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Physics 9th Class English Medium Unit 5 Online Test MCQs With Answers

Question # 1

Weight of the body is due to the :

Choose an answer

Gravitation force

Centripetal force

Centrufugal force

All of the above

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Question # 2

The Mars has value of g

Choose an answer

25.94 m/sec2

3.73 m/sec2

1.62 m/sec2

8.87 m/sec2

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Question # 3

Gravitational constant depends on:

Choose an answer

Medium

Force

Weight

It does not depend son anything

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Question # 4

Value of g increases with the:

Choose an answer

Increase in mass of the body

Increases in altitude

decrease the altitude

None of the above

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Question # 5

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

Choose an answer

850 km

1000 km

6400 km

42,300 km

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Question # 6

The value of g at a height one Earth's radius above the surface of the

Earth is:

Choose an answer

2 g

1/2 g

1/3 g1

1/4 g

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Question # 7

Mass of earth is approximately _________

Choose an answer

3.7 x 10²⁴ kg

25.94 kg

6.0 x 10²²kg

6 x 10²⁴kg

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Question # 8

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

Choose an answer

850 km

1000 km

6400 km

42300 km

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Question # 9

The gravitational force has the ________ relation with the distance between two masses:

Choose an answer

Direct

Inverse

Constant

None

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Question # 10

Moon is a _____________ satellite.

Choose an answer

Natural

Artificial

Not manmade

Nil

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Question # 11

Weight of the body when we increase its height from earth's surface.

Choose an answer

Increase

Decrease

Remain constant

None

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Question # 12

S.I unit of gravitational field strength is:

Choose an answer

Nkg

Nkg^-1

Nkg^-2

Nkg^-3

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Question # 13

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

Choose an answer

0.17 Kg

1.7 N

17 N

170 N

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