kinetic and potential energy have many forms. 1. mechanical energy - energy associated with motion...
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Kinetic and Potential Energy have many
forms
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1. Mechanical Energy -
Energy associated with Energy associated with motion or positionmotion or position
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Examples: most moving objects have mechanical energy
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2. Thermal Energy (Heat) -
Total energy of the Total energy of the particles in an objectparticles in an object
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Example: Heating causes the particles to move faster = more thermal energy
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3. Chemical energy -
Energy stored in Energy stored in chemical bondschemical bonds
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Examples: wood, food, gasoline, Examples: wood, food, gasoline, batteriesbatteries
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4. Electrical energy -
Energy of moving Energy of moving electronselectrons
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Example : electric outletExample : electric outlet
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5. Radiant or Electromagnetic (Light) energy
Travels in wavesTravels in waves
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Examples: lightbulb, Examples: lightbulb, microwavemicrowave
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6. Sound energy-
Caused by an object’s Caused by an object’s vibrationsvibrations
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Example : guitar, boomboxExample : guitar, boombox
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7. Nuclear energy -
Potential energy stored in Potential energy stored in the nucleus of an atomthe nucleus of an atom
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Example : nuclear power Example : nuclear power plants, sunplants, sun
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Energy Conversions -
A change from one form A change from one form of energy to anotherof energy to another
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Conversion example 1
Lamp : electrical Lamp : electrical energy converts to energy converts to
light energylight energy
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Conversion example 2:
Water heater : Chemical Water heater : Chemical energy of gas to thermal energy of gas to thermal
(heat ) energy(heat ) energy
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Conversion example 3:
Human body : converts Human body : converts chemical energy in food to chemical energy in food to
mechanical energymechanical energy
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Energy is Conserved
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Energy is conserved
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Energy is Conserved
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Pendulum