Question # 1

Centripetal acceleration is also called ________ acceleration

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Tangential

Radial

Angular

None of these

Conventionally the angular velocity is directed to an angle of:

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90° to the axis of rotation

30° to the axis of rotation

0° to the axis of rotation

None of the above

Angular momentum is a:

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vector quantity

Imaginary quantity

Complex Quantity

Scalar Quantity

The number of countries who manage the largest satellite system is:

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3

24

126

200

Centripetal acceleration is also called ______ acceleration

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Tangential

Radial

Angular

None of them

The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 0.8 m sec^-2comes out to:

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980 N

580 N

1380 N

Zero

When a body moves with a constant speed in a circle:

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No work is done on it

No acceleration is produced in the body

Velocity remains constant

None of these

When a body moves with a constant speed in a circle:

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No work is done on it

No acceleration is produced in the body

Velocity remains constant

None of these

In rotational motion, analogue of force F us called:

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Couple

Torque

Mass

Moment of intertia

Centripetal force performs:

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Maximum work

Negative work

Positive work

None of these

Direction of motion ______ in circular motion:

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Changes off and on

Changes continuously

Does not change

None of them

______ plays the same role during angular motion as played by the mass in linear motion

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Torque

Angular Momentum

Moment of a force

Moment of inertia

Angular velocity is a:

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Scalar quantity

Vector quantity

Complex quantity

None of these

When angular acceleration is positive, the body rotates:

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Slower

Slowest

Faster

None of these

Direction of motion _______ in circular motion

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Changes off and on

Changes continuously

Does not change

None of them

The center of mass of a sphere lies at:

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The axis of the sphere

Circumference of sphere

Center of the sphere

None of them

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Physics ECAT Pre Engineering Chapter 5 Circular Motion Online Test MCQs With Answers

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