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# Physics: Gravitation Practice: Can You Score 20/20?

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Question 1

The value of acceleration due to gravity

Question 2

A stone is dropped from the top of the tower. Its speed after it has fallen 20 m is (Take g = 10 ms-2)

Question 3

The value of ‘g’

Question 4

The gravitational force between two objects is F. If masses of both objects are halved without changing distance between them, then the gravitational force would become

Question 5

The force of attraction between two unit point masses separated by a unit distance is called

Question 6

The gravitational force between two bodies is F. If the masses of the bodies are halved and the distance between them is doubled, then the new gravitational force between them will be

Question 7

An astronaut lands on a new planet. She knows her own mass, m, and the radius of the planet, r. What other value must she know in order to find the mass of the new planet?

Question 8

If the distance between two masses is doubled, the gravitational attraction between them;

Question 9

Weightlessness experienced while orbiting the earth in space-ship, is the result of

Question 10

The second law of Kepler or the equal area law states that closer a planet is to the sun, the ________ it travels.

Question 11

Which statements show that there must be a force acting on earth and directed towards the sun?

Question 12

Why a person sitting in a chair in a satellite feels weightless?

Question 13

Which of the following is correct about Moon’s gravitation?

Question 14

Law of gravitation applies to _________.

Question 15

Universal gravitational constant is denoted by ____ .

Question 16

The dimensional formula for universal gravitational constant is

Question 17

The dimensional formula for universal gravitational constant is

Question 18

Gravitational force is maximum at which of the following places?

Question 19

Tides are caused by the gravitational pull of the

Question 20

When a body is lifted, the work done by the gravitational force is positive.
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