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

A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, which makes and angle of 60° with the horizontal. The work done by the boy is:

Question # 2

Watt x second is unit of:

Question # 3

Work done is lowering the bucket into the well is:

Question # 4

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 # 5

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

Question # 6

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

Question # 7

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

Question # 8

Work done in lower and bucket into the well is:

Question # 9

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

Question # 10

The tidal energy is due to gravitational pull of :

Question # 11

The energy stored int he water of the dam is:

Question # 12

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

Question # 13

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

Question # 14

A labourer carrying a distance a load on his head moves from rest on a horizontal road to another point where he comes to rest. He has done:`

Question # 15

Work is product of:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The power of an electric generating station is expressed in:
A. Kilo Jule
B. Kilowatt-hour
C. Kilo watt
D. Watt
2 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
3 The field in which work done in moving a body between two points depends upon the path followed is called:
A. Conservative field
B. Non-conservative field
C. Electric field
D. None of these
4 The work done in moving a body between two points in a conservative field is independent of the
A. Direction
B. Force applied
C. Path followed by the body
D. Power
5 The tidal energy is due to gravitational pull of :
A. sun
B. moon
C. Mars
D. None of these
6 When the body is moves against the force of friction on a horizontal plane, the work done by the body is:
A. Positive
B. Negative
C. Zero
D. None of these
7 Watt x second is unit of:
A. Force
B. Work
C. Power
D. None of these
8 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
9 1 J = ________?
A. 107erges
B. 10-7erges
C. 105erges
D. 10-5erges
10 A body moves a distance of 10 m along a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which force makes with the direction of motion of a body is:
A. 0°
B. 30°
C. 60°
D. 90°

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