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

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 # 2

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

Question # 3

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

Question # 4

A solar cell converts energy of the Sun into:

Question # 5

SI Unit of work is

Question # 6

Most of the geysers occur in:

Question # 7

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:

Question # 8

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 # 9

Work is a Quantity

Question # 10

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

Question # 11

Tick the conservation force:

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

The field in which work done in moving a body between two points depends upon the path followed is called:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 When a falling body hits ground, its KE changes to _____ energy.
A. Potential
B. Chemical
C. Mechanical
D. sound and heat
2 Work done is independent of path followed in _______
A. Gravitational field
B. Magnetic field
C. Electric field
D. All of these
3 The field in which work done is moving body between two points depends upon the path followed is called:
A. Conservative filed
B. Non-conservative field
C. Electric field
D. None of these
4 A body moves a distance of 10 m along a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which force makes with the direction of motion of a body is:
A. 0°
B. 30°
C. 60°
D. 90°
5 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
6 If force and displacement are in opposite direction, the work done is taken as:
A. Positive work
B. Negative work
C. Zero work
D. Infinte work
7 Work is product of:
A. Force and velocity
B. Heat and energy
C. Force and displacement
D. None of these
8 Work is a Quantity
A. Vector
B. Scalar
C. Non-physical
D. None of these
9 If work is done at the rate of 2 k j per second, then total work done is half an hour will be:
A. 0.5 Kwn
B. 2 Kwh
C. 1 Kwh
D. None of these
10 In the force applied is parallel to the direction of motion, then work done is:
A. Maximum
B. Minimum
C. Zero
D. None of these

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