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Whether the potential energy increases o...

Whether the potential energy increases or decreases in the case of rising bubbles in water ?

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Decreases .Because work done on the bubble by buoyant force . This work done is negative and hence potential energy decreases.
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KUMAR PRAKASHAN-WORK, ENERGY AND POWER -SECTION - C Objective Questions (VSQs)
  1. The work done by a gravitational force acting on a free fall body will...

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  2. Negative sign in W = -mgh denotes what ?

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  3. Whether the potential energy increases or decreases in the case of ris...

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  4. Define 1 eV:

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  5. Does potential energy of a spring decrease/increase when it is compres...

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  6. Can kinetic energy of a body by negative ? Potential energy be negativ...

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  7. What is the work done on the body moving in uniform circular motion ?

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  8. What is the area under the graph of F to x ? (F = external force , x =...

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  9. The momentum of two unequal bodies is same , then which onehas larger ...

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  10. The momentum of a body increased doubled .What is the percentage of i...

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  11. A body is thrown upward at intial velocity of 7 ms^(-1) , then at whic...

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  12. Obtain an equation of momentum in terms of mass and kinetic energy .

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  13. Mention the dimensional formula of spring constant .

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  14. What is necessary for work done when the force is exerted on the body ...

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  15. Equal force is applied on one heavy weight and one light weight body ....

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  16. When two bodies A and B are collide with each other . They work on ea...

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  17. One body is displaced in the direction of X - axis up to 4 meter under...

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  18. What will be the work done on the body moving with constant speed ?

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  19. Find the kinetic energy when 2 gm bullet moves with the velocity of 50...

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  20. The unit of spring constant is Jm^(-2) .Is the statement true or false...

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