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Mrs. Trotter Vian Middle School Science Mechanical Electrical chemical sound thermal radiant It takes on two forms • Kinetic • Potential The energy of an object in motion Speed (or velocity) at which the object is moving The mass of the object Heavier objects will have more kinetic energy than lighter objects Described as stored energy • energy is stored by doing work against a force like gravity • Also, the amount of potential energy can increase with mass Remember that energy cannot be created nor destroyed It will just change to other forms Remember that the Sun is the source of almost all energy on the Earth turn to page 89