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# What are the three types of energy?

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More than three types of energy exist, but a few examples of energy types include mechanical, heat and electrical energy. These describe the energy of motion that does work, the energy of being pushed into motion by heat and the energy when electricity creates motion, light and heat.

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One example of mechanical energy is wind turning a windmill. Heat energy is illustrated by watching fire generate warmth. Electrical energy is seen in many electrical appliances. Additional energy types include chemical and gravitational, which are the energies from chemical reactions and from gravity, respectively. The major forms of energy are kinetic and potential, which describe energy at work and energy that is stored.

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## Related Questions

• A:

Elastic energy is the potential energy stored in a material or physical system as the volume or shape is distorted. When objects are stretched or compressed, elastic energy is stored, according to the Physics Classroom.

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Gravitational energy is the movement of an object or mass that is caused by the pull of gravity. This is caused on Earth by the strong attraction of all other masses to be drawn back to Earth's center. An example of gravitational energy is water from a river tumbling over a cliff to form a waterfall.

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Kinetic energy is used by exploiting the motion of an object. For example, the energy of a moving piston in an automotive engine provides transportation. The kinetic energy of moving water powers hydroelectric dams that provide electricity.