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 done is maximum when angle between force and displacement is

Question # 2

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 # 3

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

Question # 4

Work done by the force of friction is always

Question # 5

Maximum work is done when force and displacement are

Question # 6

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

Question # 7

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 # 8

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

Question # 9

Watt x second is unit of:

Question # 10

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 # 11

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

Question # 12

Work is a Quantity

Question # 13

If force and displacement are in opposite direction, the work done is taken as:

Question # 14

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

Question # 15

Work done is independent of path followed in _______

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work done by the force of friction is always
A. Positive
B. Zero
C. Negative
D. Maximum
2 The types of mechanical energy is/are:
A. Kinetic energy
B. Potential energy
C. Both of these
D. None of these
3 A solar cell converts energy of the Sun into:
A. Heat energy
B. Magnetic energy
C. Light energy
D. Sound energy
4 The tidal energy is produced due to rotation of Earth relative to:
A. Moon
B. Sun
C. Oceans
D. Water
5 Energy stored in the spring of a watch is called
A. Potential energy
B. Kinetic energy
C. Nuclear energy
D. Elastic potential
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 SI Unit of work is
A. Nm-1
B. Joule
C. Nms
D. Both a and b
8 The tidal energy is due to gravitational pull of :
A. sun
B. moon
C. Mars
D. None of these
9 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
10 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

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