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Student Projects/Kinetic Energy and Potential Energy

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KINETIC ENERGY

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Definition

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The energy of a moving object is called kinetic energy. The word kinetic means motion.

Examples

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          1. A person walking has kinetic energy.
          2. A simple pendulum.
          3. A falling ball.

Formula

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          K.E= ½mv²
          where m is the mass of the object 
                v is the speed or velocity with which it is moving.


POTENTIAL ENERGY

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Definition

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The energy stored is called potential energy. it depends upon height or position of the object .

Examples

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           1.  A simple pendulum.
           2.  A person sitting or sleeping.
           3.  Water stored in a tank.

Formula

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           P.E= mgh
           where m  is the mass of the object 
                 g is acceleration due to gravity
                 h is height at which the object is situated from ground level.

MISCELLANEOUS

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kinetic energy can be converted to potential energy and vice versa. Most of the systems possess both kinetic and potential energy , it depends on the situation or instance when we are looking at the system .