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 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:

Question # 2

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

Question # 3

SI Unit of work is

Question # 4

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

Question # 5

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

Question # 6

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

Question # 7

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

Question # 8

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

Question # 9

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

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 with the direction of motion will be:

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

Maximum work is done when force and displacement are

Question # 15

Work done is maximum when angle between force and displacement is

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work done along a closed path in a gravitational field is:
A. Maximum
B. Minimum
C. Zero
D. Unity
2 A solar cell converts energy of the Sun into:
A. Heat energy
B. Magnetic energy
C. Light energy
D. Sound energy
3 A solar cell is made from:
A. Iron
B. Silicon
C. Germanium
D. Copper
4 A 2 kg block is held 1 m above floor for 50 seconds. The work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J
5 Work done is independent of path followed in _______
A. Gravitational field
B. Magnetic field
C. Electric field
D. All of these
6 When a falling body hits ground, its KE changes to _____ energy.
A. Potential
B. Chemical
C. Mechanical
D. sound and heat
7 When two protons are brought are brought closer potential energy of both of them:
A. Increases
B. Decreases
C. Remains same
D. None of these
8 Area under the force displacement graph gives
A. Power
B. Work
C. Heat
D. Energy
9 Work done by the force of friction is always
A. Positive
B. Zero
C. Negative
D. Maximum
10 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

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