Sunday, September 15, 2013

forms of energy

There are different forms of energy in the world such as kinetic, potential,mechanical,chemical and electrical energy.These energy sources are the common in human life.

Mechanical energy:The energy stored in rhe fotm of rest are known as mechanical energy.such as streched rubber,water stored in dam,gravitational energy,etc.

E_\mathrm{k} = \int \mathbf{F} \cdot d \mathbf{x} = \int \mathbf{v} \cdot d \mathbf{p}Kinetic energy:The energy in the form of motion is called kinetc energy.Kinetic energy is the work required to accelerate an object to a given speed. In general:
Nuclear energy:Nuclear energy, is the use of exothermic nuclear processes,to generate useful heat and electricity. The term includes nuclear fission, nuclear decay and nuclear fusion.

Chemical energy:Chemical energy is the potential of a chemical substance to undergo a transformation through a chemical reaction or, to transform other chemical substances. Examples include batteries and light bulbs and cells etc. Breaking or making of chemical bonds involves energy, which may be either absorbed or evolved from a chemical system.

 Electrical energy:Electrical energy is energy newly derived from electrical potential energy. When loosely used to describe energy absorbed or delivered by an electrical circuit (for example, one provided by an electric power utility) "electrical energy" refers to energy which has been converted from electrical potential energy.

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