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 energy stored int he water of the dam is:

Question # 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:

Question # 3

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

Question # 4

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

Question # 5

The ultimate source of money sources of energy is:

Question # 6

Work is a Quantity

Question # 7

The tidal energy is due to gravitational pull of :

Question # 8

Work is a:

Question # 9

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

Question # 10

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

Question # 11

1 J = ________?

Question # 12

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:

Question # 13

Work is a:

Question # 14

The total work done in moving the body up and then down through the same height in a gravitational field is equal to:

Question # 15

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:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 The tidal energy is due to gravitational pull of :
A. sun
B. moon
C. Mars
D. None of these
3 The energy stored int he water of the dam is:
A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
4 Work is a scalar product of
A. Force, Velocity
B. Velocity, Displacement
C. Force, Displacement
D. Force, Momentum
5 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
6 The dimensions of work
A. [MLT-1]
B. [MLT-2]
C. [ML2T-2]
D. [MLT]
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 in 25J. The angle which the force makes with the direction of motion will be
A. 60°
B. 90°
C. 30°
D. 0°
8 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
9 Work is a always done on a body when
A. A force acts on it
B. It moves through certain distance
C. None of A or B is correct
D. Both A and B are correct
10 Tick the conservation force:
A. Tension in a string
B. Air resistance force
C. Elastic spring
D. Frictional force

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