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Chapter 2 of 12
Revision Notes

Work, Energy and power

ICSE · Class 10 · Physics

Quick revision notes for Work, Energy and power — ICSE Class 10 Physics. Key concepts, formulas, and definitions for last-minute revision.

45 questions24 flashcards5 concepts

Key Topics to Revise

1

Work and Its Measurement

  • Work is done only when a body is displaced under the influence of an applied force
  • If there is no displacement, no work is done (e.g., pushing a wall, holding a bucket)
  • Work is a scalar quantity with magnitude but no direction
2

Power and Its Units

  • Power is the rate of doing work or energy transfer per unit time
  • Greater power means same work is done in less time
  • Power depends on both work done and time taken
3

Energy and Its Forms

  • Energy is the capacity to do work
  • Energy can exist in various forms but total energy is conserved
  • Mechanical energy consists of kinetic and potential energy
4

Kinetic Energy

  • Energy possessed by a body due to its motion
  • Depends on mass and square of velocity
  • Doubling velocity increases KE by four times

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Full Notes

Key Concepts

Work is done when a forceEnergy is the capacity to doPower is the rate of doingThis theorem states that work doneEnergy cannot be created or destroyed

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Frequently Asked Questions

What are the important topics in Work, Energy and power for ICSE Class 10 Physics?

Work, Energy and power covers several key topics that are frequently asked in ICSE Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.

Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.