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A battery lights a bulb. Describe the en...

A battery lights a bulb. Describe the energy changes involved in the process.

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The battery converts chemical energy into electrical energy. The electrical energy is transformed into heat and light energy in the bulb.
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KUMAR PRAKASHAN-WORK AND ENERGY -QUESTION & ANSWER (ANSWER THE FOLLOWING QUESTIONS IN SHORT :)
  1. Does the transfer of energy take place when you push a huge rock with ...

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  2. The potential energy of a freely falling object decreases progressivel...

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  3. A battery lights a bulb. Describe the energy changes involved in the p...

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  4. A person holds a bundle of hay over his head for 30 minutes and gets t...

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  5. An electric heater is rated 1500 W. How much energy does it use in 10 ...

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  6. In each of the following a force F is acting on an object of mass m. T...

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  7. Soni says that the acceleration in an object could be zero even when s...

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  8. Find the energy in kWh consumed in 10 hour by 4 devices of power 500 W...

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  9. A certain household has consumed 250 units of energy during a month. H...

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  10. A mass of 10 kg is at a point A on a table. It is moved to a point B. ...

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  11. What is the work done by the force of gravity on a satellite moving ro...

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  12. Think of situation when an obejct gets displaced in the absence of a f...

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  13. An object thrown at a certain angle to the ground moves in a curved pa...

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  14. When is the work done by a force is positive and negative ?

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  15. How is work calculated, if a applying force to the object (i) there is...

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  16. Four men lift a 250 kg box to a height of 1 m and hold it without rais...

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  17. A boy is moving on a straight road against a frictional force of 5 N. ...

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  18. Name different types of energy. Give the unit of energy.

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  19. A freely falling object eventually stops on reaching the ground. What ...

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  20. Write a suitable reason for heating up of a metal when hit by a fast m...

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