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

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 # 2

1 J = ________?

Question # 3

Which one is conservative force

Question # 4

Work is a Quantity

Question # 5

The dimensions of work

Question # 6

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

Question # 7

Power is a :

Question # 8

Work done is maximum when angle between force and displacement is:

Question # 9

When two protons are brought are brought closer potential energy of both of them:

Question # 10

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 # 11

The types of mechanical energy is/are:

Question # 12

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

Question # 13

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:

Question # 14

A solar cell is made from:

Question # 15

Maximum work is done when force and displacement are

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The work performed on an object does not depend on:
A. Force applied
B. Angle at which force is inclined to the displacement
C. Initial velocity of the object
D. Displacement
2 Work is a scalar product of
A. Force, Velocity
B. Velocity, Displacement
C. Force, Displacement
D. Force, Momentum
3 The energy stored int he water of the dam is:
A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
4 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
5 Work is a
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
6 The types of mechanical energy is/are:
A. Kinetic energy
B. Potential energy
C. Both of these
D. None of these
7 Work done by the force of friction is always
A. Positive
B. Zero
C. Negative
D. Maximum
8 A solar cell is made from:
A. Iron
B. Silicon
C. Germanium
D. Copper
9 Work has the dimensions as that of
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
10 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

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