Question # 1

Angular velocity determines, How fast or, How slow a body is

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Accelerating

Vibrating

Rotating

Oscillating

The diver spins faster when moment of inertia becomes.

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smaller

Greater

Constant

Zero

A man of 1 kg is freefalling. The force of gravity is

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1 N

9.8 N

0.5 N

Zero

The relation between the speed and hoop can be written as

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2

4

1/2

1/4

If a rocket is accelerating upward with an acceleration of 2 g, an astronaut of weight, mg in the rocket shows apparent weight.

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Zero

Mg

2 mg

3 mg

Angular momentum has the same unit as

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Impulse x distance

Power x time

Linear x time

work x frequency

The weight of an object an elevator moving down with an acceleration of 9.8 m/s2 will becomes

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Half

Double

Unchanged

Zero

The work done by centripetal force is

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(-)ve

(+)ve

Maximum

Zero

An elevator is moving up with an acceleration equal to 'g' An apparent weight of the body in an elevator is.

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Zero

Equal to real weight

2 mg

3 mg

Which one of the following force cannot do any work on the particle on which it acts.

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Fractional force

Gravitational force

Electrostatic force

Centripetal force

Satellites are the objects that orbit around the

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Moon

Sun

Earth

Star

Artificial gravity can be created in the space ship by

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Revolving around the earth

Spinning around its own axis

Increasing its velocity

Decreasing it svelocity

A man of mass 5 kg is falling freely, the fore acting on it will be

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5 N

9.8 N

19.6 N

49 N

The value of angular momentum is maximum when 0 is

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90^o

60^o

75^o

45^o

The artificial satellites are held in orbits by

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Gravitational force

Electric force

Magnetic force

All of these

Which is unimportant in describing the satellites orbit.

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Distance of satellite from earth's center

Gravitational constant G

Mass of satellite

Mass of earth

The product of rotational inertial 'I' and angular velocity ' w' is equal to.

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Torque

Linear momentum

Angular momentum

Force

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

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Mass of body

Velocity of a body

Tension in the string

Centripetal acceleration

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Physics ICS Part 1 Chapter 5 Online Test MCQs With Answers

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