (such as elastic or viscous) or the superposition of such propagated oscillation. The sound is the form of energy that helps in the listening of human being. And also sound is a form of the kinetic mechanical energy which moves in a form of a wave. Hertz (Hz) and Decibel (DB) are used measurement units to measure the sound. Production of the sound? The object is vibrating and produces the sound. Vibration means a kind of rapid