ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

Question # 1

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 # 2

The energy stored int he water of the dam is:

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

Question # 3

The work done in moving a body between two points in a conservation field is independent of the:

Direction A
Force applied B
Path followed by the body C
Power D

Question # 4

Watt x second is unit of:

Force A
Work B
Power C
None of these D

Question # 5

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 # 6

When a wall is pushed by a person very strongly, he has done:

Maximum work A
Zero work B
Positive work C
Negative work D

Question # 7

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

Potential A
Chemical B
Mechanical C
sound and heat D

Question # 8

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 # 9

Work done is maximum when angle between force and displacement is

0° A
90° B
180° C
None of these D

Question # 10

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

Conservative filed A
Non-conservative field B
Electric field C
None of these D

Question # 11

Work has the dimension as that of:

Torque A
Angular momentum B
Linear momentum C
Power D

Question # 12

The unit of work in CGS system is

Joule A
Erg B
Dyne C
Watt D

Question # 13

Which one is conservative force

Electric force A
Frictional force B
Normal force C
Air resistance D

Question # 14

The work done moving a body between two points in a conservation field is independent of the:

Direction A
Force applied B
Path followed by the body ` C
Power D

Question # 15

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 the direction of motion will be:

60° A
90° B
30° C
0° D

Question # 16

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

Minimum work A
Maximum work
B
Zero work C
Negative work D

Question # 17

Work is a:

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

Question # 18

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

0° A
30° B
60° C
90° D

Question # 19

The ultimate source of money sources of energy is:

Sun A
Air B
Water C
Petroleum D

Question # 20

Maximum work is done when force and displacement are

Parallel A
Antiparallel B
Perpendicular C
Both a and b D

Question # 21

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

11 m/sec A
11 km/sec B
11 km/hour C
11 cm/sec D

Question # 22

The types of mechanical energy is/are:

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

Question # 23

Area under the force displacement graph gives

Power A
Work B
Heat C
Energy D

Question # 24

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 # 25

The work done on the body will be zero if:

No force is applied on the body A
Force is applied but no displacement B
Angle between F(force) and d(displacement) is 90° C
All of these are correct D

Question # 26

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 # 27

The Space around the Earth within which it exerts a force of attraction on other bodies is known as

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

Question # 28

Work is a

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

Question # 29

A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, Which makes an angle of 60° with the horizontal. The work done by the boy is:

1.25 J A
12.5 J B
125 J C
None of these D

Question # 30

Power is a :

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

Sr.#	Question	Answer
1	The work done in moving a body between two points in a conservative field is independent of the	A. Direction B. Force applied C. Path followed by the body D. Power
2	Power is a :	A. Vector quantity B. Base quantity C. Scalar quantity D. None of these
3	Work done is independent of path followed in _______	A. Gravitational field B. Magnetic field C. Electric field D. All of these
4	The field in which work done in moving a body between two points depends upon the path followed is called:	A. Conservative field B. Non-conservative field C. Electric field D. None of these
5	Which force is not a conservative force:	A. Frictional force B. Gravitational force C. Electric force D. Elastic spring force
6	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. 0.5 J B. 2 J C. 0.25 J D. 1 J
7	The unit of work in CGS system is	A. Joule B. Erg C. Dyne D. Watt
8	When velocity of moving body is doubled, the quantity which is also doubled is its:	A. K.E. B. Acceleration C. Momentum D. P.E.
9	Tick the conservation force:	A. Tension in a string B. Air resistance force C. Elastic spring D. Frictional force
10	The types of mechanical energy is/are:	A. Kinetic energy B. Potential energy C. Both of these D. None of these

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