Question # 1

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

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3

24

126

200

The useful unit of the angular displacement in SI unit is:

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Degree

Revolution

Radian

Metre

Centripetal force performs:

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Maximum work

Negative work

Positive work

None of these

The instantaneous acceleration of a body moving with constant speed in a circle:

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Remains constant

Is called centripetal acceleration

Tangential acceleration

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

One radian is:

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Greater than one degree

Less than one degree

Equal to one degree

None of these

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

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KHz

MHz

GHz

BHz

The number of "Earth stations" which transmit signals to satellites and receive signals from them are:

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3

24

126

200

Angular momentum is a:

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vector quantity

Imaginary quantity

Complex Quantity

Scalar Quantity

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

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3

24

126

200

A rotating body tends to be slower, when its angular acceleration is:

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Positive

Negative

Zero

Infinity

The useful unit of angular replacement in SI unit is:

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Degree

Revolution

Radian

Metre

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

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Along the tangent

Toward the centre

Away from the centre

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

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

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