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Online Tests
Physics 9th Class English Medium Unit 6 Online Test MCQs With Answers
Question # 1
If the velocity of the body becomes double then its kinetic energy will:
Choose an answer
Remain the same
Become double
Become four times
Become half
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Question # 2
The energy stored in a dam is:
Choose an answer
Electric energy
Potential energy
Kinetic energy
Thermal energy
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Question # 3
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 # 4
What will be the magnitude of work if a force of 25N pulls a stone through a distance of 5 m in its directions
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25 J
50 J
75 J
125 J
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Question # 5
The S.I unit of efficiency is :
Choose an answer
J/s
Nm
watt
It has no unit
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Question # 6
Stretched how has type of energy:
Choose an answer
K.E
mgh
P.E
Elastic P.E
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Question # 7
In a dam the water energy is called:
Choose an answer
Heat energy
Electrical energy
G.P.E
Mechanical enrgy
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Question # 8
If the force of 25 N pulls a stone through a distance of 5 cm in its direction the magnitude of work will be:
Choose an answer
5 J
125 J
175 J
200 J
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Question # 9
if a body of a mass 'm' is moving with velocity 'v' then its K.E. is given by
Choose an answer
K.E. = 1/2 mv
K.E. = 1/2 mv2
K.E. = mv2
K.E. = 1/2 m2v
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Question # 10
A crate is moved by pulling the rope attached to it. it moves 10 m on straight horizontal read by a force of 100 N. How much work will be done when the rope is making an angle of 30° with the road?
Choose an answer
5 Joules
86 Joules
707 Joules
866 Joules
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Question # 11
SI unit of work is:
Choose an answer
Joule
Coulomb
Ampere
Kelvin
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Question # 12
1 MJ=
Choose an answer
10
3
J
10
6
J
10
7
J
10
-3
J
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Question # 13
The energy stored in coal is
Choose an answer
Heat energy
Kinetic energy
Chemical energy
Nuclear energy
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