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

The Space around the Earth within which it exerts a force of attraction on other bodies is known as

Question # 2

Work is a always done on a body when

Question # 3

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

Question # 4

The work performed on an object does not depend on

Question # 5

A field in which the work done in moving a body along closed path is zero is called

Question # 6

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

Question # 7

Work done by the force of friction is always

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

When velocity of moving body is doubled, the quantity which is also doubled is its:

Question # 10

The ultimate source of money sources of energy is:

Question # 11

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

Question # 12

Which one is conservative force

Question # 13

The unit of work in CGS system is

Question # 14

Work is a:

Question # 15

Work is always done on a body when:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work is a
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
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:
A. 60°
B. 90°
C. 30°
D. 0°
3 Tick the conservation force:
A. Tension in a string
B. Air resistance force
C. Elastic spring
D. Frictional force
4 The work done in moving a body between two points in a conservation field is independent of the:
A. Direction
B. Force applied
C. Path followed by the body
D. Power
5 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
6 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
7 The consumption of energy by a 60 W bulb in 2 minutes is:
A. 2 watt-hour
B. 120 watt-hour
C. 30 watt-hour
D. None of these
8 When force and displacement are perpendicular to each other than work is equal to
A. Unity
B. Infinity
C. Zero
D. -Fd
9 Watt x second is unit of:
A. Force
B. Work
C. Power
D. None of these
10 Work done is lowering the bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these

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