Physics Class 9 Chapter 4 MCQs Test

Class 9 Physics Chapter 4 TURNING EFFECT OF FORCES MCQs TEST:

Created on January 31, 2022 By Quizllc

Chapter 4 – Turning Effect of Forces

1 / 8

Racing cars are made stable by ?

Increasing their speed

Decreasing their mass

Lowering their centre of gravity

Decreasing their widih

2 / 8

A body is in neutral equilibrium when its centre of gravity?

Is at its highest position

Is at the lowest position

Keeps its height if displaced

Is situated at its bottom

3 / 8

A body is in equilibrium when its?

Acceleration is uniform

Speed is uniform

Speed and acceleration is uniform

Acceleration is zero

4 / 8

A couple is formed by ?

Two forces perpendicular to each other

Two like parallel forces

Two equal and opposite forces in the same line

Two equal and opposite forces not in the same line

5 / 8

A force of 10 N is making an angle of 30° with the horizontal. Its horizontal component will be?

4 N

5 N

7 N

8.7 N

6 / 8

The number of perpendicular components of forees are?

7 / 8

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

Any Number

8 / 8

Two equal but unlike parallel forces having different line of action produces?

Torque

Couple

Equilibrium

Neutral Equilibrium

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