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Is it true for every force in nature that the work done by it on the undergoing motion in a closed loop is always zero?

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No, it is true for only conservative force that the work done by them on a body undergoing motion in a closed loop is zero. In case of a non-conservative force like friction, this does not hold true
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Nature Of The Work Done

When is work done by a force zero ?

Statement-1:Comets move around the sun in elliptical orbits, the gravitational force on the comet due to sun is not normal to the comet's velocity, but the work done by the gravitational force over every complete orbit of the comet is zero. Statement-2: Gravitational force is a conservative force and the work done by a conservative force over a closed path is always zero.

True / False type questions : It is necessary that the work done in the motion of a body over a closed loop is zero for every force in nature.

A body is moved along a closed loop. Is the work done in moving the body necessarily zero ? If not, state the condition under which work done over a closed path is always zero.

Statement-1. For a charged particle moving from pont P to point Q , the net work done by an electrostatic field on the particle is independent of the path connecting point P to point Q Statement-2. The net work done by a conservatie force on an object moving along a closed loop is zero.

(A) : Kinetic friction force is non-conservative in nature . (R) : Net work done by kinetic friction on a block is always completely converted into heat .

Show that the tangential component of electrostatic field is continuous from one side of charged surface to another. [Hint : use the fact that work done by electrostatic field on a closed – loop is zero.]

State if each of the following statements is true or false. Give reasons for your answer. a) In an elastic collision of two bodies, the momentum and energy of each body is conserved. b)Total energy of a systm is always conserved,no matter what internal and external forces on the body are present. Work done in the motion of a body over a closed loop is zero for every force in nature. d) In an inelastic collision, the final kinetic energy is always less than the initial kinetic energy of the sytem.

MODERN PUBLICATION-WORK, ENERGY AND POWER -Conceptual Questions
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  9. Is it possible to have a situation where mechnial energy (E ) - potent...

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  10. Give all stages of energy of conversions whwn an athlete performs a po...

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  11. It is observed that a metal ball rebounds better than a rubber ball. W...

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  12. When is the exchange of energy maximum during an elastic collision?

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  13. Kinetic energy varies as a square of momentum. A rocket expoldes mid a...

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  14. In a tug of war, one team is giving way to other. What work is being d...

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  15. A spark is produced when two stones strike against each other. Why?

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  16. An artificial satellite orbiting the earth in very thin atmosphere los...

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  17. A body undergoing a straight line motion is under the influence of sou...

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  18. A skater wearing his skates is oushing a wall. What will be the work d...

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  19. For a man walking on the floor, the force of friction between the floo...

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  20. Two blocks of masses m and 3m, intially at rest, are pushed from line...

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