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 is a scalar product of

Question # 2

Work has the dimensions as that of

Question # 3

When a wall is pushed by a person very strongly, he has done:

Question # 4

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

Question # 5

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 # 6

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 # 7

Work done in lower and bucket into the well is:

Question # 8

If force and displacement are in opposite direction, the work done is taken as:

Question # 9

Most of the geysers occur in:

Question # 10

Work has the dimension as that of:

Question # 11

The work done on the body will be zero if:

Question # 12

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 # 13

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

Question # 14

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:`

Question # 15

Work done on a body by gravity in lifting it up to certain height is

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 When the body is moves against the force of friction on a horizontal plane, the work done by the body is:
A. Positive
B. Negative
C. Zero
D. None of these
2 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
3 If force and displacement are in opposite direction, the work done is taken as
A. Positive work
B. Negative work
C. Zero work
D. Infinite work
4 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:
A. +5 x 101J
B. +5 x 102J
C. +5 x 103J
D. +5 x 104J
5 The field in which work done is moving body between two points depends upon the path followed is called:
A. Conservative filed
B. Non-conservative field
C. Electric field
D. None of these
6 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
7 Energy stored in the spring of a watch is called
A. Potential energy
B. Kinetic energy
C. Nuclear energy
D. Elastic potential
8 The work done 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
9 Power is a :
A. Vector quantity
B. Base quantity
C. Scalar quantity
D. None of these
10 Work is a scalar product of
A. Force, Velocity
B. Velocity, Displacement
C. Force, Displacement
D. Force, Momentum

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