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The unit of power is...

The unit of power is

A

watt

B

joule

C

newton

D

kg

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The correct Answer is:
A
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HC VERMA-WORK, ENERGY AND POWER-QUESTION BANK
  1. In which of the following cases is the potential energy of a spring mi...

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  2. A particle of mass 100 g moves at a speed of 1 m/s. Its kinetic energy...

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  3. A ball is thrown upwards from a point A.It reechec up to the highest p...

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  4. A body of mass 2 kg is dropped from a height of 1 m. It s kinetic as i...

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  5. Two bodies of unequal masses are dropped from a cliff. At any instant,...

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  6. When the speed of a particle is doubled, its kinetic energy

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  7. When the speed of a particle is doubled, the ratio of its kinetic ener...

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  8. The unit of power is

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  9. A person A does 500 J of work in 10 minutes and another person B does ...

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  10. Mark the statement true(T) or false (F): Work and energy have differe...

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  11. Mark the statement true(T) or false (F): A stone tied to a string is ...

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  12. Mark the statement true(T) or false (F): When an aeroplane takes off,...

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  13. Mark the statement true(T) or false (F): The potential energy of a sp...

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  14. Mark the statement true(T) or false (F): When negative work is done b...

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  15. Mark the statement true(T) or false (F): A person stands for a long t...

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  16. Mark the statement true(T) or false (F): When a body falls, its kinet...

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  17. Mark the statement true(T) or false (F): A rubber band has more poten...

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  18. A 2-kg body is sliding up an inclined plane of inclination 30^@. Find ...

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  19. A ball of mass 1 kg is dropped from a height of 5 m. What is its speed...

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  20. A 1000-W heater is used for 1 hour every day for 30 days . Find the co...

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