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Law of Conservation of Energy

 

 Energy exist in many forms and can be converted between the different forms.  The different types of energy can be classified as Kinetic or Potential.

Thermal Kinetic because molecules or atoms are moving.
  
Chemical Potential because it is due to attractive forces and the positions of the atoms and molecules.
  
Nuclear Potential because it is due to stability of different forms.
  
Magnetic Potential because it is due to position of the components.
  

We have all ready seen the example of a falling ball where Potential Energy is converted to Kinetic Energy.

Many times energy is transferred from one body to another body.  When a spring is released, the Potential Energy of the spring can be transferred to a ball as Kinetic Energy.  When a chemical bond is broken, its Potential Energy can be transferred to the surrounding molecules as Thermal Energy, Kinetic Energy.

The transfer of energy is accompanied by the performance of work. 

 

Law of Conservation of Energy       The total energy is neither increased or decreased in any process.  Energy can be transformed from one form to another, and transferred from one body to another, but the total amount of energy remains constant.