System Of Units

 System of Units :-

A system of units is a complete set of fundamental units from which all derived units are obtained by simple multiplication or division of the fundamental units without introducing any additional numerical factors.

# There are mainly four types of systems of units

                    (I) CGS system of units

                    (II) FPS  system of units

                    (III) MKS system of units

                    (IV) International system of 

                            units.(SI)

                             

(I) CGS system of units :-

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CGS System of units is based on centimetre as unit of length,gram as unit of mass and second as unit of time.

(II) FPS  system of units :-

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The FPS system of units is based on foot as unit of length,pound as unit of weight and second as unit of time.

   (III) MKS system of units :-

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The MKS system of units is based on metre as unit of length ,kilogram as unit of mass and second as unit of time.       

IV) International system of units.(SI)

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The base units in the system are metre for length,kilogram for mass,second for time,ampere for current,Kelvin for temperature,canela for luminous intensity and mole for amount of matter.          

                The SI units also include two supplementary units,that is  Unit of angle (radian) and Unit of Solid angle (steradian).