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 tidal energy is due to gravitational pull of :

Question # 2

Work is a:

Question # 3

The work performed on an object does not depend on

Question # 4

Tick the conservation force:

Question # 5

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

Question # 6

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 # 7

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

Question # 8

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 # 9

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 # 10

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

Question # 11

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

Question # 12

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 # 13

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

Question # 14

Work is a scalar product of

Question # 15

The angle between centripetal force and displacement of the body moving in a circle is:

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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 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
3 Energy stored in the spring of a watch is called
A. Potential energy
B. Kinetic energy
C. Nuclear energy
D. Elastic potential
4 The work done 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
5 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
6 The tidal energy is due to gravitational pull of :
A. sun
B. moon
C. Mars
D. None of these
7 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
8 The consumption of energy by a 60 W bulb in 2 minutes is:
A. 2 watt-hour
B. 120 watt-hour
C. 30 watt-hour
D. None of these
9 Power is a :
A. Vector quantity
B. Base quantity
C. Scalar quantity
D. None of these
10 Work is a
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these

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