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Work, Energy and power

ICSE · Class 10 · Physics

Complete topic list for Work, Energy and power in ICSE Class 10 Physics. Key concepts, sub-topics, and what to focus on for board exams.

43 questions36 flashcards5 concepts

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An illustration showing a block being pulled by a constant force F at an angle theta to the horizontal displacement S, with the formula W = F ⋅ S = FS cosθ.
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4 Topics · ICSE Class 10 Physics

Topics in Work, Energy and power

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 even when a force acts, work done is zero.
  • Work is a scalar quantity, while force and displacement are vector quantities.
2

Units of Work

  • The SI unit of work is joule.
  • One joule is the work done by a force of one newton in displacing a body by one metre.
  • The CGS unit of work is erg.
3

Power and its Units

  • Rate of doing work is known as power.
  • Power depends on the amount of work done and the time taken.
  • Smaller the time taken for the same work, greater is the power.
4

Energy and Units of Energy

  • Energy is the capacity to do work.
  • When a body is capable of doing work, it possesses energy.
  • When work is done on a body, its energy increases.

Key Concepts

Central concept: Work, energy and power describe how force causes displacement, how fast work is done, and how energy is stored, transferred, and conserved

WorkPowerEnergyMechanical EnergyKinetic EnergyPotential EnergyConservation of EnergyOther Forms of Energy

Frequently Asked Questions

What are the important topics in Work, Energy and power for ICSE Class 10 Physics?
Key topics in Work, Energy and power include Work, Energy and Power — Chapter Concept Map, Is Work Done? — Decision Tree for Common Scenarios, Work, Energy and Power — Complete Chapter Mind Map. These are the concepts ICSE Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Work, Energy and power — ICSE Class 10 Physics?
Understand the core concepts first, then work through the 43 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

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

More resources for Work, Energy and power

All 12 chapters — ICSE Class 10 Physics Syllabus

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