What is a good source of energy?

Energy is an important factor in our daily lives.  A good source of energy is that which is competent of providing sufficient, and safe energy at a steady rate over a long period of time.

Criteria of good source of energy

A good source of energy fulfils the following criteria:

  1. It produces a lot of heat per unit mass.
  2. It does a huge amount of work per unit mass.
  3. It is easily accessible.
  4. It is easy to store and transport.
  5. It is economical.
  6. It produces less amount of smoke.


Check the video to learn about work, power and energy.


  1. thank you very much for helping me understand this topic.

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