Periodic Motion
A motion which repeats itself identically after a fixed interval of time is called periodic motion. e.g., orbital motion of the earth arou...
The branch of physics which deals with the study of transformation of heat energy into other forms of energy and vice-versa.
A thermodynamical system is s...
Assumptions of Kinetic Theory of Gases
Every gas consists of extremely small particles known as molecules. The molecules of a given gas are all identic...
The branch dealing with measurement of temperature is called thremometry and the devices used to measure temperature are called thermometers.
Heat
Heat...
Viscosity
The property of a fluid by virtue of which an internal frictional force acts between its different layers which opposes their relative motion is...
Centre of Mass
Centre of mass of a system is the point that behaves as whole mass of the system is concentrated at it and all external forces are acting o...
Work
When a force acts on an object and the object actually moves in the direction of force, then the work is said to be done by the force.
Work done b...
Inertia
The property of an object by virtue of which it cannot change its state of rest or of uniform motion along a straight line its own, is called ...