Energy

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Energy
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Energy

• Ability to do work Does stuff
• Energy comes in many different forms
• Energy can change from one form to another

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Forms of Energy
Nuclear Electrical Sound Radio
Mechanical Heat Chemical Electromagnet
ic (Light)
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States of Energy
Potential Energy waiting to be used
Kinetic Energy being used / released
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Law of Conservation of Energy
Energy in the universe is neither created or
destroyed (there is a constant amount of
energy) Energy can only be converted from one
form to another (energy isnt lost, it merely
changes form) Energy conversions occur without
loss or gain in energy (however, not all forms
of energy are useful)
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Energy Conversions
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Nuclear
Sun H2 He
light
sunlight
chemical
Energy of plants
chemical
Food energy ( carbos, lipids, etc)
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mechanical
Energy of you moving
mechanical
Energy of a turbine
electrical
Electricity (moving electrons)
Light heat
Light bulb turns on, gives off heat
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Nuclear
Sun H2 He
light
sunlight
chemical
Energy of plants
chemical
Oil (millions of years ago)
Mechanical
car moving
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