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Online Tests
Physics 9th Class English Medium Unit 3 Online Test MCQs With Answers
Question # 1
The maximum value of friction is:
Choose an answer
Kinetic friction
Static friction
Limiting friction
Dynamic friction
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Question # 2
A ball of mass 1 kg moving with velocity 2 ms-1, Its momentum will be
Choose an answer
1 Ns
2 Ns
0.5 Ns
4 Ns
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Question # 3
The product of mass and velocity is called ................. .
Choose an answer
Momentum
Force
Acceleration `
Nil
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Question # 4
A body jumps out of a moving bus. There is a danger for him to fall:
Choose an answer
Towards the moving bus
Away form the bus
In the direction of motion
opposite to the direction of motion
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Question # 5
1 N ___________
Choose an answer
1 kgms
-2
1 kg ms
-1
ms
-2
All
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Question # 6
Sliding friction can be changed into rolling friction by using:
Choose an answer
Ball bearing
Roller bearing
Both a and b
None of these
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Question # 7
___________ helps us to pick up objects.
Choose an answer
Force
Weight
Friction
Nil
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Question # 8
The Atwood machine can be used to find the acceleration due to gravity using the equation
Choose an answer
g = 2 (m1 x m2)/(m1 + m2) a
g = (m1 - m2)/(m1 + m2) a
g = (m1 + m2)/(m1 - m2) a
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Question # 9
Centripetal force always acts _________ to the motion:
Choose an answer
Opposite
Parallel
Perpendicular
Upward
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Question # 10
If radius of circle is doubled then centripetal acceleration becomes:
Choose an answer
Doubled
Three times
Four times
Half times
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Question # 11
Which of the following is unit of momentum?
Choose an answer
Nm
Kgms
-2
Ns
Ns
-1
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Question # 12
The approximate weight of 80 gram mass on the surface of Earth is
Choose an answer
800 N
80 N
0.8 N
8 N
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Question # 13
If the acceleration is 10 m/s2 and mass 10kg:
Choose an answer
F = 99N
F = 100 Kg
F = 100 m/s2
F =100 N
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