Question # 1

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

................. can be add algebraically.

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Scalar quantities

Vector

All

None

Clockwise torque is taken:

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Positive

Negative

Neutral

Nil

To find x component of force 'F' we use formul:

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F Sin 𝜽

F Cos 𝜽

F tan 𝜽

F/F1

PQ & RS are 2 parallel forces moving in same direction than they are called ............... forces.

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Like parallel

Unlike

Parallel

Nil

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

_____________ is related to earth attractive force.

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Centre of gravity

Acceleration

Velocity

Nil

A couple consists of how many forces:

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1

2

3

4

__________ forces have opposite direction:

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Unlike parallel

Parallel

Like parallel

None of these

It is useful to know the location of center of gravity of a body in problem dealing with

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Motion

Equilibrium

Charge

Velocity

Racing cars are made stable by :

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Increasing their speed

Decrease their mass

Lowering their center of gravity

Decreasing their width

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

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Is at its highest position

Is at the lowest position

Keep its height if displaced

Is situated at its bottom

The forces that are parallel to each other and have the same direction are called:

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Like parallel forces

Unlike parallel forces

Resultant forces

Net forces

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

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