Physics 1st Year Chapter 5 MCQs are up-to-date and are beneficial for both entry tests and board examinations. Students must prepare these again and again to have the best possible result.

## Physics 1st Year Chapter 5 MCQs

FSc 1st Year Physics Chapter 5 MCQs Notes are a helping material for all kinds of papers.

## Physics 1st Year Chapter 5 Circular Motion

1 revolution:

One radian is equal to degree:

The SI unit of angular momentum is Js. It can also be expressed as:

The rate of change of angular displacement is called:

Revolution/minute is the unit for:

Time rate of change of angular velocity is called:

The angular acceleration is produced by:

A particle is moving in a circle with constant speed. The direction of centripetal force will be:

Moment of inertia is equal to:

Moment of inertia is measured in:

The angular momentum is given by:

The period of a circular motion is given by:

The direction of linear velocity of body moving in a circle is:

The circumference subtends an angle:

The relation between linear and angular acceleration is:

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

Centripetal force performs work:

When a body moves in a circle of radius „r‟ with linear speed „V‟, its centripetal force is:

The angular acceleration of a body is directed:

The magnitude of the centripetal force on a mass m moving with angular speed 𝜔 in a circle of radius r is:

The dimension of angular acceleration is:

A gymnast sitting on stool with his arms out stretched lowers his arms:

When torque acting on a system is zero, which of the following will be constant:

The rotational K.E of any hoop of radius “r” is given by:

Unit of angular velocity in SI unit is:

Angular speed of daily rotation of earth is:

The rotational K.E of a body is given by:

The minimum velocity necessary to put a satellite into orbit is:

The apparent weight of a man in an ascending lift moving with acceleration “a”:

The apparent weight of a man in a lift moving down with an acceleration of 9.8 𝑚 𝑠^−2 is:

Which electromagnetic wave are used as medium in satellite communication system:

The minimum number of communication satellites required to cover the whole earth is:

The critical speed of an artificial satellite is:

Geo-stationary satellite completes one rotation around earth in:

In case planets the necessary acceleration is provided by:

The acceleration of a freely falling body is:

A man of weight W is standing on an elevator which is ascending with an acceleration a. The apparent weight of the man is:

If a body of mass 10 kg is allowed to fall freely, its weight becomes:

Pull of earth on a mass of 20 kg on the surface of the earth is:

Physics 1st Year Chapter 5 Circular Motion

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