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Udisha Kapoor
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Asked: 2020-10-30T04:06:22+00:00 In:

What is a good source of energy?

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NCERT Solution for Class 10 Science Chapter 14
Sources of Energy
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Intext Questions
Page No-242
Questions No-1

2020-2021cbsechapter 14class10ncertsciencesources of energy
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    6 Answers

    1. A good source of energy should be renewable and environment-friendly .

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    2. A good source of energy satisfies:

      It does a huge amount of work per unit mass.

      It is easily accessible.

      It is easy to store and transport.

      It is economical.

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    3. Good source of energy should have the following characteristics:

      • It should do a large amount of work per unit mass or volume – it means that the output energy must be more than the input energy. It should have high calorific value.
      • It should be easily accessible – the energy source should be able to provide energy over a long period of time. Example: coal and petroleum.
      • Should be easy to store and transport – most common sources of energy such as coal, petrol, and LPG need to be transported to users from their points of production. They also need proper storage. Thus, it is important to store and transport these sources safely and economically.
      • Should be safe and convenient to use – energy sources should be safe as it is used by a large number of people and should be convenient. Example: Nuclear energy from a nuclear power plant is hazardous to be used at homes.
      • It should be economical.
      • It should be eco-friendly.
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    4. A good source of energy fulfils the following criteria:
      It produces a lot of heat per unit mass.
      It does a huge amount of work per unit mass.
      It is easily accessible.
      It is easy to store and transport.
      It is economical.
      It produces less amount of smoke.

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    6. The characteristics of good source of energy are
      (a) It should have high calorific value.
      (b) It should be easy to handle.
      (c) It is should be easily available.
      (d) It is easy to store.
      (e) It should be cheaper.
      (f)It should produce less amount of smoke.

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    7. A good source of energy should have the following qualities:
      • It should be easily available.
      • It should do a large amount of work (or produce large amount of heat) per unit volume/mass.
      • It should be easy to store and transport.
      •It should be economical.
      • It should cause less environmental pollution.

      For more answers visit to website:
      https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-14/

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