Skip Navigation

A Sound Education

Author(s): Gregory L. Vogt, EdD

What Is Energy?

Energy is hard to define because it exists in many forms and can change from one form to another. It causes matter to change states (such as the melting of an ice cube or the burning of a candle). Energy also can produce movement (such as a vibration or a physical relocation). 

Energy is anything that can change the condition of matter, or the ability to do work. 

In a sound wave, energy is manifested as vibrations. 

Related Content