Question # 1

Moon is our satellite:

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Artificial

Permanent

Natural

Communication

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

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100 N

160 N

1000 N

1600 N

The weight of a body is 100 N its weight on moon is :

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0.17 Kg

1.7 N

17 N

170 N

Gravitational constant depends on:

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Medium

Force

Weight

It does not depend son anything

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

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

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1 Hours

6 Hours

13 Hours

24 Hours

The speed of satellites in GPS is:

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8.73 kms^-1

3.87 ms^-1

32 ms^-1

3.87 kms^-1

The radius R of Earth is

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6.4 x 106 m

6.4 x 108 m

6.4 x 1010 m

6.4 x 1012 m

The value of g is maximum at:

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Mountains

Maximum height

Surface of earth

At 2R

A body is placed at height 'h' above the surface of the Earth.The value of 'g' is given by

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gh = Me/(R + h)2

gh = GMe/(R +h)2

gh = GMe/R2h

The radius R of the earth is:

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6 x 10¹⁸m

6.4 x 10⁶m

6.4 x 10⁸m

6.4 x 10¹²m

Weight of the body is due to the :

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Gravitation force

Centripetal force

Centrufugal force

All of the above

At the surface of the earth value of 'g' is measured by using formula:

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g=GMe/R

g = GMe/R²

g = 2GMe/R²

g = GMe/2 R

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