Question

Distinguish between fundamental units and derived units

Answer 1

The quantities that do not depend on any other physical quantity for their measurements are known as fundamental quantities. There are only 7 physical quantities. And rest of all other quantities are derived quantities. Derived quantities are products and/or ratios of the fundamental quantities that exist in a system of units.
The seven fundamental quantities are :

1. Mass : Kilogram
   
2. Time : Second
3. Length : Meter
4. Temperature : Kelvin
5. Electric current : Ampere
6. Amount of substance : Mole
7. Luminous Intensity : Candela