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

Question # 1

The mass of Earth is

Choose an answer

6 x 1018 kg

6 x 1020 kg

6 x 1022 kg

6 x 1024 kg

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Question # 2

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

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1.62

100

160

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Question # 3

Earth revolves around the:

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Moon

Sun

Glaxy

None

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Question # 4

Value of g on mercury is ___________ ms^-2.

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25.94

3.7

8.87

1.62

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Question # 5

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 # 6

The Mars has value of g

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25.94 m/sec2

3.73 m/sec2

1.62 m/sec2

8.87 m/sec2

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Question # 7

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

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6.67 x 10^-21

6.67 x 10^-11

6.67 x 10^-23

6.67 x 10¹¹

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Question # 8

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

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Question # 9

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

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Mass

Weight

Charge

Radius

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Question # 10

If the distance is doubled between two masses. The gravitational force will decrease:

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4 times

2 times

One forth

One third

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Question # 11

In SI units, the value of gravitational constant 'G' is

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6.673 x 10-9 Nm2 kg-2

6.673 x 10-10 Nm2 kg-2

6.673 x 10-11 Nm2 kg-2

6.673 x 10-12 Nm2 kg-2

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Question # 12

GPS system consists of earth satellites:

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Question # 13

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 g1

1/4 g

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