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

In the force applied is parallel to the direction of motion, then work done is:

Question # 2

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 # 3

A two Kg block is held 1 m above the floor for 50 seconds, the work done is:

Question # 4

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

Question # 5

The ultimate source of money sources of energy is:

Question # 6

Teh consumption of energy by a 1000 watt heater in half an hour is:

Question # 7

The value of escape velocity of Earth planet comes out to be:

Question # 8

The space around the earth within which it expects a force of attraction on other bodies is known as:

Question # 9

The energy stored int he water of the dam is:

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

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

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 The tidal energy is due to gravitational pull of :
A. sun
B. moon
C. Mars
D. None of these
2 A 100 Kg car is moving at the speed of 10 m/sec and comes to rest after covering a distance of 50 m. The amount of work done against the friction is:
A. +5 X 101J
B. +5 X 102J
C. +5 X 103J
D. +5 X 104J
3 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
4 Energy stored in the spring of a watch is called
A. Potential energy
B. Kinetic energy
C. Nuclear energy
D. Elastic potential
5 Work is a
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
6 When a body 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
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 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
9 The work done by a force keeping an object in circular motion with constant speed is:
A. Zero J.
B. 0.1 J
C. 1 J
D. 0.01 J
10 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°

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