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

When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is:

Question # 2

The tidal energy is produced due to rotation of Earth relative to:

Question # 3

Work is product of:

Question # 4

Work done is independent of path followed in _______

Question # 5

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:

Question # 6

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

Question # 7

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 the direction of motion will be:

Question # 8

The tidal energy is due to gravitational pull of :

Question # 9

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

Question # 10

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 # 11

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

Question # 12

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 # 13

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:

Question # 14

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

Question # 15

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Most of the geysers occur in:
A. Volcanic regions
B. Magnetic regions
C. Northern region
D. None of these
2 The space around the earth within it exerts a force of attraction on other bodies of known as:
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
3 When force and displacement are perpendicular to each other than work is equal to
A. Unity
B. Infinity
C. Zero
D. -Fd
4 A solar cell converts energy of the Sun into:
A. Heat energy
B. Magnetic energy
C. Light energy
D. Sound energy
5 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
6 A solar cell is made from:
A. Iron
B. Silicon
C. Germanium
D. Copper
7 Work has the dimensions as that of
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
8 Work done is independent of path followed in _______
A. Gravitational field
B. Magnetic field
C. Electric field
D. All of these
9 A 100 kg car is moving at a speed of 10 m/sec and comes to rest after covering a distance of 50 m. the amount of work done against friction is:
A. +5 x 101J
B. +5 x 102J
C. +5 x 103J
D. +5 x 104J
10 Which force is not a conservative force?
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force

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