Question # 1

When a falling body hits ground, its KE changes to _____ energy.

Choose an answer

Potential

Chemical

Mechanical

sound and heat

A laborer carrying a load on his head moves from the rest on a horizontal road to another point where he comes to rest. He has done:

Choose an answer

Minimum Work

Maximum Work

Zero Work

Negative Work

The space around the earth within it exerts a force of attraction on other bodies of known as:

Choose an answer

Nuclear field

Conservative field

Electric field

Gravitational field

A 100 Kg car is moving at the speed of 10 m/sec and comes to rest after covering a distance of 50 m. The amount of work done against the friction is:

Choose an answer

+5 X 10¹J

+5 X 10²J

+5 X 10³J

+5 X 10⁴J

If force and displacement are in opposite direction, the work done is taken as:

Choose an answer

Positive work

Negative work

Zero work

Infinte work

1 J = ________?

Choose an answer

10⁷erges

10^-7erges

10⁵erges

10^-5erges

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

Tick the conservation force:

Choose an answer

Tension in a string

Air resistance force

Elastic spring

Frictional force

Work is a always done on a body when

Choose an answer

A force acts on it

It moves through certain distance

None of A or B is correct

Both A and B are correct

The field in which work done is moving body between two points depends upon the path followed is called:

Choose an answer

Conservative filed

Non-conservative field

Electric field

None of these

Power is a :

Choose an answer

Vector quantity

Base quantity

Scalar quantity

None of these

Which of the following types of force can do no work on the particle on which it acts

Choose an answer

Frictional force

Gravitational force

Electric force

Centripetal force

Work has the dimensions as that of

Choose an answer

Torque

Angular momentum

Linear momentum

Power

Area under the force displacement graph gives

Choose an answer

Power

Work

Heat

Energy

If force and displacement are in opposite direction, the work done is taken as:

Choose an answer

Positive work

Negative work

Zero work

Infinite work

A solar cell is made from:

Choose an answer

Iron

Silicon

Germanium

Copper

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

Choose an answer