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Online Tests
Physics 9th Class English Medium Unit 6 Online Test MCQs With Answers
Question # 1
How many components are there of a solar heating system?
Choose an answer
2
3
4
5
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Question # 2
If f = 40 N is applied and bus is move 1m than work is :
Choose an answer
40 J
60 J
80 J
No work
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Question # 3
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 # 4
If a body does work at the rate of 1 Js
-1
then its power will be:
Choose an answer
KW
1 MW
1 W
None of these
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Question # 5
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 # 6
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 # 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
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 # 9
If the direction of motion of the force is perpendicular to the direction of motion of the body, then work done will be:
Choose an answer
Maximum
Minimum
Zero
None of the above
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Question # 10
Energy cannot be destroyed however it can be converted into some other forms. This is known as:
Choose an answer
Law of heat exchange
Law of conservation of energy
Law of conservation of momentum
None of these
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Question # 11
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 # 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 work is negative if the angle between force and displacement is:
Choose an answer
0
°
45
°
90
°
180
°
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