NCERT Solutions for Class 9 Science Unit 10
Gravitation Class 9
Unit 10 Gravitation Exercise Solutions
Earth attracts everything towards it by an unseen force of attraction. This force of attraction is known as gravitation or gravitation pull.
Universal Law of Gravitation Every object in the universe attracts other object by a force of attraction, called gravitation, which is directly proportional to the product of masses of the objects and inversely proportional to the square of distance between them. This is called Law of Gravitation or Universal Law of Gravitation.
The distance is considered between the centres of the objects.