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What is the difference between gravity and gravitation?

Important Questions on Gravitation

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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 17
Two astronauts on the surface of moon can't talk to each other. Why?
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9th CBSE
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Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 18
Seema buys few grams of gold at the poles as per the instructions of one of her friends. She hands over the same when she meets her at the equator. Will the friend agree with the weight of gold bought? If not why?
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9th CBSE
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Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 19
Centripetal force is required for a body to move on a circular path. What provides this force to the moon to move around the earth? 
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9th CBSE
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Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 20
Gravitational force acts on all objects is proportional to their masses. Why does heavy object not fall faster than a higher object
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 21
Where is the acceleration due to gravity minimum and maximum on the surface of earth?
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 22
Calculate the weight of an astronaut mass of 80 kg on the surface of earth and on the surface of moon. Given that the acceleration due to gravity at moon is 16th that of earth.
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9th CBSE
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Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 23

Look at the diagram below. A sheet of paper and crumpled paper are dropped down from the same height and time is noted. Which paper will fall down first in open containers?

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MEDIUM
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 23

Look at the diagram below. A sheet of paper and crumpled paper are dropped down from the same height and time is noted. Which paper will 
fall down first in the closed container with vacuum inside the container?

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