Quiz -MCQ-1-Class-10-Science-1-Chapter-1-Gravitation-MSBSHSE

1.

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Q. The SI unit of weight is the ……….

2.

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Q. The CGS unit of weight is the ……….

3.

True or False (1 Mark)

Q. The value of G changes from place to place.

4.

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Q. According to Kepler’s third law T² ∝ rⁿ, where n =……………..

5. Select Correct Option (1 Mark)

Q. The weight of a body is ……… at the poles.

6.

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Q. The ratio g_earth / g_moon is equal to ……….

7.

True or False (1 Mark)

Q. Mass is a vector quantity.

8.

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Q. If the earth shrinks to half of its radius, its mass remaining the same, the weight of an object on the earth will become ……… times.

9.

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Q. The SI unit of the universal constant of gravitation is ……….

10.

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Q. The gravitational force between two particles separated by a distance r varies as……….

11.

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Q. Outside the earth, the weight of a body varies as

12.

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Q. According to Kepler’s first law, the orbit of a planet is ……… with the Sun at one of the ……….

13.

True or False (1 Mark)

Q. At the centre of the earth, the value of the acceleration due to gravity becomes zero. 

14.

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Q. The acceleration due to gravity does not depend on the ……… of the body.

15.

True or False (1 Mark)

Q. If the separation between two particles is doubled, the gravitational force between the particles becomes half the initial force.

16.

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Q. The value of the acceleration due to gravity ………….. as we move from the equator to a pole.

17.

True or False (1 Mark)

Q. The CGS unit of the universal constant of gravitation is the dyne-cm²/gram².

18.

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Q. According to Kepler’s second law, the line joining the planet and the Sun ……… in equal intervals of time.

19.

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Q. In the usual notation, the acceleration due to gravity at a height A from the surface of the earth is ……….

20.

True or False (1 Mark)

Q. Weight is a vector quantity.

21.

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Q. The escape velocity of a body from the earth’s surface v_esc =

22.

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Q. Due to the …….. force, the earth attracts all objects towards it.

23.

True or False (1 Mark)

Q. The weight of a body is minimum at the poles.

24.

True or False (1 Mark)

Q. Outside the earth, g varies as 1/(R + h)².

25.

True or False (1 Mark)

Q. g has maximum value at the equator.