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Vocabulary unit 4
Physical Science
13
Physics
12th Grade
10/20/2011

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Term
Mechanical Energy
Definition
Sum of the potential enegry and kinetic energy in a system.
Term
Elastic Potential Energy
Definition
Energy  stored when an object is compressed or stretched.
Term
Joule
Definition
SI Unit of Energy
Term
Kinetic Energy
Definition
Energy moving  a  object has because  of its motion depends on the and speed of the object.
Term
Law of conservation of energy
Definition
States that energy can never be created  or destroyed
Term
chemical Potential Energy
Definition
Energy stored  in chemical bonds.
Term
Gravitional Energy
Definition
Energy stored by objects due to their position above
Term
Kinetic Energy
Definition
(in Joules)=1/2 mass( in kg)x[speed(m/s2]) KE= 1/2 m v 2
Term
Mechanical Energy
Definition
Sum of the potential energy can never be created or destroyed
Term
Energy
Definition
When something is able to change its envioment or itself.
Term
Nuclear Fission
Definition
Nuclear power plants to generate electrical energy.
Term
Electrial Energy
Definition
Energy made availbe by the flow electric change through a conductor
Term
Nuclear Energy
Definition
Energy release by reactions within atomic nuclei as nuclear fission or fusion
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