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Is work a vector or a scalar quantity ?...

Is work a vector or a scalar quantity ?

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The correct Answer is:
scalar quantity
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CHHAYA PUBLICATION-WORK AND ENERGY-EXERCISE (Very short Answer Type Questions)
  1. A force is acting on a body in motion, but is not doing any work. Giv...

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  2. Is work a vector or a scalar quantity ?

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  3. What is the amount of work done by a force when the body moves in a c...

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  4. In a tug -of -war game, which of the teams does effective work ?

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  5. A person is carrying a bucket of water, and is in a lift moving up wit...

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  6. A motor drives a belt at a constant velocity of v m*s^(-1) . If m kg ...

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  7. A boy tried to lift a bucketful of water , but failed. What is the wor...

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  8. What is the work done by the tension in the string during the oscillat...

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  9. A box was lifted vertically through a height of 6m in 3s . If the box ...

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  10. 1 kg *m=…………J . [Fill in the blank]

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  11. A force vecF =(5hati+3hatj+2hatk)N acts on a particle , and the partic...

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  12. How many jouls are in 1 MeV ?

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  13. What is the unit of energy ?

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  14. Does the kinetic energy of a ball, thrown inside a moving train, depe...

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  15. Which type of energy is lost in doing work against friction ?

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  16. A small car and a lorry are moving with the same kinetic energy . Bra...

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  17. When a body falls on the ground from a height ,it becomes slightly war...

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  18. Is the resistance due to air a conservative force ?

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  19. What happens to internal energy , when temperature of body increases ?

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  20. What type of energy is stored in the spring of a watch ?

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