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Online Tests
Physics 9th Class English Medium Unit 6 Online Test MCQs With Answers
Question # 1
Formula of Gravitational potential energy is:
Choose an answer
mgh
mg/h
1/2 mv
2
None of these
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Question # 2
1 hp is equal to :
Choose an answer
747 W
746 W
748 W
1000 W
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Question # 3
O maximum height the P.E of the body is:
Choose an answer
Zero
Maximum
Minimum
None of these
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Question # 4
From following, which one is a renewable source of energy?
Choose an answer
Coal
Gas
Sunlight
Petrolum
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Question # 5
Einstein's mass-energy equation relation is:
Choose an answer
E =1/2 mc
2
E =mc
2
E =m
2
c
E = 2 mc
2
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Question # 6
The large unit of work is:
Choose an answer
Kilowatt
Kilo joul
Mega joul
Both B and C
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Question # 7
The power of electric kettle is 500W and takes 2s to heat up, find heat generated?
Choose an answer
E = 250 w
E = 1000 w
E = 10000 J
1KJ
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Question # 8
What will be the magnitude of work if a force of 25N pulls a stone through a distance of 5 m in its directions
Choose an answer
25 J
50 J
75 J
125 J
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Question # 9
Fossils fuels are usually compound of:
Choose an answer
Carbon
Hydrogen
Carbon & Hydrogen
None of these
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Question # 10
The energy released int he form of nuclear radiations in addition to heat and light is called:
Choose an answer
Mechanical energy
Gravitational energy
Chemical energy
Nuclear energy
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Question # 11
The kinetic energy of the body of mass 1000 kg moving a speed of 20 ms
-1
will be:
Choose an answer
2 x 10
2
J
2 x 10
3
J
2 x 10
5
J
2 x 10
8
J
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Question # 12
The energy possessed by a body due to height is called:
Choose an answer
P.E
K.E
Both
None
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Question # 13
In which of the following state molecules don not leave their position?
Choose an answer
Solid
Liquid
Gas
Plasma
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