Define impulse.

Important Questions on Force and Laws of Motion

MEDIUM

9th CBSE

IMPORTANT

Secondary Physics>Chapter 2 - Force and Laws of Motion>TEST YOURSELF>Q 8

Show that the impulse of a force is equal to change in momentum.

EASY

9th CBSE

IMPORTANT

Secondary Physics>Chapter 2 - Force and Laws of Motion>TEST YOURSELF>Q 9

State Newton's second law. Give an example.

EASY

9th CBSE

IMPORTANT

Secondary Physics>Chapter 2 - Force and Laws of Motion>TEST YOURSELF>Q 1

A piece of fishing line breaks if the force exerted on it is greater than $500 \mathrm{N}$. Will the line break if two people at opposite ends of the line pull it each with a force of $300 \mathrm{N}$? Give reason.

EASY

9th CBSE

IMPORTANT

Secondary Physics>Chapter 2 - Force and Laws of Motion>TEST YOURSELF>Q 2

Assess the following statement in terms of Newton's third law of motion. Object A rests on object B. The mass of object A is $100$ times that of object B, but even then, the force that A exerts on B is not greater than the force of B on A.

EASY

9th CBSE

IMPORTANT

Secondary Physics>Chapter 2 - Force and Laws of Motion>TEST YOURSELF>Q 3

State Newton's third law of motion.

EASY

9th CBSE

IMPORTANT

Secondary Physics>Chapter 2 - Force and Laws of Motion>TEST YOURSELF>Q 4

Give an example to illustrate Newton's third law of motion.

EASY

9th CBSE

IMPORTANT

Secondary Physics>Chapter 2 - Force and Laws of Motion>TEST YOURSELF>Q 5

The normal reaction and weight of a body are actually action-reaction pairs. Explain.

EASY

9th CBSE

IMPORTANT

Secondary Physics>Chapter 2 - Force and Laws of Motion>TEST YOURSELF>Q 6

State and explain Newton's third law of motion by examples.