ECAT Pre Computer Science Chapter 4 MCQ Test With Answer

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 done is independent of path followed in _______

Question # 2

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 # 3

Area under the force displacement graph gives

Question # 4

A solar cell converts energy of the Sun into:

Question # 5

The amount of coal used since 1945 up till now as compared to that used in the whole of history before that is

Question # 6

Work is product of:

Question # 7

Work done by the force of friction is always

Question # 8

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

Question # 9

The energy stored int he water of the dam is:

Question # 10

Most of the geysers occur in:

Question # 11

Energy stored in the spring of a watch is called

Question # 12

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 # 13

The work done on the body will be zero if:

Question # 14

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 # 15

The tidal energy is due to gravitational pull of :

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 Work is always done on a body when:
A. A force acts on it
B. It moves through certain distance
C. None of A and B is correct
D. Both A and B is correct
3 Energy stored in the spring of a watch is called
A. Potential energy
B. Kinetic energy
C. Nuclear energy
D. Elastic potential
4 The space around the earth in which its gravitational force acts on a body is called
A. Electric Field
B. Gravitational field
C. Magnetic field
D. Conservative field
5 Maximum work is done when force and displacement are
A. Parallel
B. Antiparallel
C. Perpendicular
D. Both a and b
6 The work done by a force, keeping an object in circular motion with constant speed is:
A. Zero J
B. 1 J
C. 0.1 J
D. 0.01 J
7 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
8 The Space around the Earth within which it exerts a force of attraction on other bodies is known as
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
9 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
10 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

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