Lecture 1 (part A) | Introduction | What is Physics?, Physical Quantities, Units, Dimensions

In this video, Mubarak Ukashat introduces physics in the most exciting way. He gives a very comprehensive definition of the subject and explains how the subject has evolved and merged with other branches of science, medicine and engineering. He introduces physical quantities and units. He explains the seven types of fundamental quantities and the units. He gives a full definition of all SI units of the seven fundamental quantities. He Introduces derived units and dimensional analysis. He further gives examples on the uses of dimensions in deriving and validating physical equations. He then explains orders of magnitude and discusses multiples and submultiples of units in details. The clarity and simplicity of his examples are beyond measure. His energy and charisma coupled to his sense of humor will definitely keep you awake throughout the whole lecture. Enjoy!