Tuesday, February 26, 2019

UNITS AND MEASUREMENT

Physics Lacture series : Units and Measurement

Physics lecture on units and measurement
Physical Quantities :- Any quantity which can be measure is called physical quantity. eg- length, mass, time, temperature, etc.
on the basis of units and measurement physical quantities can be divide in
  • Fundamental quantities:- The physical quantities which do not depend on the other physical quantities are known as fundamental physical quantities. eg-  length, mass, electric current, time, temperature, etc.
  • Derived quantities :-  All the physical quantities which are not the fundamental physical quantities but are derived from it  are known as derived physical quantities. eg- work, force, pressure, area, volume, etc.