Work, Energy & Power

Introduction Much scientific invention has been directed towards designing machines that are beneficial to everyday life.

Stress & Strain

Introduction Ever wondered why, when iron rod can withstand more load, things made of glass or wood breaks easily? The answer lies in behaviour of materials to external loading.

Young’s Modulus

Introduction Young’s modulus is a numerical constant, named after the 18th-century English physician and physicist Thomas Young.


In this article, the fundamentals of electric charge, current, potential difference, resistance and conservation of charge are discussed.

Conservation Of Energy

Introduction Consider a scenario: When diesel is burned in a truck engine, some of the chemical energy stored in the form of liquid is converted into kinetic energy of the truck and some are wasted as thermal energy.


Introduction When a force acts on an object, the force may cause an object to move in a straight line.