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

Question # 1

The value of 'g' on the surface of moon is:

Choose an answer

1.62 ms^-2

10 ms^-2

20 ms^-2

Zero

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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

S.I unit of gravitational field strength is:

Choose an answer

Nkg

Nkg^-1

Nkg^-2

Nkg^-3

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Question # 4

Magnetic force is an example of :

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Action at a distance

Force

Torque

Nil

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Question # 5

The value of gravitational constant "G" is Nm² kg^-2

Choose an answer

6.67 x 10^-21

6.67 x 10^-11

6.67 x 10^-23

6.67 x 10¹¹

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Question # 6

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

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2 g

1/2 g

1/3 g

1/4 g

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Question # 7

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

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Question # 8

The value of gravitational constant is SI unit is

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0.673 x 10-10

6.673 x 10-11

4.32 x 10-9

5.32 x 10-11

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Question # 9

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

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Question # 10

Moon is nearly _________ km away from earth.

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6 x 10²⁴

380000

199.62 km

30000

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Question # 11

Speed of the satellites of GPS around earth is:

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3.87 ms^-1

387 kms^-1

3.87 kms^-1

38.7 kms^-1

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Question # 12

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?

Choose an answer

100 N

160 N

1000 N

1600 N

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Question # 13

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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