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9th Class Physics Chapter 4 Turning Effect of Forces English Medium KPK Boards Online Mcqs MCQs With Answers

Question # 1

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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Question # 2

A body is in equilibrium when its

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Acceleration is uniform

Speed is uniform

Speed and acceleration are uniform

Acceleration is zero

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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

Unit of Resultant force is:

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Nm^-2

N.m

Nm^-1

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Question # 5

If force is 200 N and length of spanner is 0.15 then torque will be:

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30 Nm

15Nm

20 Nm

10 Nm

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Question # 6

The single force that has the same effect as the combined effect of all the force to be added is called a

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Opposite force

Single force

Resultant force

Resultant vector

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Question # 7

Sin 45^ois

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0.707

0.5

0.2

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Question # 8

Complete equation fy/fx =

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Sin𝜽

Cos 𝜽

Tan𝜽

Cos ec𝜽

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Question # 9

If there is no change in state of motion, then the body is said be i:

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Rest

Motion

Equilibrium

Rest & motion

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Question # 10

When center of gravity is at the highest position body will be in:

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Neutral equilibrium

Stable equilibrium

Unstable equilibrium

None of these

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Question # 11

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 # 12

Cos 0^ois

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0.5

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Question # 13

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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