Question

Define the term fundamental unit. Name the fundamental units of mass, length, time, current, and temperature.

Answer 1

Definition of fundamental quantities:

1. The quantities which are independent of one another are called fundamental quantities.
2. It can neither be changed nor can be related to any other fundamental unit.

Name of fundamental quantities and their SI units:

S.No.	Quantity	Unit	Symbol
1	Length	metre	m
2	Mass	kilogram	kg
3	Time	second	s
4	Temperature	kelvin	K
5	Luminous Intensity	candela	cd
6	Electric Current	ampere	A
7	Amount of substance	mole	mol