Core Science Physics For Class 9>Chapter 3 - Gravitation>EXERCISE>Q 22

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The radius of earth is $6400 km$ . At what height the value of $g$ will be $60 %$ .

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Important Questions on Gravitation

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Core Science Physics For Class 9>Chapter 3 - Gravitation>EXERCISE>Q 23

If radius of earth is $R$ , at what height from the surface of earth, the weight of the body becomes half?

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Core Science Physics For Class 9>Chapter 3 - Gravitation>EXERCISE>Q 24

A meteor passes near the earth at a height equal to

3

times the radius of earth. If

g

is the acceleration due to gravity on its surface, the acceleration experienced by the meteor in terms of

g

is.

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Core Science Physics For Class 9>Chapter 3 - Gravitation>EXERCISE>Q 1

What do you understand by the force of gravitation.

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Core Science Physics For Class 9>Chapter 3 - Gravitation>EXERCISE>Q 2

Is gravitational force attractive or repulsive?

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Core Science Physics For Class 9>Chapter 3 - Gravitation>EXERCISE>Q 3

Does the force of gravitation exist at all places in the universe? Explain your answer.

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Core Science Physics For Class 9>Chapter 3 - Gravitation>EXERCISE>Q 4

What do you understand by the statement that the gravitational constant is

6.67 \times 10^{- 11} {Nm}^{2} / {kg}^{2} ?

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Core Science Physics For Class 9>Chapter 3 - Gravitation>EXERCISE>Q 5

At which place on the surface of the earth, is the acceleration due to gravity (a) maximum, (b) minimum.

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Core Science Physics For Class 9>Chapter 3 - Gravitation>EXERCISE>Q 1

State Newton's universal law of gravitation.