Question # 1

Velocity of the body moving in upward direction from the contre of the earth.

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Increases

Decrease

Remain constnat

None of these

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 orbital speed of a low orbit satellite is

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Zero

8 ms-1

800 ms-1

8000 ms-1

Moon is nearly _________ km away from earth.

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6 x 10²⁴

380000

199.62 km

30000

The Earth attracts a body with a force equal to its:

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Velocity

Gravity

Weight

Mass

The altitude of geostationary orbits in which communication satellites are launched above the surface of the Earth is

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850 km

1000 km

6400 km

42,300 km

The value of g is maximum at:

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Mountains

Maximum height

Surface of earth

At 2R

The value of g increases with the :

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Increase in the mass of the body

Increase in altitude

Decrease in altitude

None of the above

Newton's law of gravitation resembles with

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1st law of motion

2nd law of motion

3rd law of motion

Law of gravitation

Moon is nearly km away from the Earth:

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3,80,000 km

3800 km

3,80 km

38 km

Gravitational force is a

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Contacted force

Non-contact force

Electrical force

Charging force

The mathematical form of law of gravitation is:

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F = GMe m/Re2

F = Gm1m2/r2

F = GMem1/Re2r2

None

The velocity of geostationary satellites with respect to Earth is

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Vo

2Vo

Zero

1/2 Vo

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9th Class Physics Chapter 5 Gracitation English Medium KPK Boards Online Mcqs MCQs With Answers

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