Universe

                                      Universe

The most and important things in universe is Gravity (Gravitation).

Gravitation - Every body in the universe attracts every other body with a force called force of gravitation.

Gravitation is the force of attraction between any two bodies in the universe.

                * What is Gravity?

Answer - Gravity is special case of gravitation.

If one of the attracting bodies is the earth,then gravitation is called gravity.

Gravity is the force of attraction between the earth and any object lying on or near its surface.

Gravitational Field - Two bodies attract each other by the gravitational force even if they are not in direct contact.

This interaction is called at a distance.It can be best explained to the field concept,

1. Every mass modifies the space around it.This modified space is called gravitational field.
2. When any other mass is placed in this field,it feels a gravitational force of attraction due to its intractionwith the gravitational field.

The sapce  surrounding a material body within which its gravitational force of attraction can be experienced is called its gravitational field.

 --bhbj --------