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 is 25J. The angle which the force makes the direction of motion will be:

Question # 2

The work performed on an object does not depend on:

Question # 3

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

Question # 4

The tidal energy is produced due to rotation of Earth relative to:

Question # 5

1 J = ________?

Question # 6

The dimensions of work

Question # 7

Work is a:

Question # 8

The work done by a force keeping an object in circular motion with constant speed is:

Question # 9

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

Question # 10

Which of the following types of force can do no work on the particle on which it acts

Question # 11

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:

Question # 12

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

Question # 13

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

Question # 14

Work has the dimension as that of:

Question # 15

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:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The value of escape velocity of Earth planet comes out to be:
A. 11 m/sec
B. 11 km/sec
C. 11 km/hour
D. 11 cm/sec
2 The space around the earth in which its gravitational force acts on a body is called
A. Electric Field
B. Gravitational field
C. Magnetic field
D. Conservative field
3 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
4 SI Unit of work is
A. Nm-1
B. Joule
C. Nms
D. Both a and b
5 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°
6 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°
7 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
8 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
9 When a falling body hits ground, its KE changes to _____ energy.
A. Potential
B. Chemical
C. Mechanical
D. sound and heat
10 Work is always done on a body when:
A. A force acts on it
B. It moves through certain distance
C. None of A and B is correct
D. Both A and B is correct

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