Explain the terms: (a) Unit (b)SI system of unit.
Answers
Answer:
CGS system: centimeter, gram, second
FPS system : foot, pound, second
foot, yard, miles...
MKS system : meter, kg, second.
SI : System Internationale des Unites
This is a complete set of units and used in all countries.
meter, kg, second, ampere for current, degree Kelvin for temperature.
candela is the unit for luminous intensity of light.
mole is the unit for amount of substance or material.
The magnitudes of the basic units are defined in terms of standards,which are supposed to be stable and unchanging
Unit :
A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity. Any other quantity of that kind can be expressed as a multiple of the unit of measurement. For example, a length is a physical quantity.
SI system of unit:
The International System of Units (abbreviated SI from systeme internationale , the French version of the name) is a scientific method of expressing the magnitudes or quantities of important natural phenomena. There are seven base units in the system, from which other units are derived.
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