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Energy Test - Study Guide
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Non-renewable resources are limited in supply- these include fossil fuels such as coal, oil, and
gas.
Renewable (alternative) resources are easily or naturally replaced- wind, solar (photovoltaic),
tidal, and hydroelectric are examples.
Kinetic energy is the energy of motion- it depends upon the speed and mass of an object.
Kinetic energy increases as speed and/or mass increase.
Potential energy =(mass)x(gravity)x(height).
Potential energy is energy based upon position.
Potential energy can also be found in chemical form – food, firewood. Energy is stored in the
chemical bonds of these substances and can be release through processes like burning and
digestion.
Electrical energy results from electrons flowing through a wire in a closed circuit (or from areas
of unequal charge- this is static electricity).
Nuclear energy is the energy that holds the protons in an atomic nucleus together. It can be
released by fission or fusion processes.
Radiant energy comes in the form of sunlight, microwave, x-rays, UV light, etc.
Thermal energy is the total heat an object contains. More matter contains more thermal energy
than a smaller amount of matter (if both are the same temperature).
Heat energy flows from warmer areas to cooler areas.
The Law of Conservation of Energy states that energy can change from one type to another .
Energy Transformations occur when one type of energy is converted into a different type of
energy.
o Examples of Energy Transformations: