Reading
Thursday 15 march 2018
Sound energy is produced when an object vibrates.The sound vibration cause waves of pressure that travel through a medium,such as air,water,wood or metal.Sound energy is a form of mechanical energy.
Sound is produced when something vibrates.The vibrating body causes the medium water air and etc around it to vibrate.Vibrations in air are called travelling longitudinal waves wich we can hear.Sound waves consist of areas of high and low pressure called compression and rarefaction and respectively.