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

Work done is lowering the bucket into the well is:

Question # 2

The work performed on an object does not depend on

Question # 3

A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, Which makes an angle of 60° with the horizontal. The work done by the boy is:

Question # 4

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

Question # 5

Work has a dimension as that of:

Question # 6

Work done is independent of path followed in _______

Question # 7

A solar cell converts energy of the Sun into:

Question # 8

The unit of work in CGS system is

Question # 9

Energy stored in the spring of a watch is called

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

Work done by the force of friction is always

Question # 12

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

Question # 13

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 # 14

The types of mechanical energy is/are:

Question # 15

Work is product of:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
3 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°
4 Work is a Quantity
A. Vector
B. Scalar
C. Non-physical
D. None of these
5 A labourer carrying a distance a load on his head moves from 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
6 Work done is lowering the bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
7 When a falling body hits ground, its KE changes to _____ energy.
A. Potential
B. Chemical
C. Mechanical
D. sound and heat
8 Tick the conservation force:
A. Tension in a string
B. Air resistance force
C. Elastic spring
D. Frictional force
9 The energy stored int he water of the dam is:
A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
10 Which one is conservative force
A. Electric force
B. Frictional force
C. Normal force
D. Air resistance

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