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9th Class Physics Chapter 5 Gracitation English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Gravitational force is a:
Choose an answer
Electric force
Magnetic force
Reactional force
Electromotive force.
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Question # 2
At the surface of the earth value of 'g' is measured by using formula:
Choose an answer
g=GMe/R
g = GMe/R
2
g = 2GMe/R
2
g = GMe/2 R
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Question # 3
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 # 4
The value of g increases with the :
Choose an answer
Increase in the mass of the body
Increase in altitude
Decrease in altitude
None of the above
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Question # 5
Orbital velocity v
o
=
Choose an answer
√gR
√RG
gR
gR
2
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Question # 6
Value of g on mercury is ___________ ms
-2
.
Choose an answer
25.94
3.7
8.87
1.62
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Question # 7
Moon complete it's one revolution around earth is days:
Choose an answer
22
23
27.3
25
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Question # 8
The speed of satellites in GPS is:
Choose an answer
8.73 kms
-1
3.87 ms
-1
32 ms
-1
3.87 kms
-1
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Question # 9
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 # 10
Speed of the satellites of GPS around earth is:
Choose an answer
3.87 ms
-1
387 kms
-1
3.87 kms
-1
38.7 kms
-1
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