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9th Class Physics Chapter 4 Turning Effect of Forces English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
It base of a right angled triangle is 3 cm and its perpendicular is 3 cm.Then its hypotenuse will be
Choose an answer
2 cm
4 cm
6 cm
5 cm
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Question # 2
__________ forces have opposite direction:
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Unlike parallel
Parallel
Like parallel
None of these
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Question # 3
Turning effect of a force is called:
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Torque
Moment
Couple
Torque and momentum
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Question # 4
The centre of gravity of uniform triangle is:
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Point of intersection of medians
On its vertex
On middle point of its axis
Point of intersection of diagonal
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Question # 5
The product of force and momentum arm is called:
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Couple arm
Torque
Rigid body
Axis of rotation
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Question # 6
If Fx and Fy are rectangular components of a vector F, then the magnitude of vector F is:
[LHR-04 1st G]
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Question # 7
If base of a right angle triangle is 3 cm and perpendicular is 2 cm. What is tan
θ
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0.7
1.5
2
3
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Question # 8
Tan 𝜽 is equal to:
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Perpendicular/Hypotenuse
Base / Perpendicular
Base/Hyp
Perpendicular/Base
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Question # 9
PQ & RS are 2 parallel forces moving in same direction than they are called ............... forces.
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Like parallel
Unlike
Parallel
Nil
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Question # 10
Things with _____________ area are more stable>
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Larger
Smaller
All
None of these
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Question # 11
The centre of gravity of hollow cylinder is the middle point on its:
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Curved side
axis
Bottom
On upper side
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Question # 12
_____________ is centre from which its mass is equally distributed:
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Cebtre of mass
Centre of gravity
All of above
None
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Question # 13
Two equal but unlike parallel forces having different lines of action produce:
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a Torque
a couple
Equilibrium
Netural equilibrium
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