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9th CBSE
IMPORTANT
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State two objects on which the gravitational force between two objects depends.

Important Questions on Gravitation

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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 16
Show that if the earth attracts two bodies A and B placed at the same distance from the centre of earth with the same force then their masses are equal.
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Practice Problems>Q 1
A stone is dropped from the top of a tower 44.1 m high. How long does it take and what is its velocity just before reaching the ground? (g = 9.8 ms-2)
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Practice Problems>Q 2
A stone dropped into a well hits the water in 3 seconds. Find the depth of the well and velocity with which the stone hits the water. Take g = 9.8 ms-2
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Practice Problems>Q 3
A stone after falling freely under gravity for 1 second strikes a pane of glass held horizontally. In breaking through the pane, the stone loses half of its velocity. How far will it fall in the next 2 seconds? (g = 9.80 ms-2).
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Practice Problems>Q 4
A ball is thrown vertically upward rises 250 metres and then begin to fall. With what velocity was it projected? (g=9.8 ms-2) 
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Practice Problems>Q 5
A ball thrown up vertically comes back to the thrower after 6 seconds. How high did it go? (g=9.8 ms-2)
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Practice Problems>Q 6
A ball thrown up is caught by the thrower after 4 s. How high did it go and with what velocity was it thrown? How far below its highest point was it 3 s after the start?
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Practice Problems>Q 7
A freely falling body starts from rest. What distance does it cover during the fourth second of its motion?