Question # 1

In case of planets centripetal force is provided by

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Coulomb's force

Electrostatic force

Gravitational force

Magnetic force

Which quantity of the following is dimensionless.

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Angular velocity

Centripetal force

Angular acceleration

Angular displacement

A body rotating with angular velocity of 2 radian/s and linear velocity is also 2 ms-1, then radius of circle is.

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1 m

0.5 m

4 m

2 m

A 60 kg man in an elevator is moving upward with an acceleration of 9.8 ms-2. The apparent weight of the man.

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Increase

Decreases

Remain constant

Becomes zero

The unit of rotational K.E. is

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rAD/SEC

Js

J

Kgm2

The SI unit of angular momentum is

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J.S-2

J.S-1

J.S

J.m

The angle between circumference of a circle and center is

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The diver spins faster when moment of inertia becomes.

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smaller

Greater

Constant

Zero

The time rate of change of angular displacements called.

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Linear velocity

Linear speed

Angular velocity

Angular speed

The direction of angular velocity is determined.

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Left hands rule

Head to tail rule

Right hand rule

General rule

The SI unit of angular displacement is.

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Degree

Revolution

Radian

Rotation

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Physics English Medium Fsc Part 1 Chapter 5 Online MCQs Test MCQs With Answers

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