ECAT Pre Computer Science Chapter 4 MCQ Test With Answer

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

Try The MCQ's Test For ECAT Physics Chapter 4 Work and Energy

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ECAT Physics Chapter 4 Work and Energy

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Question # 1

Work is product of:

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

Work is a:

Question # 7

When a body moves against the force of friction on a horizontal plane, the work done by the body is:

Question # 8

Work is always done on a body when:

Question # 9

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:

Question # 10

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

Question # 11

The ultimate source of money sources of energy is:

Question # 12

The work performed on an object does not depend on:

Question # 13

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

Question # 14

The power of an electric generating station is expressed in:

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
2 A field in which the work done is moving a body along closed path is zero is called:
A. Nuclear filed
B. Conservative field
C. Gravitational field
D. Non-conservative field
3 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
4 A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, which makes and angle of 60° with the horizontal. The work done by the boy is:
A. 1.25 J
B. 12.5 J
C. 125 J
D. None of these
5 The work done on the body will be zero if:
A. No force is applied on the body
B. Force is applied but no displacement
C. Angle between F(force) and d(displacement) is 90°
D. All of these are correct
6 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
7 When a wall is pushed by a person very strongly, he has done:
A. Maximum work
B. Zero work
C. Positive work
D. Negative work
8 Energy stored in the spring of a watch is called
A. Potential energy
B. Kinetic energy
C. Nuclear energy
D. Elastic potential
9 The consumption of energy by a 60 W bulb in 2 minutes is:
A. 2 watt-hour
B. 120 watt-hour
C. 30 watt-hour
D. None of these
10 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:
A. 60°
B. 90°
C. 30°
D. 0°

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