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Online Tests
Physics 9th Class English Medium Unit 6 Online Test MCQs With Answers
Question # 1
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 # 2
The kinetic energy of a body of mass 2 kg is 25J, its speed is
Choose an answer
5 ms-1
12.5 ms-1
25 ms-1
50 ms-1
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Question # 3
A body possesses if it is capable to do work:
Choose an answer
Energy
Power
Force
All
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Question # 4
If W stands for work, F stands for force and S stand for displacement, than mathematical work is defined as
Choose an answer
W = P x S
W = F x v
W = F x r
W = F x S
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Question # 5
The ability of a body to do work is known as
Choose an answer
power
energy
kinetic energy
potential energy
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Question # 6
Which pair of physical quantities has same SI unit?
Choose an answer
energy , power
power , work
energy , work
work , momentum
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Question # 7
How many components are there of a solar heating system?
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2
3
4
5
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Question # 8
The energy present in our food is:
Choose an answer
Mechanical energy
Gravitational potential energy
Chemical energy
Nuclear energy
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Question # 9
Mass-Energy equation was given by:
Choose an answer
Newton
Einstein
Joule
Pascal
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Question # 10
In Einstin's mass energy equation, c is the :
Choose an answer
Speed of sound
Speed of light
Speed if volume
None of these
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Question # 11
Formula of Power:
Choose an answer
P = wt
P = w/t
P = t/w
P = w/t
2
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Question # 12
The ratio of useful output to input energy is called:
Choose an answer
Power
Energy
Efficiency
Horse power
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Question # 13
Kinetic and potential energy are the kinds of energy:
Choose an answer
Chemical
Nuclear
Light
Mechanical
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