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

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

Question # 2

Which of the following is not a unit of power:

Question # 3

SI Unit of work is

Question # 4

Work done is maximum when angle between force and displacement is:

Question # 5

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

Question # 6

Which one is conservative force

Question # 7

Work is a:

Question # 8

Work done is lowering the bucket into the well is:

Question # 9

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:

Question # 10

Work is a:

Question # 11

Work is always done on a body when:

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

Work is a scalar product of

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work has a dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
2 A two Kg block is held 1 m above the floor for 50 seconds, the work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J
3 Power is a :
A. Vector quantity
B. Base quantity
C. Scalar quantity
D. None of these
4 The unit of work in CGS system is
A. Joule
B. Erg
C. Dyne
D. Watt
5 Work done by the force of friction is always
A. Positive
B. Zero
C. Negative
D. Maximum
6 A field in which the work done is moving a body along closed path is zero is called:
A. Nuclear filed
B. Conservative field
C. Gravitational field
D. Non-conservative field
7 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
8 The work done in 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 Which of the following is not a unit of power:
A. J-sec
B. Watt
C. N m/sec
D. Horsepower
10 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

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