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Choose one or more alternatives: While ...

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While dragging or lifting an objectm negative work is done by……..

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Choose one or more alternatives: the joule is the unit of…….. A. force B. work C. power D. energy

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BAL BHARTI-WORK AND ENERGY-Exercises
  1. Choose one or more alternatives: Which of the forces involved in drag...

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  2. Choose one or more alternatives: Power is a measure of the ………

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  3. Choose one or more alternatives: While dragging or lifting an objectm...

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  4. The potential energy of your body isleast when you are……

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  5. The total energy of an object falling freely towards the ground………………....

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  6. If we increase the velocity of a car moving on a flat surface to 4 tim...

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  7. The work done on an object does not depend on…..

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  8. Questions based on paragraph Study the following activity and answer ...

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  9. Questions based on paragraph Study the following activity and answer ...

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  10. Study the following activity and answer the questions: Now take two b...

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  11. Study the following activity and answer the questions: At the moment ...

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  12. Study the following activity and answer the questions: As the balls r...

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  13. Study the following activity and answer the questions: Why do the ball...

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  14. Study the following activity and answer the questions: What is the for...

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  15. Questions based on paragraph Study the following activity and answer ...

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  16. Solve the following examples: An electric pump has 2 kW power. How mu...

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  17. Solve the following examples: If a 1200 W electric iron is used daily...

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  18. Solve the following examples: If the energy of a ball falling from a ...

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  19. The velocity of a car increases from 54 km/hr to 72 km/hr. How much is...

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  20. Solve the following examples: Ravi applied a force of 10 N and moved ...

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