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9th Class Physics Chapter 4 Turning Effect of Forces English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Cos 0
°
=
Choose an answer
0.5
1
0.866
0
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Question # 2
At what angle sin𝜽 and cos𝜽 has same values:
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30
o
45
o
60
o
90
o
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Question # 3
If base of a right angle triangle is 3 cm and perpendicular is 2 cm. What is tan
θ
Choose an answer
0.7
1.5
2
3
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Question # 4
Sin 45
o
is
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0.707
0.5
1
0.2
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Question # 5
................. can be add algebraically.
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Scalar quantities
Vector
All
None
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Question # 6
Two equal but unlike parallel forces having different line of action produce:
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A torque
A couple
Equilibrium
Neutral equilibrium
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Question # 7
Cos 0
o
is
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0
2
1
0.5
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Question # 8
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 # 9
If Fy = 4 N and Fx = 3 N , what is the magnitude of resolution of force.
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5 N
7 N
10 N
15N
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Question # 10
States of equilibrium are:
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2
3
4
5
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Question # 11
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 # 12
The force with which Earth attracts the object towards its center is known as
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Force
Weight
Mass
Gravity
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Question # 13
The parallel forces which have same direction are called.
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Resutant force
Like parallel force
Unlike force
Null force
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