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

A two Kg block is held 1 m above the floor for 50 seconds, the work done is:

Question # 2

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

Question # 3

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:

Question # 4

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

Question # 5

Watt x second is unit of:

Question # 6

Which force is not a conservative force?

Question # 7

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 # 8

The total work done in moving the body up and then down through the same height in a gravitational field is equal to:

Question # 9

Which of the following is not a unit of power:

Question # 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 the direction of motion will be:

Question # 11

Work is always done on a body when:

Question # 12

Work done in lower and bucket into the well is:

Question # 13

Work done is independent of path followed in _______

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
2 A solar cell is made from:
A. Iron
B. Silicon
C. Germanium
D. Copper
3 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
4 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:`
A. Minimum work
B.
Maximum work
C. Zero work
D. Negative work
5 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:
A. 0°
B. 30°
C. 60°
D. 90°
6 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
7 The dimensions of work
A. [MLT-1]
B. [MLT-2]
C. [ML2T-2]
D. [MLT]
8 The energy stored int he water of the dam is:
A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
9 The work done moving a body between two points in a conservation field is independent of the:
A. Direction
B. Force applied
C. Path followed by the body `
D. Power
10 Maximum work is done when force and displacement are
A. Parallel
B. Antiparallel
C. Perpendicular
D. Both a and b

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