There are two basic types of waves. They are called transverse waves and longitudinal waves. Sound Sound is produced by a vibrating source and is transmitted through a medium. The disturbances detected by our ears are propagated by wave motion. Sound may be reflected and refracted.
Sound waves are longitudinal waves.
Nature of Light Light is a form of energy. Light can also be converted to other forms of energy. This can be illustrated by the use of a magnifying glass to change sunlight into heat to ignite a piece of paper. Light travels in a straight line. White light is a mixture of all colors.