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 a always done on a body when

Question # 2

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

Question # 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:

Question # 4

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

Question # 5

Area under the force displacement graph gives

Question # 6

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

Question # 7

Power is a :

Question # 8

When force and displacement are perpendicular to each other than work is equal to

Question # 9

Work is product of:

Question # 10

Work is a:

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

Maximum work is done when force and displacement are

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The work done in 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
2 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
3 If work is done at the rate of 2 k j per second, then total work done is half an hour will be:
A. 0.5 Kwn
B. 2 Kwh
C. 1 Kwh
D. None of these
4 The amount of coal used since 1945 up till now as compared to that used in the whole of history before that is
A. Much more
B. Very small
C. No amount at all
D. None of these
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 in 25J. The angle which the force makes with the direction of motion will be
A. 60°
B. 90°
C. 30°
D. 0°
6 In the force applied to parallel to the direction of motion, then the work done is:
A. Positive
B. Negative
C. Zero
D. None of these
7 A solar cell is made from:
A. Iron
B. Silicon
C. Germanium
D. Copper
8 Work done is independent of path followed in _______
A. Gravitational field
B. Magnetic field
C. Electric field
D. All of these
9 If force and displacement are in opposite direction, the work done is taken as:
A. Positive work
B. Negative work
C. Zero work
D. Infinite work
10 A 100 kg car is moving at a speed of 10 m/sec and comes to rest after covering a distance of 50 m. the amount of work done against friction is:
A. +5 x 101J
B. +5 x 102J
C. +5 x 103J
D. +5 x 104J

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