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True or False. Like humans, machines a...

True or False.
Like humans, machines also require energy to do work.

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True or False. The work done is zero if there is no displacement

TARGET PUBLICATION-WORK AND ENERGY-EXERCISE
  1. True or False. The work done is zero if there is no displacement

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  2. True or False. Work done on an object depends on time.

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  3. True or False. Like humans, machines also require energy to do work.

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  4. True or False. Units of energy and work are the same.

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  5. True or False. More energy is required for throwing a stone upwards t...

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  6. True or False. Kinetic energy is inversely proportional to the squar...

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  7. True or False. A body at rest may possess energy.

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  8. True or False. Potential energy of an object is independent of heigh...

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  9. True or False. Equivalent of | horse power in watt is 1000

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  10. True or False. Steam engine was invented by James Watt.

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  11. Odd one out A raised hammer, water at a height, a moving ball, a str...

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  12. Odd one out dyne-cm, kilowatt, joule, erg.

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  13. Complete the analogy Work done is positive : theta =0^@ :: work done ...

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  14. Complete the analogy 10^7 erg : 1 joule :: 1 kwh:

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  15. Complete the analogy Flowing water : kinetic energy :: stored water:

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  16. Complete the analogy work : joule :: joule :

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  17. What is the difference between work and energy?

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  18. Explain different types of work with examples.

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  19. What is the difference between positive work and negative work?

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  20. If the displacement is not in the direction of the applied force, how ...

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