Skip to main content
Super TutorResources
Chapter 12 of 32
QuestionsNotesFlashcardsSummaryFormulasQuizConceptsSyllabusPlan
Revision Notes

Sources of Energy

NIOS · Class 10 · Science & Tech

Quick revision notes for Sources of Energy — NIOS Class 10 Science & Tech. Key concepts, formulas, and definitions for last-minute revision.

44 questions45 flashcards5 concepts

Interactive on Super Tutor

Studying Sources of Energy? Get the full interactive chapter.

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

Try Super Tutor — Free

1,000+ Class 10 students started this chapter today

A diagram illustrating the nuclear fusion process, where two light nuclei combine under extreme conditions to form a heavier, more stable nucleus, releasing a large amount of energy.
Super Tutor

Learn better with visuals Super Tutor has hundreds of illustrations like this across every chapter — all free to try.

Get started

Key Topics to Revise

1

1. Energy and Sources of Energy

  • Energy is defined as the ability to do work.
  • A body having energy is capable of doing work.
  • Energy appears in many forms such as heat, light, mechanical, electrical, chemical, sound, and nuclear energy.
2

2. Non-Renewable Sources of Energy

  • Coal, crude oil, natural gas, and uranium are non-renewable sources of energy.
  • Fossil fuels such as coal, oil, and natural gas are conventional sources of energy.
  • Over 85% of energy demands are met by combustion of fossil fuels.
3

3. Coal and Natural Gas

  • Coal is formed by coalification.
  • Types of coal are peat, lignite, sub-bituminous, and bituminous.
  • Peat is the first or earliest stage of coal formation.
4

4. Nuclear Energy

  • Nuclear energy comes from the nucleus of an atom.
  • Nuclear fission is the splitting of a heavy nucleus into roughly equal lighter fragments with release of energy.
  • Nuclear fusion is the combining of light nuclei to form a heavier nucleus with release of energy.

Get complete notes with diagrams and examples

Full Notes

Key Concepts

Energy is defined as the abilityAnything from which usable energy canRenewable sources can be replenishedCoalCoal is a fossil fuel formed

Frequently Asked Questions

What are the important topics in Sources of Energy for NIOS Class 10 Science & Tech?
Key topics in Sources of Energy include Sources of Energy Classification, Sources of Energy Overview, Sources of Energy - Complete Overview. These are the concepts NIOS Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Sources of Energy — NIOS Class 10 Science & Tech?
Understand the core concepts first, then work through the 44 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 Sources of Energy

All 32 chapters — NIOS Class 10 Science & Tech Revision Notes

For serious students

Get the full Sources of Energy chapter — for free.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for NIOS Class 10 Science & Tech.

Try Super Tutor Free
Try the full chapter — Free