Question # 1

Which one is related to angular motion:

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Moment of a force

Moment of inertia

Moment of momentum

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

Which of the following pairs does not have identical dimensions?

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Torque and energy

Energy and work

Momentum and impulse

Mass and moment of inertia

INTELSAT operates at frequencies 4, 6, 11, 14 having unit of

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KHz

MHz

GHz

BHz

Centripetal force performs:

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Maximum work

Negative work

Positive work

None of these

The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are

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3

24

126

200

One radian is:

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Greater than one degree

Less than one degree

Equal to degree

none of these

In rotational motion, analogue of force F us called:

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Couple

Torque

Mass

Moment of intertia

A car is turning around a corner at 10 m/sec as it travels along an arc of circle. If value of centripetal acceleration is 10 m/sec²in this case, find radius of the circular path:

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1 m

5 m

10 m

15 m

Conventionally the angular velocity is directed at 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

Moment of linear momentum is called.

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Moment arm

Moment of inertia

Inertia

Angular momentum

Conventional the angular Velocity is Directed at 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 above

A disc rolls down a hill and its speed at bottom is found to be 11.4 m/sec. Height of the hill is then nearly:

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10 m

12 m

13 m

15 m

When a body moves along a circular path with constant speed, it has an acceleration, which is always directed

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Along the tangent

Towards the centre

Away from the centre

None of them

A rotating wheel accelerates up to the value of 0.75 rev/sec²after 2 seconds of its start. Its angular velocity becomes:

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9.42 rad/sec

2.6 rev/sec

1.5 rev/sec

Both A and C

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

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