Question

1.2 System of Units:
In our earlier standards we have come
across various systems of units namely
(i) CGS: Centimetre Gram Second system
(ii) MKS: Metre Kilogram Second system
(iii) FPS: Foot Pound Second system.
(iv) SI: System International
The first three systems namely CGS, MKS
and FPS were used extensively till recently. In
1971, the 14th International general conference
on weights and measures recommended the
use of International system' of units. This
international system of units is called the
SI units. As the SI units use decimal system,
conversion within the system is very simple and
convenient.​

Answer 1

Answer:

I UNITS - DEFINITION

International System of Units (SI) is the unit system adopted by the General Conference on Weights and Measures in 1960 and recommended for use in all scientific and technical fields. It consists of seven base units (meter, kilogram, second, ampere, kelvin, mole, candela) plus derived units and prefixes.

SI SYSTEM OF UNITS - EXAMPLE

The International System of Units (SI) defines seven units of measure as a basic set from which all other SI units are derived. The SI base units and their physical quantities are:

1. meter for length

2. kilogram for mass

3. second for time

4. ampere for electric current

5. kelvin for temperature

6. candela for luminous intensity

7. mole for the amount of substance

CGS, MKS AND FPS SYSTEM OF UNITS - DEFINITION

1. The Centimetre Gram Second system of units (abbreviated CGS or cgs) is a variant of the metric system based on the centimetre as the unit of length, the gram as the unit of mass, and the second as the unit of time.

2. MKS is the system of units based on measuring lengths in meters, mass in kilograms, and time in seconds. MKS is generally used in engineering and beginning physics, where the so-called cgs system (based on the centimeter, gram, and second) is commonly used in theoretic physics.

3. The foot pound second system or FPS system is a system of units built on the three fundamental units foot for length, pound for either mass and second for time.

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System of Units

System of Units