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Important Questions on Gravitation

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 15

State one important effect produced by the buoyant force exerted by the water.

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 16

Where does a solid weigh more-in air or in a liquid ?

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 17

State Archimedes' principle.

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 1

Discuss three examples of pressure related to everyday life.

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 2

Explain, why a wide steel belt is provided over the wheels of an army tank.

MEDIUM

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 3

Explain, why wide wooden (or concrete) sleepers are kept below the railway line.

MEDIUM

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 4

Explain, why the tip of a sewing needle is sharp.

MEDIUM

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 5

When is the pressure on the ground more - when a man is walking or when a man is standing? Explain.