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 an angle of 60° with the horizontal. The work done by the boy is:

Question # 2

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

Question # 3

The tidal energy is due to gravitational pull of :

Question # 4

A field in which the work done in moving a body along closed path is zero is called

Question # 5

Tick the conservation force:

Question # 6

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

Question # 7

Work done on a body by gravity in lifting it up to certain height is

Question # 8

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

Question # 9

Work has the dimensions as that of

Question # 10

Which one is conservative force

Question # 11

Power is a :

Question # 12

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

Question # 13

When a body moves against the force of friction on a horizontal plane, the work done by the body is:

Question # 14

The work performed on an object does not depend on

Question # 15

If one newton force acts on a body and displaces the body through 1m work done on body is

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work is product of:
A. Force and velocity
B. Heat and energy
C. Force and displacement
D. None of these
2 The work done on the body will be zero if:
A. No force is applied on the body
B. Force is applied but no displacement
C. Angle between F(force) and d(displacement) is 90°
D. All of these are correct
3 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
4 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:
A. 1.25 J
B. 12.5 J
C. 125 J
D. None of these
5 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
6 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
7 The work done in 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
8 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
9 Work has the dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
10 The ultimate source of money sources of energy is:
A. Sun
B. Air
C. Water
D. Petroleum

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