Question # 1

The amount of inertia of 10 kg hoop about the axis of rotation perpendicular to its plane having radius 5 m is

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50 kgm2

100 K gm2

150 K gm2

250 K gm2

The angle between circumference of a circle and center is

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the angular version of F= ma is

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L = 1w

pi = 1a

l = pi a

f = mv/t

The product of rotational inertial 'I' and angular velocity ' w' is equal to.

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Torque

Linear momentum

Angular momentum

Force

Close orbiting satellites orbit the earth at a height of about

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400 km

4000 km

400 m

400 cm

The relation between linear and angular velocity is

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A man of 1 kg is freefalling. The force of gravity is

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1 N

9.8 N

0.5 N

Zero

The SI unit of angular momentum is

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J.S-2

J.S-1

J.S

J.m

In case of planets centripetal force is provided by

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Coulomb's force

Electrostatic force

Gravitational force

Magnetic force

When a body moves in circular motion, the angle between linear and angular velocity is.

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180^o

90^o

60^o

75.3^o

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

Which of the following is not directed along the fixed axis of rotation.

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Angular displacement

Angular momentum

Centripetal acceleration

Angular acceleration

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

Which quantity of the following is dimensionless.

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Angular velocity

Centripetal force

Angular acceleration

Angular displacement

The direction of angular velocity of along the

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Tangent at that point

Axis of rotation

Radius towards the centre

Radius away from the centre

The value of of 'g' at the centre of the earth is

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Infinite

2 g

3 g

zero

Angular acceleration is produced by

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Power

Torque

Pressure

Force

If a body is moving in the counter clockwise direction the direction of angular velocity will be

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Toward the centre

Away from the centre

along the linear velocity

Perpendicular to both radius and linear velocity

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Physics Fsc Part 1 Chapter 5 Online Test MCQs With Answers

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