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What is energy? What is its unit?...

What is energy? What is its unit?

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TARGET PUBLICATION-WORK AND ENERGY-EXERCISE
  1. Discuss the directions of force and of displacement in each of the fol...

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  2. Discuss the directions of force and of displacement in each of the fol...

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  3. What is energy? What is its unit?

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  4. If a pot having a plant is kept in the dark, the plant languishes

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  5. On increasing the volume of a music system or TV beyond a limit, the v...

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  6. Collecting sunlight on a paper with the help of a convex lens bums the...

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  7. What will happen in the following case A fast cricket ball strikes th...

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  8. What will happen in the following case The striker hits a coin on the...

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  9. What will happen in the following case One marble strikes another in ...

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  10. Answer the following questions: Derive the formula for the kinetic en...

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  11. Use your Brain Power! If the mass of a moving body is doubled, how ma...

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  12. What is potential energy? Explain with suitable examples.

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  13. What are the different forms of energy?

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  14. Answer the following questions: State the law of conservation of ener...

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  15. Answer the following questions: If an object has 0 momentum, does it h...

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  16. What are the various energy transformations that occur when you are ru...

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  17. What is the difference between generator and electric motor?

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  18. Answer the following questions: Prove that the kinetic energy of a fr...

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  19. Show that the mechanical energy of a freely falling body is conserved.

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  20. The potential energy of a freely decreases progressively, Is this agai...

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