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

Question # 2

A 2 kg block is held 1 m above floor for 50 seconds. The work done is:

Question # 3

When a wall is pushed by a person very strongly, he has done:

Question # 4

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

Question # 5

The tidal energy is due to gravitational pull of :

Question # 6

The work done on the body will be zero if:

Question # 7

When force and displacement are perpendicular to each other than work is equal to

Question # 8

The work done by a force, keeping an object in circular motion with constant speed is:

Question # 9

Work has a dimension as that of:

Question # 10

Work is a Quantity

Question # 11

The value of escape velocity of Earth planet comes out to be:

Question # 12

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

Question # 13

Work has the dimensions as that of

Question # 14

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 # 15

Work has the dimension as that of:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 The tidal energy is due to gravitational pull of :
A. sun
B. moon
C. Mars
D. None of these
3 In the force applied to parallel to the direction of motion, then the work done is:
A. Positive
B. Negative
C. Zero
D. None of these
4 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
5 A 2 kg block is held 1 m above floor for 50 seconds. The work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J
6 Work has the dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
7 Teh consumption of energy by a 1000 watt heater in half an hour is:
A. 5 Kwh
B. 0.5 Kwh
C. 2.5 Kwh
D. 3.2 Kwh
8 Work is always done on a body when:
A. A force acts on it
B. It moves through certain distance
C. None of A and B is correct
D. Both A and B is correct
9 The work done by a force, keeping an object in circular motion with constant speed is:
A. Zero J
B. 1 J
C. 0.1 J
D. 0.01 J
10 Work done is lowering the bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these

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