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

The dimensions of work

Question # 2

Work done by the force of friction is always

Question # 3

Work has a dimension as that of:

Question # 4

The work done by a force, keeping an object in circular motion with constant speed is:

Question # 5

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

Question # 6

Work is always done on a body when:

Question # 7

Work is product of:

Question # 8

The work done by a force keeping an object in circular motion with constant speed is:

Question # 9

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

Question # 10

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:`

Question # 11

Work has the dimensions as that of

Question # 12

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 # 13

A solar cell is made from:

Question # 14

Work is a

Question # 15

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

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ECAT Class Physics Chapter 4 Important MCQ's

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 has the dimensions as that of
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
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 one is conservative force
A. Electric force
B. Frictional force
C. Normal force
D. Air resistance
5 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
6 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
7 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
8 The work done by a force keeping an object in circular motion with constant speed is:
A. Zero J.
B. 0.1 J
C. 1 J
D. 0.01 J
9 The energy stored int he water of the dam is:
A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
10 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:
A. Minimum Work
B. Maximum Work
C. Zero Work
D. Negative Work

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