“Gravitation” is a chapter in the NCERT science textbook for class IX. An object dropped from a height falls towards the earth; all the planets go around the Sun; and the moon goes around the earth. In all these cases, there must be some force acting on the objects, the planets and on the moon. Isaac Newton could grasp that the same force is responsible for all these. This force is called the gravitational force. Let’s learn about gravitation. Please go through the ppt to understand more about, • Thrust and Pressure • Pressure in fluids • Buoyancy • Why objects float or sink when placed on the surface of water? • Archimedes’ principle This PPT will help you grasp the concepts with ease and also help you do better in your class and exams. All the best!

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