ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

Question # 1

Area under the force displacement graph gives

Power A
Work B
Heat C
Energy D

Question # 2

In the force applied is parallel to the direction of motion, then work done is:

Maximum A
Minimum B
Zero C
None of these D

Question # 3

Work done in lower and bucket into the well is:

Zero A
Positive B
Negative C
None of these D

Question # 4

Work is a scalar product of

Force, Velocity A
Velocity, Displacement B
Force, Displacement C
Force, Momentum D

Question # 5

The work performed on an object does not depend on:

Force applied A
Angle at which force is inclined to the displacement B
Initial velocity of the object C
Displacement D

Question # 6

Which force is not a conservative force?

Frictional force A
Gravitational force B
Electric force C
Elastic spring force D

Question # 7

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done is 25J. the angle which the force makes with the direction of motion will be:

60° A
90° B
30° C
0° D

Question # 8

Escape velocity from surface of Moon as compared to that from Earth surface is:

Greater A
Smaller B
Equal C
None of thes D

Question # 9

Work is always done on a body when:

A force acts on it A
It moves through certain distance B
None of A and B is correct C
Both A and B is correct D

Question # 10

A field in which the work done is moving a body along closed path is zero is called:

Nuclear filed A
Conservative field B
Gravitational field C
Non-conservative field D

Question # 11

When velocity of moving body is doubled, the quantity which is also doubled is its:

K.E. A
Acceleration B
Momentum C
P.E. D

Question # 12

The consumption of energy by a 60 W bulb in 2 minutes is:

2 watt-hour A
120 watt-hour B
30 watt-hour C
None of these D

Question # 13

Energy stored in the spring of a watch is called

Potential energy A
Kinetic energy B
Nuclear energy C
Elastic potential D

Question # 14

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

2 J A
0.25 J B
1 J C
0.5 J D

Question # 15

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:

+5 X 10¹J A
+5 X 10²J B
+5 X 10³J C
+5 X 10⁴J D

Question # 16

When two protons are brought are brought closer potential energy of both of them:

Increases A
Decreases B
Remains same C
None of these D

Question # 17

Work done is maximum when angle between force and displacement is:

0° A
90° B
180° C
None of these D

Question # 18

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

Potential A
Chemical B
Mechanical C
sound and heat D

Question # 19

Work done is maximum when angle between force and displacement is:

0° A
90° B
180° C
None of these D

Question # 20

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

Nuclear field A
Conservative field B
Electric field C
Gravitational field D

Question # 21

Work done on a body by gravity in lifting it up to certain height is

Maximum A
Minimum B
Zero C
Negative D

Question # 22

Work is a Quantity

Vector A
Scalar B
Non-physical C
None of these D

Question # 23

Work done is independent of path followed in _______

Gravitational field A
Magnetic field B
Electric field C
All of these D

Question # 24

If we draw a graph between d(along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis then area under this straight line represents:

Power A
Work B
Pressure C
None of these D

Question # 25

A 2 kg block is held 1 m above floor for 50 seconds. The work done is:

Zero A
10.2 J B
100 J C
980 J D

Question # 26

Work is a

Scalar quantity A
Vector quantity B
Base quantity C
None of these D

Question # 27

The energy stored int he water of the dam is:

Electric energy A
Kinetic energy B
Potential energy C
None of these D

Question # 28

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

Moon A
Sun B
Oceans C
Water D

Question # 29

Which force is not a conservative force:

Frictional force A
Gravitational force B
Electric force C
Elastic spring force D

Question # 30

Tick the conservative force

Tension in a string A
Air resistance B
Elastic spring C
Frictional force D

Sr.#	Question	Answer
1	If we draw a graph between d (along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis, then area under this straight line represents:	A. Power B. Work C. Pressure D. None of these
2	Work is a Quantity	A. Vector B. Scalar C. Non-physical D. None of these
3	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:	A. +5 X 10¹J B. +5 X 10²J C. +5 X 10³J D. +5 X 10⁴J
4	Which of the following type of force can do no work on the particle on which it acts:	A. Frictional force B. Gravitational force C. Electric force D. Centripetal force
5	The work performed on an object does not depend on:	A. Force applied B. Angle at which force is inclined to the displacement C. Initial velocity of the object D. Displacement
6	Tick the conservation force:	A. Tension in a string B. Air resistance force C. Elastic spring D. Frictional force
7	If we draw a graph between d(along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis then area under this straight line represents:	A. Power B. Work C. Pressure D. None of these
8	When the body is moves against the force of friction on a horizontal plane, the work done by the body is:	A. Positive B. Negative C. Zero D. None of these
9	The types of mechanical energy is/are:	A. Kinetic energy B. Potential energy C. Both of these D. None of these
10	The total work done in moving the body up and then down through the same height in a gravitational field is equal to:	A. mgh B. Its wight C. Weight X height D. Zero

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ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 4 Work and Energy

ECAT Pre General Science Physics Chapter 4 Work and Energy

Area under the force displacement graph gives

In the force applied is parallel to the direction of motion, then work done is:

Work done in lower and bucket into the well is:

Work is a scalar product of

The work performed on an object does not depend on:

Which force is not a conservative force?

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done is 25J. the angle which the force makes with the direction of motion will be:

Escape velocity from surface of Moon as compared to that from Earth surface is:

Work is always done on a body when:

A field in which the work done is moving a body along closed path is zero is called:

When velocity of moving body is doubled, the quantity which is also doubled is its:

The consumption of energy by a 60 W bulb in 2 minutes is:

Energy stored in the spring of a watch is called

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

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:

When two protons are brought are brought closer potential energy of both of them:

Work done is maximum when angle between force and displacement is:

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

Work done is maximum when angle between force and displacement is:

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

Work done on a body by gravity in lifting it up to certain height is

Work is a Quantity

Work done is independent of path followed in _______

If we draw a graph between d(along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis then area under this straight line represents:

A 2 kg block is held 1 m above floor for 50 seconds. The work done is:

Work is a

The energy stored int he water of the dam is:

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

Which force is not a conservative force:

Tick the conservative force

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