Energy Transfer

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But.....we can lose it

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It can end up places we don't want.

It can get converted to a form that is not useful to us.​

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When energy is transferred, some energy is usually "lost"

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When energy is transferred, some energy is usually "lost"

​as heat, sound, or light.

​Energy Efficiency of Incandescent and Fluorescent lamps

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Less than 1% of the energy we started with gets turned into light!​

Engineers work on solving these problems by trying to make more efficient power plants, light bulbs, and distribution grids.

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Example: LEDs vs. Incandescent​

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chemical --> kinetic

Only 17-21% of the energy in gasoline goes to moving the car!