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9th Class Physics Chapter 4 Turning Effect of Forces English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Tan 𝜽 is equal to:
Choose an answer
Perpendicular/Hypotenuse
Base / Perpendicular
Base/Hyp
Perpendicular/Base
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Question # 2
A force of 200 N is making an angle of 30
°. What is horizontal component?
Choose an answer
173.2 N
100 N
600 N
None of these
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Question # 3
PQ & RS are 2 parallel forces moving in same direction than they are called ............... forces.
Choose an answer
Like parallel
Unlike
Parallel
Nil
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Question # 4
Sin 45
o
is
Choose an answer
0.707
0.5
1
0.2
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Question # 5
The value of tan 45
o
is:
Choose an answer
0.5
1.732
1
0.5777
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Question # 6
If force is capable of rotation a body in clockwise direction it is :`
Choose an answer
Clockwise
Anticlockwise
It has no direction
Nil
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Question # 7
If the applied force is 'F' and its moment arm is 'r' then torque is defined as
Choose an answer
τ = rF
τ = r2F
τ = r + F
τ = 2rF
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Question # 8
The centre of gravity of hollow cylinder is the middle point on its:
Choose an answer
Curved side
axis
Bottom
On upper side
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Question # 9
If base of a right angle triangle is 3 cm and perpendicular is 4 cm. What is length of perpndicular?
Choose an answer
3 cm
2 cm
5 cm
10 cm
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Question # 10
.............. is example of vector.
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Length
Force
Mass
Time
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Question # 11
The resultant vector of given vectors A and B is
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Question # 12
_____________ is related to earth attractive force.
Choose an answer
Centre of gravity
Acceleration
Velocity
Nil
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Question # 13
Unit of Resultant force is:
Choose an answer
Nm
-2
N.m
Nm
-1
N
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