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Online Tests
9th Class Physics Chapter 4 Turning Effect of Forces English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
If Fx and Fy are rectangular components of vector F, then its direction is determined by the relation
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θ = sin-1 Fv/Fx
θ = tan-1 Fx/Fy
θ = tan Fx/Fy
θ = tan Fy/Fx
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Question # 2
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 # 3
When equal opposite forces are added then the resultant force is ______________
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Double
Triple
Zero
None of these
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Question # 4
Anticlockwise torque is taken:
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Negative
Neutral
Positive
Nil
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Question # 5
If force is capable of rotation a body in clockwise direction it is :`
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Clockwise
Anticlockwise
It has no direction
Nil
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Question # 6
The resultant vector of given vectors A and B is
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Question # 7
The measure of an object tendency to rotate about same axis is :
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Force
Moment arm
Torque
None of these
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Question # 8
Center of gravity of an irregular shaped body can be found with help of:
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Screw guage
Plumbline
Meter rode
Wedge
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Question # 9
A body is said to be in __________ equilibrium if after a slight tilt return to its previous position:
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Stable
Unstable
Neutral
None
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Question # 10
If base of a right angle triangle is 3 cm and perpendicular is 4 cm. What is length of perpndicular?
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3 cm
2 cm
5 cm
10 cm
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Question # 11
Cos 0
o
is
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0
2
1
0.5
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Question # 12
The number of forces that can be added by head to tail rule are
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2
3
4
Any Number
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Question # 13
Parallel forces are those whose:
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Times of action are parallel
Points of action are different
More than one forces
All of the given option
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