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Energy

Energy. Transfers and Transformations. Law of Conservation of Energy. Energy can NOT be created or destroyed It is just moves from one object to another, or is transformed from one form to another

neville-morton
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Energy

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  1. Energy Transfers and Transformations

  2. Law of Conservation of Energy • Energy can NOT be created or destroyed • It is just moves from one object to another, or is transformed from one form to another Ex/ Chemical energy in a battery is changed into light energy and thermal (heat) energy in a flashlight. If it is an open system, some energy may be “lost” to the environment (usually as thermal energy/heat)

  3. Energy Transfer • Occurs when energy moves from one object to another without changing form • Ex/ kinetic energy of a bat transfers to the ball it hits • Ex/ kinetic energy of a foot transfers to the ball it kicks

  4. Energy Transformations • Occur when one form of energy is converted to another form • Energy transformations are inefficient – meaning some energy is always transferred to the environment as heat and/or sound

  5. Example of energy transformation… Electrical energy from the power outlet in your house is transferred to a light bulb and transformed into radiant (light) energy and thermal (heat) energy.

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