State different types of systems of units.

1.	State different types of systems of units.
Answer» In mechanics, length, mass and time are the three fundamental quantities. They are independent of each other and all other quantities can be related with them. For the units of these three basic quantities, following systems have been used: (i) C.G.S. system (or French system): In this system, the unit of length is centimetre (cm), mass is gram (g) and time is second (s). (ii) F.P.S. system (or British system): In this system, the unit of length is foot (ft), mass is pound (lb) and time is second (s). (iii) M.K.S. system (or metric system): In this system, the unit of length is metre (m), mass is kilogram (kg) and time is second (s).

Answer»

In mechanics, length, mass and time are the three fundamental quantities. They are independent of each other and all other quantities can be related with them. For the units of these three basic quantities, following systems have been used: (i) C.G.S. system (or French system): In this system, the unit of length is centimetre (cm), mass is gram (g) and time is second (s).

(ii) F.P.S. system (or British system): In this system, the unit of length is foot (ft), mass is pound (lb) and time is second (s).

(iii) M.K.S. system (or metric system): In this system, the unit of length is metre (m), mass is kilogram (kg) and time is second (s).

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