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Gravitational Field.
The space surrounding a material body in which gravitational force of attraction can be experienced is called its gravitationa
Acceleration Due to Gravity.
The force of attraction exerted by the earth on a body is called gravitational pull or gravity.
The acceler
Newton's law of Gravitation.
Newton's law of gravitation states that every body in this universe attracts every other body with
Gravitational Potential.
At a point in a gravitational field potential V is defined as negative of work done per unit mass in shifting a test mass
Gravitational potential due to a spherical shell:
Outside shell:
Energy of Satellite.
When a satellite revolves around a planet in its orbit, it possesses both potential energy (due to its position against gravit
Kepler’s Laws of Planetary Motion.
Planets are large natural bodies rotating around a star(sun in case of milky way) in defi
Gravitational Potential Energy.
Orbital Velocity of Satellite.
Angular Momentum of Satellite.
Angular momentum of satellite L = mvr
⇒
Q1.Why is gravitational potential energy always negative?[1]
Pascal’s Law
This theory was given by Clausius in 1857
Postulates:- (1) Every gas is made up of extremely small particles called molecules. All the molecu
Formation of galaxies & solar system:
(1) The origin of universe occurred by Big-Bang theory, 20 million years ago.
(2) Our universe
Inertial and Gravitational Masses.
Inertial mass : It is the mass of the material body, which measures its inertia.
Force
A pull or push which changes or tends to change the state of rest or of uniform motion or directionof motion of any object is called force. F
Properties of colloidal solutions:-
The main properties of the colloidal solutions are discussed below:-
Physical properties:-
Escape Velocity.
The minimum velocity with which a body must be projected up so as to enable it to just overcome the gravitational pull, is known a
Geostationary Satellite.
The satellite which appears stationary relative to earth is called geostationary or geosynchronous satellite, communicatio
Time Period of Satellite.
It is the time taken by satellite to go once around the earth.
therefore &
Weightlessness.
The weight of a body is the force with which it is attracted towards the centre of earth. When a body is stationary with respect to
Test Details
Two identical spheres are placed in contact with each other. The force of gravitation between the spheres will be proportional to (R = radius of each sphere)
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