Skip to main content
Super TutorResources
Chapter 2 of 12
Chapter Summary

Work, Energy and power — Chapter Summary

ICSE · Class 10 · Physics

Summary of Work, Energy and power for ICSE Class 10 Physics. Key concepts: Work is done when a body, Work is maximum and positive and The SI unit of work.

43 questions36 flashcards10 formulas & key relations5 concepts

Interactive on Super Tutor

Studying Work, Energy and power? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for chapter summary and more.

Try Super Tutor — Free

Free trial, no card needed.

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.
Super Tutor

One of 16 illustrations for Work, Energy and power in Super Tutor — alongside flashcards, concept maps and practice questions.

See them all

Overview

Work is done only when a force acts on a body and the body is displaced. Work, energy, and power are closely connected ideas in physics. Work measures the effect of a force through displacement, energy is the capacity to do work, and power is the rate at which work is done. The chapter also explains

Key Concepts

Work is done when a body

Work is done when a body is displaced under the influence of an applied force. Mathematically, W = F·d. If the force and displacement are in the same

Work is maximum and positive when

Work is maximum and positive when force and displacement are in the same direction, so θ = 0° and W = Fs. Work is zero when θ = 90° or when displaceme

The SI unit 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 is erg. One erg is t

Power is the rate of doing

Power is the rate of doing work. Its formula is P = W/t. It also has the form P = F × v, or P = F·v cosθ. Power is a scalar quantity and depends on bo

The SI unit of power

The SI unit of power is watt. If one joule of work is done in one second, the power is one watt. Larger units include kilowatt, megawatt, microwatt, a

Learning Objectives

  • Define work, energy, and power correctly
  • Understand the conditions for positive, zero, and negative work
  • Use the formulas W = F·d, W = F cosθ · s, P = W/t, K = 1/2 mv^2, and U = mgh
  • Recognise SI and CGS units of work, power, and energy
  • Relate work to area under force-displacement graphs

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 and its Measurement, Units of Work, Power and its Units, Energy and Units of Energy. Study these first, then practise questions on each for the ICSE Class 10 board exam.
How should I revise Work, Energy and power for the ICSE Class 10 board exam?
Learn the core ideas first, then work through the 43 practice questions on Work, Energy and power. Revise 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 ICSE Class 10 Physics Chapter Summary

For serious students

Get the full Work, Energy and power chapter — start free.

Quizzes, flashcards, an AI doubt solver and a study plan for ICSE Class 10 Physics. Free to start, no card needed.

Try Super Tutor Free
Try this chapter free