Energy Concepts

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Energy

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The ability to do work or cause change; power to move an object by applying force.

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Kinetic Energy

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The energy an object has due to motion. Example: a swing moving even after you get off.

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Potential Energy

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Energy that is about to be increased due to its position or shape. Example: a rock about to be pushed over a cliff.

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Energy Efficiency

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The amount of energy you get from a resource. Example: miles per gallon of gas.

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Energy Transformation

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The change of energy form to another. Example: chemical to motion, radiant to chemical, chemical to motion, electrical to thermal.

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Law of Conservation of Energy

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Energy cannot be created or destroyed. It can be transformed from one form into another but the amount of energy never changes.

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Mechanical Energy

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When an object’s potential energy is combined with its kinetic energy. Example: hammer.

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Radiant Energy

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Energy carried by an electromagnetic wave- only form of energy that can travel through space. Example: sun to plants.

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Thermal Energy

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(Heat) The more heat an object has, the faster the particles move. Example: boiling water.

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Energy Transfer

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Movement of energy from one place or object to another. Example: fire heat to hands.