Sources of Energy — Chapter Summary
NIOS · Class 10 · Science & Tech
Summary of Sources of Energy for NIOS Class 10 Science & Tech. Key concepts: Energy is defined as, Anything from which usable and Renewable sources can be.
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Overview
Energy is the ability to do work. Every activity, from movement and cooking to running vehicles and industries, needs energy. Sources of energy are the things from which usable energy can be obtained. These sources are broadly divided into renewable and non-renewable types. The chapter explains conv
Key Concepts
Energy is defined as the ability
Energy is defined as the ability to do work. It is needed for body functions, movement, machines, cooking, lighting, and transport.
Anything from which usable energy can
Anything from which usable energy can be extracted is a source of energy.
Renewable sources can be replenished
Renewable sources can be replenished in a short time, while non-renewable sources are limited and cannot be replaced quickly.
Coal
Coal, crude oil and natural gas are fossil fuels. They are conventional, non-renewable sources formed from dead plants and animals over millions of ye
Coal is a fossil fuel formed
Coal is a fossil fuel formed by coalification. Its types are peat, lignite, sub-bituminous and bituminous. Bituminous coal is the best quality coal wi
Learning Objectives
- Define energy and source of energy
- Distinguish between renewable and non-renewable sources of energy
- Identify conventional and alternative sources of energy
- Explain fossil fuels, nuclear energy, and renewable energy sources
- Describe the sun as the ultimate source of energy
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Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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