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 dimensions of work

Question # 3

The field in which work done in moving a body between two points depends upon the path followed is called:

Question # 4

1 J = ________?

Question # 5

The field in which work done is moving body between two points depends upon the path followed is called:

Question # 6

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

Question # 7

Most of the geysers occur in:

Question # 8

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

Question # 9

A 2 kg block is held 1 m above floor for 50 seconds. The work done is:

Question # 10

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 # 11

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 # 12

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 # 13

Work has the dimension as that of:

Question # 14

Area under the force displacement graph gives

Question # 15

Power is a :

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 A field in which the work done in moving a body along closed path is zero is called
A. Nuclear Field
B. Conservative field
C. Gravitational field
D. Non-conservative field
2 The tidal energy is produced due to rotation of Earth relative to:
A. Moon
B. Sun
C. Oceans
D. Water
3 Which force is not a conservative force:
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
4 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
5 Which one is conservative force
A. Electric force
B. Frictional force
C. Normal force
D. Air resistance
6 The unit of work in CGS system is
A. Joule
B. Erg
C. Dyne
D. Watt
7 Which force is not a conservative force?
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
8 Which of the following is not a unit of power:
A. J-sec
B. Watt
C. N m/sec
D. Horsepower
9 Tick the conservation force:
A. Tension in a string
B. Air resistance force
C. Elastic spring
D. Frictional force
10 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

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