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

Which force is not a conservative force?

Question # 2

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 # 3

Work-energy principle states that work done on the body by applied force is equal to change in:

Question # 4

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 # 5

A body moves a distance of 10 m among a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:

Question # 6

The space around the earth in which its gravitational force acts on a body is called

Question # 7

The work performed on an object does not depend on

Question # 8

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:

Question # 9

Which force is not a conservative force:

Question # 10

Work is a

Question # 11

Maximum work is done when force and displacement are

Question # 12

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

Question # 13

Work done is independent of path followed in _______

Question # 14

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 # 15

The ultimate source of money sources of energy is:

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Sr.# Question Answer
1 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
2 When a falling body hits ground, its KE changes to _____ energy.
A. Potential
B. Chemical
C. Mechanical
D. sound and heat
3 Work has a dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
4 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
5 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
6 Work-energy principle states that work done on the body by applied force is equal to change in:
A. Potential energy
B. Kinetic nergy
C. Linear momentum
D. None of these
7 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°
8 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
9 A 2 kg block is held 1 m above floor for 50 seconds. The work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J
10 The ultimate source of money sources of energy is:
A. Sun
B. Air
C. Water
D. Petroleum

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