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

The types of mechanical energy is/are:

Question # 2

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

Question # 3

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

Question # 4

Work-energy principle states that work done on the body by applied force is equal to change in:

Question # 5

Area under the force displacement graph gives

Question # 6

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

Question # 7

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

Question # 8

Work is a scalar product of

Question # 9

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

Question # 10

Which force is not a conservative force?

Question # 11

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:

Question # 12

Work is a:

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

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

Question # 15

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:`

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work done is maximum when angle between force and displacement is
A. 0°
B. 90°
C. 180°
D. None of these
2 The power of an electric generating station is expressed in:
A. Kilo Jule
B. Kilowatt-hour
C. Kilo watt
D. Watt
3 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
4 A body moves a distance of 10 m among a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:
A. 0°
B. 30°
C. 60°
D. 90°
5 A laborer carrying a load on his head moves from the rest on a horizontal road to another point where he comes to rest. He has done:
A. Minimum Work
B. Maximum Work
C. Zero Work
D. Negative Work
6 Work is product of:
A. Force and velocity
B. Heat and energy
C. Force and displacement
D. None of these
7 1 J = ________?
A. 107erges
B. 10-7erges
C. 105erges
D. 10-5erges
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 or B is correct
D. Both A and B is correct
9 The unit of work in CGS system is
A. Joule
B. Erg
C. Dyne
D. Watt
10 Work has the dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power

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