⚔️🔬 Science 🔬⚔️ The importance of science is well known today. Science is not just limited branch, it is very wide branch and extend study of the basics of science makes a new branch of science. For example, Biology is branch in which the study of living being occurred, Chemistry the study of chemical, Microbiology the study of microorganisms, cell biology the study of all types of cell....etc....etc. But science does not seem to be as important as it should be. Now people understand that there is no alternative without science. Every one know that the science is a great career field, this is also a good education field, that's all there is to it. Still, we can say that ' Science is the one of the army of our country '. What is this nonsense....... How is that........ So let to prove this sentence, with evidence.... At first I would like to say that, we can't imagine the world without Science, because Science has given us ...
What mean by Units......?
Unit is the basic part of the measurement, because without unit we don not measured anything.
Unit:-
The reference standard used for the measurement of a physical quantity is called a Unit.
System of units:-
- C.G.S.
- M.K.S.
- F.P.S.
S.I. units :-
Use of different system of units became very inconvenient for exchanging scientist information between different parts of the world.
Hence, in October 1960 at the Eleventh International General Conference of weights and measures, in Paris, a common system of units called "System International d' Units" was accepted.
This system of units called S.I. units consistent of seven fundamental units, two supplementary units and large number of derived units.
Units are classified into two groups Fundamental units and Derived units.
The seven basic physical quantities:
Length, mass, time, temperature, electric current, luminous intensity and amount of substance which are independent of any other quantities for their measurements are called Fundamental Quantities and their units are called Fundamental Units.
Fundamental Quantities :-
"The physical quantities which do not depend on any other physical quantities for their measurements are known as Fundamental Quantities".
Fundamental Units :-
"The unit's used to measure fundamental quantities are called Fundamental Units".
Derived Quantities :-
"The physical quantities which depend on one or more fundamental quantities for their measurements are known as Derived Quantities".
Derived units :-
" The unit's of derived quantities which depend on fundamental units for their measurements are called Derived Units".
Below shows the some examples of derived derived quantities and units.
Below shows the some examples of derived derived quantities and units.
*Science world*
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