Question # 1

Earth revolves around the:

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Moon

Sun

Glaxy

None

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

Anything that rotates around a planet is called:

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Star

Sun

Moon

Satellite

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

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

The mathematical form of law of gravitation is:

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F = GMe m/Re2

F = Gm1m2/r2

F = GMem1/Re2r2

None

Moon is nearly _________ km away from earth.

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6 x 10²⁴

380000

199.62 km

30000

The first man who came up with the idea of gravity was?

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Issac Newton

Einstein

Faraday

J,S Joseph

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

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1.62

100

10

160

Gravitational force is a:

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Electric force

Magnetic force

Reactional force

Electromotive force.

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 Earth attracts a body with a force equal to its:

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Velocity

Gravity

Weight

Mass

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