Question # 1

A satellite revolving around very close to Earth has speed nearly:

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8 kms^-1

5 kms^-1

10 kms^-1

100 kms^-1

The orbital speed of a low orbit satellite is:

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Zeri

8 ms^-1

800 ms^-1

8000 ms^-1

The unit of gravitational constnat is:

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Nm² kg

Nm²kg^-2

Nm²kg^-1

N - m²

The force with which earth attracts a body towards its center is equal to its

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Mass

Weight

Charge

Radius

S.I unit of G is:

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Nm^-2 kg²

Nm^-2Kg^-2

Nm²kg^-2

Nm²kg^-3

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

Moon is our satellite:

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Artificial

Permanent

Natural

Communication

Law of Gravitation is consistence with:

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1st Law of motion

2nd Law of motion

3rd Law of motion

Law of momentum

The value of 'g' on the surface of Mars:

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3.73 ms^-2

1.62 ms^-2

Zero

Constant

Value of g increases with the

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Increases in mass of the body

Increase in altitude

Decreases in altitude

None of the above

the value of gravitational field strength near the earth is ________ Nkg^-1.

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1.62

100

10

160

The mass of Earth is

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6 x 1018 kg

6 x 1020 kg

6 x 1022 kg

6 x 1024 kg

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

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29

27.3

30

21

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