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9th Class Physics Chapter 4 Turning Effect of Forces English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
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 # 2
Cos 0
°
=
Choose an answer
0.5
1
0.866
0
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Question # 3
Parallel forces are those whose:
Choose an answer
Times of action are parallel
Points of action are different
More than one forces
All of the given option
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Question # 4
The forces that are parallel to each other and have the same direction are called:
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Like parallel forces
Unlike parallel forces
Resultant forces
Net forces
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Question # 5
A force of 10 N is making an angle of 30o with the horizontal. Its horizontal component will be
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4N
5N
7N
8.7N
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Question # 6
A couple consists of how many forces:
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1
2
3
4
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Question # 7
The turning effect of force is called:
Choose an answer
Torque
Parallel force
Equilibrium
Couple
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Question # 8
The number of perpendicular components of a force are
Choose an answer
1
2
3
4
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Question # 9
Cos 0
o
is
Choose an answer
0
2
1
0.5
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Question # 10
Unit of Resultant force is:
Choose an answer
Nm
-2
N.m
Nm
-1
N
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Question # 11
Things with _____________ area are more stable>
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Larger
Smaller
All
None of these
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Question # 12
Number of factors on which torque depends :
Choose an answer
2
3
4
5
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Question # 13
The formula of y component of force ' F ' is:
Choose an answer
F cos 𝜽
F Sin 𝜽
F tan 𝜽
Tan
-1
𝜽
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