Physics ECAT Pre Engineering Chapter 4 Work and Energy

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  • Chapter NameCh 4 - Work and Energy

Physics ECAT Pre Engineering Chapter 4 Work and Energy

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Physics ECAT Pre Engineering Chapter 4 Work and Energy

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Question # 1

The ultimate source of money sources of energy is:

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

Work is a:

Question # 6

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

Question # 7

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

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

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

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

Question # 11

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

Question # 12

The work done on the body will be zero if:

Question # 13

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 # 14

Work has the dimension as that of:

Question # 15

1 J = ________?

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