define force of gravitation.write four difference between G and g.
Answers
Explanation:
Gravitation is referred to the force acting between two bodies which can be represented as the F=(GM1M2)/R2 which means gravitation force is proportional to the product of the masses of the object 1 and object 2 and is inversely proportional to the square of the distance between them. The gravitational force between earth and any object is known as gravity.
Difference Between Gravitation and Gravity
Gravitation ; Gravity
It can be an attractive force or repulsive force ; It is always an attraction force
It is a universal force ; It is not a universal force
It is a weak force It is a strong force
The force is F=(GM1M2)/R2 (G= gravitational constant) ; The force is F=mg (g=acceleration due to gravity)
The direction of gravitational force lies in the radial direction from the masses ; The direction of the force of gravity is along the line joining the earth’s center and the center of the body. Its direction is towards the center of the earth.
Gravitation force is a vector quantity ; Gravity is a vector field
The force can be 0 when the separation between bodies is infinity ; The force of gravity can be 0 at the center of the earth
It requires two masses ; It requires only one mass
These were some difference between Gravitation and Gravity.
The force of attraction between all masses in the universe , especially the attraction of the earth's mass for bodies near it's surface is called force of gravitation.