Question # 1

Everybody in the universe attracts other body with a force which is

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Directly proportional to the product of their masses

Inversely proportional to the product of their masses

Directly proportional to the distance between them

Directly proportional to the square of the distance between them

The value of g on moon's surface is 1.6 ms^-2. What will be the weight of a a 100 kg body on the surface of the moon?

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100 N

160 N

1000 N

1600 N

The force exerted by earth on moon is :

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2.01× 1020 N

2.01× 1020 Kg

2.01× 1021 N

2.01× 1022 Kg m/s2

The value of gravitational constant is, G is:

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6.67× 10-10 Nm2/Kg2

6.67× 10-11 Nm2/Kg2

6.67× 10-11

None

Moon complete it's one revolution around earth is days:

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22

23

27.3

25

The gravitational field exist _________ the earth.

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Upward

All aorund

Downward

One direction

Moon complete its one revolution around the earth is ___________ DAYS:

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29

27.3

30

21

The earth also completes its one revolution about its axis in.

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1 Hours

6 Hours

13 Hours

24 Hours

The height of geostationary satellites with respect to Earth is

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36,300 km

40,300 km

30,300 km

42,300 km

If the distance is doubled between two masses. The gravitational force will decrease:

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4 times

2 times

One forth

One third

At the surface of Earth, the acceleration due to gravity 'g' is measured by using the formula

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g = GMe/R

GMe/R2

g = 2GMe/R2

g = GMe/2R

The mathematical form of law of gravitation is:

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F = GMe m/Re2

F = Gm1m2/r2

F = GMem1/Re2r2

None

The value of gravitational constant "G" is Nm² kg^-2

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6.67 x 10^-21

6.67 x 10^-11

6.67 x 10^-23

6.67 x 10¹¹

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