Question # 1

What happens to the centripetal acceleration of a particle, when its speed is doubled and angular velocity is halved?

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halved

doubled

remain unchanged

becomes four times

In uniform circular motion, the factor that remains constant is

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Linear velocity

Centripetal force

Acceleration

speed

The angular analogue of linear displacement is called

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angular velocity

angular displacement

angular momentum

moment of force

The geostationary satellite is:

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Stationary

Rotating very fastly

Rotating with the period of earth

Rotating very slowly

The time period of revolution of geostationary satellite is

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1440 minutes

24 minutes

84 minutes

none of these

If a car moves with a uniform speed of 2 ms-1 in a circle of radius 0.4m. Its angular speed is

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4 rad. s^-1

1.6 rad. s^-1

5 rad. s^-1

2.8 ms^-1

A body of mass m tied to a string is moved in a vertical circle of radius r. the difference in tensions at the lowest point and the highest point is.

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2 mg

4 mg

6 𝑚g

8 mg

The ratio of the SI unit to the C)G.S unit of torque is.

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10⁷

10⁹

10⁰

10³

Two artificial satellites of unequal masses are revolving in a circular orbit around the earth with a constant speed. Their time periods:

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Will be different

Will depend on their masses

Will be same

Will depend upon the place of their projection

Torque is necessary for producing.

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angular speed

linear acceleration

angular acceleration

none of these

The radius of orbit of a geostationary satellite depends upon:

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Mass of satellite and its time period

Mass of satellite and mass of earth

Mass of earth, mass of satellite and time period of satellite

Mass of earth and time period of earth

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MDCAT Physics Chapter 3 Rotational and circular motion Online Test MCQs With Answers

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