4)Different+Types+of+Energy

= Types of Energy = = = = =

__Potential energy__

 * **Defined as the work done against a given force**
 * **Energy possessed by an object due to its position/condition**

__Elastic potential energy__

 * **Work needed to compress (or expand) a spring**

__Gravitational potential energy__

 * **E= mgh**
 * **Gravitational acceleration on Earth is** **about 9.8m/s²**
 * **Gravitational acceleration on Moon is about 1.6 m/s²**

__Kinetic energy__
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 * **Energy that moving bodies possess**
 * **Work required to accelerate an object to a given speed**
 * **Depends on MASS and VELOCITY **

__Electric energy__

 * ** Work which must be done against the Coulomb force to rearrange charges from infinite separation to this configuration **

__Chemical energy__

 * **Work done by electric forces during re-arrangement of mutual positions of electric charges, electrons and protons, in the process of aggregation**
 * **electrostatic potential energy of electric charges**

__Link to Roller Coasters__

 * Energy involved in roller-coaster
 * Gravitational Potential Energy
 * Kinetic Energy
 * Thermal Energy (due to friction)
 * Sound Energy (due to rubbing of wheel against track. and screaming of course)