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Online Tests
Physics 9th Class English Medium Unit 3 Online Test MCQs With Answers
Question # 1
Which parameter remain same every where?
Choose an answer
Force
Mass
Weight
Velocity
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Question # 2
Rolling friction is___________ then sliding friction :
Choose an answer
Greter
Less
Some
Half
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Question # 3
A string is stretched by two equal and opposite forces 10 N each. The tension in the string is
Choose an answer
Zero
5N
10N
20N
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Question # 4
The static fraction between wood and lather is _______________
Choose an answer
0.6
0.7
0.9
0.8
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Question # 5
The direction of momentum is
Choose an answer
opposite to motion
Along the velocity
Perpendicular to motion
None of these
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Question # 6
Friction is caused by :
Choose an answer
Shining surface
Rough surface
Polished surface
Nil
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Question # 7
A mass of a body:
Choose an answer
Decreases when accelerated
Increases when accelerated
Decreases when moving with velocity
None of the above
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Question # 8
The acceleration produced in a moving body is always in the direction of applied
Choose an answer
Velocity
Force
Speed
Momentum
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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
in isolated system the momentum after collision of two bodies.
Choose an answer
Increase
Constnat
Decrease
Zero
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Question # 11
A ball of mass 1 kg moving wih 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 # 12
Sliding friction can be converted into rolling friction by using
Choose an answer
Levers
Wedges
Ball bearings
Pulleys
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Question # 13
All divers need to wear seat belt because of effect of:
Choose an answer
Air resistance
Tensional
Push force
Gravitational
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