Question # 1

Things with _____________ area are more stable>

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Larger

Smaller

All

None of these

The turning effect of force is called:

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Torque

Parallel force

Equilibrium

Couple

A body is in equilibrium when its:

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Acceleration in uniform

speed in uniform

Speed and Acceleration are uniform

Acceleration is Zero.

Consider a rigid body. As it rotates, its particles move in fixed

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Squares

Circles

Triangles

Rectnagles

The formula of torque is:

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L= F x E

E = F x t

t = F x L

E = F x L

The angle between rectangular components of a vector is

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0°

90°

180°

270°

The method used for addition of non-parallel forces is.

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Algebraic

Head to trail rule

Mathematical

Nil

After tilting if body come back to its original position then the body is in:

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Stable equilibrium

unstable equilibrium

Neutral equilibrium

Equilibrium

The unit of torque is:

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N

Nm

m

m/n

Tan 𝜽 is equal to:

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Perpendicular/Hypotenuse

Base / Perpendicular

Base/Hyp

Perpendicular/Base

ΣF=0 is __________ condition of equilibrium:

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1st

2nd

Unstable

Stable

Unit of moment arm (L) is:

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Meter

Mole

Newton

Nm

_____________ is centre from which its mass is equally distributed:

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Cebtre of mass

Centre of gravity

All of above

None

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Physics 9th Class English Medium Unit 4 Online Test MCQs With Answers

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