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

SI Unit of work is

Question # 2

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

Question # 3

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done in 25J. The angle which the force makes with the direction of motion will be

Question # 4

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

Question # 5

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

Question # 6

A solar cell converts energy of the Sun into:

Question # 7

The work performed on an object does not depend on:

Question # 8

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

Question # 9

Which force is not a conservative force:

Question # 10

Which force is not a conservative force?

Question # 11

The work performed on an object does not depend on

Question # 12

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

Question # 13

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

Question # 14

When two protons are brought are brought closer potential energy of both of them:

Question # 15

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:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The types of mechanical energy is/are:
A. Kinetic energy
B. Potential energy
C. Both of these
D. None of these
2 If force and displacement are in opposite direction, the work done is taken as
A. Positive work
B. Negative work
C. Zero work
D. Infinite work
3 A two Kg block is held 1 m above the floor for 50 seconds, the work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J
4 The energy stored int he water of the dam is:
A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
5 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
6 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
7 The work done by a force keeping an object in circular motion with constant speed is:
A. Zero J.
B. 0.1 J
C. 1 J
D. 0.01 J
8 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°
9 Work is a Quantity
A. Vector
B. Scalar
C. Non-physical
D. None of these
10 Power is a :
A. Vector quantity
B. Base quantity
C. Scalar quantity
D. None of these

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