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

Question # 2

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 # 3

In the force applied is parallel to the direction of motion, then work done is:

Question # 4

Work is product of:

Question # 5

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

Question # 6

Escape velocity from surface of Moon as compared to that from Earth surface is:

Question # 7

Work done is maximum when angle between force and displacement is

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

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 # 10

In the force applied to parallel to the direction of motion, then the work done is:

Question # 11

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

Question # 12

Which of the following types of force can do no work on the particle on which it acts

Question # 13

Which of the following is not a unit of power:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work has the dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
2 Work done is maximum when angle between force and displacement is
A. 0°
B. 90°
C. 180°
D. None of these
3 The value of escape velocity of Earth planet comes out to be:
A. 11 m/sec
B. 11 km/sec
C. 11 km/hour
D. 11 cm/sec
4 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
5 Tick the conservation force:
A. Tension in a string
B. Air resistance force
C. Elastic spring
D. Frictional force
6 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
7 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
8 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 with the direction of motion will be:
A. 60°
B. 90°
C. 30°
D. 0°
9 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
10 When a wall is pushed by a person very strongly, he has done:
A. Maximum work
B. Zero work
C. Positive work
D. Negative work

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