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9th Class Physics English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Which of the following is produced in refrigerators by evaporation of a liquefied gas?
Choose an answer
Heating
Cooling
Freezing
Melting
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Question # 2
Rooms are heated using gas heaters by
Choose an answer
Conduction only
Convection and radiation
Radiation only
Convection only
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Question # 3
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 # 4
Formula of Gravitational potential energy is:
Choose an answer
mgh
mg/h
1/2 mv
2
None of these
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Question # 5
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 # 6
There are types of thermometer:
Choose an answer
1
2
3
4
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Question # 7
Hydraulic press is a machine which works on
Choose an answer
Hook's law
Archimedes principle
Pascal's law
Boyle's law
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Question # 8
Co-efficient of friction between wood and concrete.
Choose an answer
0.63
0.8
1
0.9
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Question # 9
The radius R of the earth is:
Choose an answer
6 x 10
18
m
6.4 x 10
6
m
6.4 x 10
8
m
6.4 x 10
12
m
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Question # 10
Waking on earth is the example of
Choose an answer
1st law of motion
Second law of motion
Third law of motion
Law of Momentum
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Question # 11
The product of force and displacement is called;
Choose an answer
Work
Efficiency
Power
Energy
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Question # 12
Mathematically, % efficiency is defined as & nbsp
Choose an answer
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 # 13
Which one of the following converts light energy into electrical energy:
Choose an answer
Electric Bulb
Electric Generator
Photocell
Electric generator
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