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9th Class Physics English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Which is not an example of torque?
Choose an answer
Opening a nut
Door opening
Picking up a toy
All of them
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Question # 2
Weight is measured by:
Choose an answer
Spring balnce
Measuring cylinder
Physical balnce
None of these
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Question # 3
The mathematical formula of thermal conductivity is
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k =Q/t x L/A (T1 - T2)
k =Q/t x L/A (T1 + T2)
k =t/Q x L/A (T1 - T2)
k =2Q/t x L/A (T1 + T2)
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Question # 4
The energy store in an atom or molecule due to intermolecular force is:
Choose an answer
Kinetic energy
Potential energy
Internal energy
G.P.E
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Question # 5
The unit of strain is:
Choose an answer
Nm
-2
Pa
Newton
None
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Question # 6
The rate at which various surface absorb heat depends upon:
Choose an answer
Nature of surface
Nature of liquid
Radiation
Emission & absorption
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Question # 7
According to law of conservation of energy increases in P.E is equal to:
Choose an answer
Increase K.E
Decrease in K.E
Decrease in P.E
None
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Question # 8
Water starts boiling at:
Choose an answer
80 °C
100 °C
90 °C
101 °C
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Question # 9
The conduction is due to:
Choose an answer
They have high boiling point
Vibration of atoms
They have high melting point
None of above
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Question # 10
Amount of heat that flows in unit time is called:
Choose an answer
Rate of flow of heat
Q/t
Conductivity
Both A and B
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Question # 11
Rate of change of momentum is equal to:
Choose an answer
Mass
Torque
Weight
Force
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Question # 12
The radiation from sun is:
Choose an answer
Alpha
Gamma
Radio
Ultraviolet
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Question # 13
The numebr .00580 is scientific notation is.
Choose an answer
5 .80 x 10
5
5 .80 x 10
-4
5 .80 x 10
-3
5 .80 x 10
-2
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