Atmospheric Pressure
The pressure of the atmosphere at any point is equal to the weight of a column of air of unit cross sectional area extending...
Variation of Pressure with Depth
Consider a fluid at rest in a container. In Fig.1 point 1 is at height h above a point 2.The pressures at points 1...
Pascal’s Law
Pascal’s Law states that: Pressure in a fluid at rest is same at all points which are at the same height. A change in...
Fluids
Fluids are those substances which can flow when an external force is applied to it. Liquids and gases are fluids. Fluids do not have...
Hooke’s Law
Hooke’s law states that the extension is proportional to the force or tension in a wire if the proportional limit is not exceeded. The constant of...
Stress-Strain relationship curve
Stress strain curve is used to understand the tensile strength of a given material. The given figure shows a stress-strain curve of a given...
Stress and Strain
The internal restoring force acting per unit area of a deformed body is called stress. If F is the force applied and A is...
Elastic Behavior of solids
A force which produces a change in the configuration of the object on applying it is called a deforming force.
...
Earth satellite
: A satellite is a body which is revolving continuously in an orbit around a comparatively much larger body.
The orbital speed of satellite is...
Gravitational potential
The gravitational potential at a point in a gravitational field is defined as the amount of work done in bringing a body of unit...