Energy : Basics and Various Sources

Written On Friday, February 10th, 2017 At 03:40:47 am By Sunil Saharan
1089 Times
This article gives basics about energy and explain various properties of energy. It also gives various forms of energies available in the world/universe.

Energy: Definition and Basics

Energy is something which cannot be seen directly but can be experienced and makes us able to do some work. In short ability to do some work by a body or system is called energy. We take energy in various forms like our food, sunlight etc. Without energy no system (including our body) can perform any task. Hence energy is the basic need of human society.

Energy: Properties

Energy can be experienced and is not visible directly. You can see the efforts made and the work being done but not energy. There are many other properties of energy. Most important of them is universal nature of energy.
Energy can neither be created nor be destroyed. It just changes its form.
We may see different forms or nature of works but the energy doing that work remains same. For example you convert chemical energy of coal into heat and that heat into electricity with the help of steam turbine and water and the same electricity can be converted into light energy from a LED (Light Emitting Diode). This shows how energy changes it form.

Energy: Various Forms

Energy exists in various forms, as stated earlier. Some very common forms of energy are as below :
  • Electrical Energy
  • Mechanical Energy
  • Kinetic Energy (Due to Movement or Speed)
  • Potential Energy (Due to Position or Height)
  • Chemical Energy
  • Atomic/Nuclear Energy
  • Solar Energy
  • Wind Energy
  • Tidal Energy
  • Sound Energy
  • Heat/Thermal Energy
  • Geothermal Energy
I will discuss these energies in detail in later articles.

Energy: Various Sources

All above forms of energy are extracted from various sources like Sun, Atoms, Wind, Chemical compounds, Sea etc. All these sources of energy are classified into two categories as given below:
  • Conventional/Non Renewable Sources of Energy
  • Non-Conventional/Renewable Sources of Energy
Conventional/Non Renewable Sources of Energy are those sources which are being used since long time and cannot be renewed i.e. once used the cannot used again. Once you used such source for energy they cannot be used again. For example Coal, Diesel, Petrol etc.
Non-Conventional/Renewable Sources of Energy are those sources which are relatively new and these can be renewed i.e. can be used again and again. Once you used such source for energy they can be used again to give energy to you. For Example Sun, Wind, Tidal Energy etc. These are discussed in detail at Non Conventional Sources of Energy : Basics, Advantages, Disadvantages and Challenges

Tags :Basics of Energy, Various Forms of Energy, Definition of Energy, Types of Energy Resources
Article Was Last Updated on Sunday, February 12th, 2017 At 10:48:22 am


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Sunil SaharanAn Engineer

I'm Sunil Saharan, An Electrical Engineer by chance and a Web developer by choice. I love HTML, CSS, JS, Bootstrap and PHP off course. This site is my effort to share my little knowlege with the world.

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