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The potential energy of your body isleas...

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

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Choose the correct alternative and write it along with its allotted alphabet: The potential energy of your body is least when you are …… A. sitting on a chair B. sitting on the ground C. sleeping on the ground D. standing on the ground

What is potential energy ?

Answer the following questions: What do you understand by the potential energy of a body? Explain it with a suitable example.

Potential energy of a body is given by (P.E.) =………

State whtether the following statement are true or false. The potential energy of a body of mass 1kg kept at height 1 m is 1J.

Kinetic energy of a body (KE) =

Calculate the potential energy of a body of mass 5 kg at a height of 2m from the ground.

Find the gravitational potential energy of a body of mass 10 kg when it is at a height of 6400 km from the earth's surface. [M (earth) = 6xx 10^24 kg, R(earth) =6400 km]

Choose the correct alternative and write it along with its allotted alphabet: The gravitational potential energy of a body at a height h from surface of the energy is ……. A. 1/2 mgh B. mgh C. mv^2 D. mg

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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