Question # 1

The work done by a force, keeping an object in circular motion with constant speed is:

Choose an answer

Zero J

1 J

0.1 J

0.01 J

Work-energy principle states that work done on the body by applied force is equal to change in:

Choose an answer

Potential energy

Kinetic nergy

Linear momentum

None of these

The work performed on an object does not depend on

Choose an answer

Force applied

Angle at which force is inclined to the displacement

Initial velocity of the object

Displacement

When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is:

Choose an answer

0.5 J

2 J

0.25 J

1 J

The amount of coal used since 1945 up till now as compared to that used in the whole of history before that is

Choose an answer

Much more

Very small

No amount at all

None of these

The ultimate source of money sources of energy is:

Choose an answer

Sun

Air

Water

Petroleum

Watt x second is unit of:

Choose an answer

Force

Work

Power

None of these

The types of mechanical energy is/are:

Choose an answer

Kinetic energy

Potential energy

Both of these

None of these

Most of the geysers occur in:

Choose an answer

Volcanic regions

Magnetic regions

Northern region

None of these

Work is product of:

Choose an answer

Force and velocity

Heat and energy

Force and displacement

None of these

The power of an electric generating station is expressed in:

Choose an answer

Kilo Jule

Kilowatt-hour

Kilo watt

Watt

The tidal energy is produced due to rotation of Earth relative to:

Choose an answer

Moon

Sun

Oceans

Water

Which force is not a conservative force?

Choose an answer

Frictional force

Gravitational force

Electric force

Elastic spring force

The value of escape velocity of Earth planet comes out to be:

Choose an answer

11 m/sec

11 km/sec

11 km/hour

11 cm/sec

Work done is maximum when angle between force and displacement is

Choose an answer

0°

90°

180°

None of these

More Classes

Other Links

ECAT Physics Chapter 4 Work and Energy Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer