Tag: Gravitation

  • Gravitation | Acceleration Due to Gravity | Class 9

    Importance of the Universal Law of Gravitation The universal law of gravitation successfully explained several phenomena which were believed to be unconnected. 1. It is the gravitational force between the sun and the earth which keeps the earth is uniform circular motion around the sun. 2. The gravitational force between the earth and the moon…

  • Gravitation | Introduction and Universal Law of Gravitation | Class 9

    INTRODUCTION When a body is held is hand and then released the body falls vertically downwards. Let us think as to why the body falls towards the earth? Why is it not going up? It was Sir Issac Newton posed this question and himself answer it. It is said that when Newton was sitting under…