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

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

Question # 2

Which one is conservative force

Question # 3

Work done in lower and bucket into the well is:

Question # 4

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:

Question # 5

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

Question # 6

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

Question # 7

SI Unit of work is

Question # 8

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

Question # 9

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

Question # 10

Work has the dimension as that of:

Question # 11

Energy stored in the spring of a watch is called

Question # 12

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

Question # 13

When force and displacement are perpendicular to each other than work is equal to

Question # 14

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:

Question # 15

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:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The field in which work done in moving a body between two points depends upon the path followed is called:
A. Conservative field
B. Non-conservative field
C. Electric field
D. None of these
2 In the force applied is parallel to the direction of motion, then work done is:
A. Maximum
B. Minimum
C. Zero
D. None of these
3 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
4 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
5 Which force is not a conservative force:
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
6 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
7 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
8 The power of an electric generating station is expressed in:
A. Kilo Jule
B. Kilowatt-hour
C. Kilo watt
D. Watt
9 Teh consumption of energy by a 1000 watt heater in half an hour is:
A. 5 Kwh
B. 0.5 Kwh
C. 2.5 Kwh
D. 3.2 Kwh
10 Which force is not a conservative force?
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force

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