Question # 1

The orbital angular momentum is associated with the motion of a body along

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Straight path

Circular path

Curved path

Along any path

The relation between linear and angular velocity is

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Time rate of change of angular displacement is called

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Linear velocity

Angular velocity

Rotational velocity

Vibrational velocity

For angular momentum of system to remain constant, external torque should be.

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Small

Large

Zero

None

In rotational motion the analogous of mass is

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Angular acceleration

Torque

Moment of inertia

Angular momentum

The time rate of change of angular displacements called.

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Linear velocity

Linear speed

Angular velocity

Angular speed

the angular version of F= ma is

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L = 1w

pi = 1a

l = pi a

f = mv/t

Angular momentum has the same unit as

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Impulse x distance

Power x time

Linear x time

work x frequency

When a body is whirled in a horizontal circle by means of string, the centripetal force is supplied by

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Mass of body

Velocity of a body

Tension in the string

Centripetal acceleration

The direction of angular acceleration is

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Along the axis of rotation

Perpendicular to the axis of rotation

Opposite to axis of rotation

None of these

One revolution is equal to.

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90^o

180^o

360^o

270^o

Weight of a 60 kg man in moving elevator with constant acceleration of 1/2 f

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Zero

300 N

600 N

200 N

The work done by centripetal force is

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(-)ve

(+)ve

Maximum

Zero

The equations of angular motion hold only in case when the axis of rotation is

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Moving

Fixed

Both a and b

None of these

Angular displacement is

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Scalar quantity

Vector quantity

Basic quantity

None of these

Apparent weight of a man is in upward accelerated lift will

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Increases

Decreases

Remain same

Increases then decrees

The weight of the body at the centre of earth is

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Maximum

Minimum

Zero

Infinite

Angular acceleration is produced by

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Power

Torque

Pressure

Force

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Physics Fsc Part 1 Chapter 5 Online Test MCQs With Answers

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