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

The energy stored int he water of the dam is:

Question # 2

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

Question # 3

Power is a :

Question # 4

Work has a dimension as that of:

Question # 5

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

Question # 6

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 # 7

Area under the force displacement graph gives

Question # 8

Which one is conservative force

Question # 9

Maximum work is done when force and displacement are

Question # 10

Work has the dimensions as that of

Question # 11

Which force is not a conservative force:

Question # 12

The consumption of energy by a 60 W bulb in 2 minutes is:

Question # 13

The angle between centripetal force and displacement of the body moving in a circle is:

Question # 14

SI Unit of work is

Question # 15

A 2 kg block is held 1 m above floor for 50 seconds. The work done is:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 When a wall is pushed by a person very strongly, he has done:
A. Maximum work
B. Zero work
C. Positive work
D. Negative work
3 The types of mechanical energy is/are:
A. Kinetic energy
B. Potential energy
C. Both of these
D. None of these
4 A solar cell converts energy of the Sun into:
A. Heat energy
B. Magnetic energy
C. Light energy
D. Sound energy
5 The work done on the body will be zero if:
A. No force is applied on the body
B. Force is applied but no displacement
C. Angle between F(force) and d(displacement) is 90°
D. All of these are correct
6 Work is a
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
7 1 J = ________?
A. 107erges
B. 10-7erges
C. 105erges
D. 10-5erges
8 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
9 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
10 Work is product of:
A. Force and velocity
B. Heat and energy
C. Force and displacement
D. None of these

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