Question # 1

if force on body on y-axis is 100N than x-axis is:

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1000 N

200 N

600 N

0 N

Sin 45^ois

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0.707

0.5

1

0.2

_____________ is related to earth attractive force.

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Centre of gravity

Acceleration

Velocity

Nil

.............. is example of vector.

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Length

Force

Mass

Time

The unit of torque is:

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N

Nm

m

m/n

Perpendicular / hypotenuse is equal to:

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Cosθ

Tanθ

Cosecθ

Sinθ

Cos 0°=

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0.5

1

0.866

0

Number of factors on which torque depends :

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2

3

4

5

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.

ΣF=0 is __________ condition of equilibrium:

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1st

2nd

Unstable

Stable

Things with _____________ area are more stable>

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Larger

Smaller

All

None of these

Unit of moment arm (L) is:

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Meter

Mole

Newton

Nm

The unit of torque is:

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Nm^-2

Ncm

Nm^-1

Nm

Forces on doubled arm spanner are called.

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Torque

Couple

Moment of force

Momentum arm

The formula of y component of force ' F ' is:

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F cos 𝜽

F Sin 𝜽

F tan 𝜽

Tan^-1 𝜽

If force is capable of rotation a body in clockwise direction it is :`

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Clockwise

Anticlockwise

It has no direction

Nil

The parallel forces which have same direction are called.

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Resutant force

Like parallel force

Unlike force

Null force

Base / Hypotenuse is called:

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Sin𝜽

Cos 𝜽

Tan 𝜽

Cot 𝜽

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

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