Q. What are Base Quantities?

Answer:

The minimum number of quantities in terms of which other physical quantities can be defined (ie which is the base for other physical quantities) are called Base Quantities. 

In SI, Seven physical quantities are chosen arbitrarily as base quantities. These are Length, mass, times current, thermodynamics temperature, amount of Substance, and luminous intensity.

All The base quantities are Scalar except Electric Current which is a "tenser quantity"



Note: 

A complete set of units for all physical quantities is called a system of units. However, to form a system we do not need to define every quantity, we take only a few quantities (called base quantities) and base units to agree on accessible and invariable standards for measurement such that all other quantities and units are expressed in terms of those quantities.


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1. Website for School and College Level Physics   
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3. Website for Single National Curriculum Pakistan - All Subjects Notes 

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