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Work and Energy — Revision Notes

ICSE · Class 5 · Science

Work and Energy revision notes for ICSE Class 5 Science: 4 topics in quick points. Includes What is Work?, What is Energy? and Forms of Energy.

47 questions30 flashcards5 concepts

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Key Topics to Revise

1

What is Work?

  • In science, work is done only when a force moves an object in the direction of the force.
  • If there is no movement, no work is done — even if you are applying force.
  • Examples: Pushing a wall does not count as work because the wall does not move.
2

What is Energy?

  • Energy is the ability or capacity to do work.
  • We need energy to apply force and do work.
  • We get energy from food, the Sun, fuels, wind, and water.
3

Forms of Energy

  • Heat Energy: Comes from the Sun, burning fuels. Used for cooking and warming.
  • Light Energy: Helps us see. Comes from the Sun, bulbs, candles.
  • Mechanical Energy: Energy of motion or position. Includes kinetic (moving) and potential (stored) energy.
4

Sources of Energy

  • Sun is the main source of energy — gives heat and light.
  • Plants use solar energy to make food (photosynthesis).
  • Fuels like coal, petrol, and natural gas are formed from ancient plants and animals — called fossil fuels.

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Full Notes

Key Concepts

In scienceEnergy is the power or capacityEnergy comes in many formsThe Sun is the biggest sourceRenewable sources like sunlight

Frequently Asked Questions

What are the important topics in Work and Energy for ICSE Class 5 Science?
Key topics in Work and Energy include What is Work?, What is Energy?, Forms of Energy, Sources of Energy. Study these first, then practise questions on each for Class 5 exams.
How should I revise Work and Energy for Class 5 exams?
Learn the core ideas first, then work through the 47 practice questions on Work and Energy. 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.

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All ICSE Class 5 Science Revision Notes

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