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9th Class Physics English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
S.I unit of pressure is Pascal which is equal to?
Choose an answer
10 Nm
-2
1 Nm
-2
10
2
Nm
-2
10
3
Nm
-2
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Question # 2
In Einstein's mass-energy equation ,c is the
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Speed of sound
Speed of light
Speed of electron
Speed of Earth
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Question # 3
Mathematically, % efficiency is defined as & nbsp
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Efficiency % required form or input/ total input energy x 100
Efficiency % required form or input/ total input energy x 100
Efficiency % input energy / output energy x 100
Efficiency % work / time x 100
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Question # 4
The work done will be zero when the angle between the force and the displacement is:
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45
°
60
°
90
°
180
°
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Question # 5
Unit of Resultant force is:
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Nm
-2
N.m
Nm
-1
N
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Question # 6
False celling is done to
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Lower the height of ceiling
Keep the roof clean
cool and room
Insulate the ceiling.
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Question # 7
1 KW (kilo Watt) is equal to:
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10
2
W
10
3
W
10
5
W
10
6
W
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Question # 8
When a stress on a body crosses the limit, called the?
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Elastic limit
Plastic limit
Failure point
Breaking point
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Question # 9
If the weight body is greater then tension then body will.
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Move upward
move downward
not move
None
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Question # 10
Conduction on heat occur at ________ rate in materials
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Different
Same
Both A and B
None
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Question # 11
The velocity and acceleration of the body moving with uniform speed in a circular path will be:
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In same direction
In opposite direction
Mutually perpendicular
Equal
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Question # 12
Good conductor is :
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Air
Wood
Iron
None
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Question # 13
A gradual large increase in atmospheric pressure shows:
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Pleasant condition
Rainy condition
Intense condition
Winday condition
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