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 done is maximum when angle between force and displacement is:

Question # 2

The amount of coal used since 1945 up till now as compared to that used in the whole of history before that is

Question # 3

Energy stored in the spring of a watch is called

Question # 4

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

Question # 5

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

Question # 6

The tidal energy is due to gravitational pull of :

Question # 7

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:

Question # 8

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done in 25J. The angle which the force makes with the direction of motion will be

Question # 9

Work done in lower and bucket into the well is:

Question # 10

Work is a:

Question # 11

Work is a always done on a body when

Question # 12

Work done by the force of friction is always

Question # 13

The consumption of energy by a 60 W bulb in 2 minutes is:

Question # 14

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 # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done in 25J. The angle which the force makes with the direction of motion will be
A. 60°
B. 90°
C. 30°
D. 0°
2 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
3 Work is a Quantity
A. Vector
B. Scalar
C. Non-physical
D. None of these
4 When a falling body hits ground, its KE changes to _____ energy.
A. Potential
B. Chemical
C. Mechanical
D. sound and heat
5 The energy stored int he water of the dam is:
A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
6 Work is a scalar product of
A. Force, Velocity
B. Velocity, Displacement
C. Force, Displacement
D. Force, Momentum
7 When velocity of moving body is doubled, the quantity which is also doubled is its:
A. K.E.
B. Acceleration
C. Momentum
D. P.E.
8 Work done is independent of path followed in _______
A. Gravitational field
B. Magnetic field
C. Electric field
D. All of these
9 Which of the following is not a unit of power:
A. J-sec
B. Watt
C. N m/sec
D. Horsepower
10 The ultimate source of money sources of energy is:
A. Sun
B. Air
C. Water
D. Petroleum

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