Chapter 9 – Force and Law of Motion

# CBSE Class 9 Science Chapter 9 - Force and Law of Motion

Brief Information: This chapter explains the 3 laws of motions with the help of diagrams and examples. Below are the 3 laws of motions:

1. First law of motion: An object continues to be in a state of rest or of uniform motion along a straight line unless acted upon by an unbalanced force.
2. Second law of motion: The rate of change of momentum of an object is proportional to the applied unbalanced force in the direction of the force.
3. Third law of motion: To every action, there is an equal and opposite reaction and they act on two different bodies.

Watch the video given below for understanding NCERT CBSE Class 9 Science Chapter 9 – Force and Law of Motion explanation in Hindi (for easy and better understanding)

Topics Covered:

• Force and Laws of Motion
• Balanced and Unbalanced Forces
• First Law of Motion
• Inertia and Mass
• Second Law of Motion
• Third Law of Motion
• Conservation of Momentum

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Chapter 9 – Force and Law of Motion
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