Examples of Gravitational Force

Introduction to Examples of Gravitational Force

Gravity is the force by which every object is attracted to the center of the earth.All heavenly bodies possess gravity at different rates.The gravity in moon is 1/80th the gravity on earth.

Let us take a look at certain examples of gravity


Examples of Gravitational Force


It is because of gravity that everything falls down to earth.If you throw up something, it returns back to the ground too.Everything returns to the earth at a rate of 9.8m/sec^2.An apple falling from a tree is a classical example which led Sir Issac Newton to the discovery of gravity.In the same way gravitational force attracts all body with mass towards the center of the earth.A falling stone,A falling ball,a falling star etc may be sited as examples.

Gravitational force helps in movement.It is because of the gravitational force that we can walk,run,jump etc on the surface of the earth.As said earlier,moon has 1/80th of gravitational force as that of earth, so a person who has 80 kg on earth would experience a weight of 1 kg in  moon.This will make him float on the surface of moon.It is because of gravitational force that we move about on earth,it enables the movement of vehicles through the surface of earth too.If gravity was absent,then we would all float about on the surface of the earth.

Without gravity most of the games that we play today including football,soccer,running race,car race etc would not have been there and so does other day to day activities.It is the force of gravity which keeps the planets rotating and revolving around the sun,along with centripetal force.So gravity is indirectly responsible for the cause of day and night and also seasons.


Properties of Examples of Gravitational Force


Gravity is not uniform as it appears.Because the earth is lumpy and bumpy,the gravitational pull is stronger in some places than the others.For example,gravity in Rocky mountains is more than the gravity in Indian Ocean.

Gravity does not remain still too.It changes with ocean currents and magma flow beneath the earth crust,rainfall etc.