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

Question # 1

Number of factors on which torque depends :

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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

Sin 45^ois

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0.707

0.5

0.2

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Question # 4

The resultant vector of given vectors A and B is

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Question # 5

The number of forces that can be added by head to tail rule are

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Any Number

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Question # 6

Clockwise torque is taken:

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Positive

Negative

Neutral

Nil

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Question # 7

Two equal but unlike parallel forces having different lines of action produce:

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a Torque

a couple

Equilibrium

Netural equilibrium

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Question # 8

If Fx and Fy are rectangular components of vector F, then its direction is determined by the relation

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θ = sin-1 Fv/Fx

θ = tan-1 Fx/Fy

θ = tan Fx/Fy

θ = tan Fy/Fx

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Question # 9

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.

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Question # 10

Anticlockwise torque is taken:

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Negative

Neutral

Positive

Nil

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Question # 11

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 # 12

In a right angle triangle base is 4 cm and perpendicular is 3 cm length of diagonal will be:

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2 cm

5 cm

4 cm

6 cm

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Question # 13

Tan 𝜽 is equal to:

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Perpendicular/Hypotenuse

Base / Perpendicular

Base/Hyp

Perpendicular/Base

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