EASY
9th CBSE
IMPORTANT
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If a man jumps out from a boat, the boat moves

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Important Questions on Force and Laws of Motion

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Check Your Progress>Q 2
While flying, the birds push the air:
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Check Your Progress>Q 3
Rockets work on the principle of Newton's
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Check Your Progress>Q 4
Action and reaction act on
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Check Your Progress>Q 5
If an action is of 10 N, then the reaction will be of
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Check Your Progress>Q 6

Explain the following giving suitable reasons.

A jet aeroplane releases lot of hot gases before taking off.

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Check Your Progress>Q 6

Explain the following giving suitable reasons.

A swimmer pushes water backwards while swimming.

MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Check Your Progress>Q 7
Calculate the recoil velocity of a 4 kg gun which shoots a 0.05 kg bullet with a speed of 280 m/s.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Check Your Progress>Q 1
Write an experiment to verify Newton's third law of motion.