Physics Past Paper Questions

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Q 171:The S.I unit of work is:
A
Newton
B
Joule
C
Watt
D
Pascal
Sahiwal, 2019
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Q 172:The value of mass of earth is:
A
6x1024 kg
B
6x1023 kg
C
6x1022 kg
D
6x1021 kg
Sahiwal, 2019
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Q 173:The work done in lifting a brick of mass 2 kg through a height of 5 m above the ground will be:
A
2.5 j
B
10 j
C
50 j
D
100 j
Sahiwal, 2019
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Q 174:The work done will be zero when the angle between the force and the distance is
A
180o
B
90o
C
60o
D
45o
Sahiwal, 2019
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Q 175:Thermal conductivity of air is:
A
245 Wm-1 K-1
B
105 Wm-1 K-1
C
0.026 Wm-1 K-1
D
0.6 Wm-1 K-1
Sahiwal, 2019
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Q 176:Unit of momentum is:
A
Ns-1
B
Ns
C
Kgms-1
D
Nm
Sahiwal, 2019
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Q 177:Which of the following devices converts light energy into electrical energy
A
Photo cell
B
Electric bulb
C
Electric cell
D
Electric generator
Sahiwal, 2019
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Q 178:Which of the following is a vector quantity?
A
Speed
B
Distance
C
Displacement
D
Power
Sahiwal, 2019
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Q 179:Which of the following is smallest quantity:
A
0.01 g
B
2 mg
C
100 mg
D
5000 ng
Sahiwal, 2019
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Q 180:Which of the substance is lightest one:
A
Copper
B
Mercury
C
Aluminum
D
Lead
Sahiwal, 2019
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Total MCQs: 745Page 18 of 75
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