Energy is the capacity or power to do work. Energy cannot be created or destroyed, but can be transferred from one form to another or from one object to another. Energy is categorized into two categories, kinetic energy, potential energy, or both. Kinetic energy is the energy of moving objects. Potential energy that is stored. Elastic energy and mechanical energy are both examples of kinetic energy while chemical energy, electrical energy, and gravitational energy are all examples of potential energy. Thermal energy is both kinetic and potential energy. There are many different types of energy and it is used for many different reasons.
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