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

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

Question # 2

Work done along a closed path in a gravitational field is:

Question # 3

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

Question # 4

Work has the dimension as that of:

Question # 5

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

Question # 6

The types of mechanical energy is/are:

Question # 7

The work performed on an object does not depend on

Question # 8

Work done is maximum when angle between force and displacement is

Question # 9

The unit of work in CGS system is

Question # 10

Work done in lower and bucket into the well is:

Question # 11

A body moves a distance of 10 m among a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:

Question # 12

Work done by the force of friction is always

Question # 13

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

Question # 14

When velocity of moving body is doubled, the quantity which is also doubled is its:

Question # 15

The power of an electric generating station is expressed in:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is
A. 0.5 J
B. 2 J
C. 0.25 J
D. 1 J
3 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
4 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
5 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
6 Work is a
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
7 The power of an electric generating station is expressed in:
A. Kilo Jule
B. Kilowatt-hour
C. Kilo watt
D. Watt
8 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
9 Work is product of:
A. Force and velocity
B. Heat and energy
C. Force and displacement
D. None of these
10 Work-energy principle states that work done on the body by applied force is equal to change in:
A. Potential energy
B. Kinetic nergy
C. Linear momentum
D. None of these

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