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9th Class Physics Chapter 3 Dynamics English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
A body has mass 986 Kg than W = ............... .
Choose an answer
9860 kg
9860 N
9860 m/s2
Nil
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Question # 2
Rocket works on principle of ______________
Choose an answer
Action Reaction
Law of inertia
Mass energy
Nil
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Question # 3
Motion of the rocket is the example of which law?
Choose an answer
First law
Second law
Third law
Law of momentum
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Question # 4
The unit of π is:
Choose an answer
N
m
s
None
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Question # 5
Which is unitless quantity:
Choose an answer
Mass
Force
Inertia
Momentum
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Question # 6
If the force of 25 N is acting along the string to balance the weight then tension in string is
Choose an answer
25 N
50 N
Zero
None
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Question # 7
In which case it is easy for the tyre to roll over:
Choose an answer
Rough ground
Smooth ground
Same
None
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Question # 8
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 # 9
Which of the following relation is correct?
Choose an answer
F = m/a
F = m-a
F = ma
F = m + a
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Question # 10
When horse pulls a cart, the action is on the:
Choose an answer
Cart
Earth
Horse
Earth and cart
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Question # 11
Momentum is defined as the product of
Choose an answer
Mass and acceleration
Force and acceleration
Mass and velocity
Force and velocity
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Question # 12
The force which complete a body to move in circle is:
Choose an answer
Centripetal force
Centrifugal force
Perpendicular force
Tension
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Question # 13
A sugar bag of 1 kg has a momentum 25 kg m/s than its velocity is :
Choose an answer
v = 20 m/s
v = 25 kg
V = 25 m/s
v = 25 kg/ms-1
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