Energy Fundamentals: Forms, Sources, and Production
Energy is the capacity of a body or system to make changes.
Forms of Energy
As per the law of conservation of energy, "Energy is neither created nor destroyed, only transformed." Energy can manifest itself in several ways:
- Mechanical energy: Associated with motion (e.g., lifting a backpack).
- Thermal energy: Related to temperature (e.g., warm water).
- Chemical energy: Associated with chemical reactions (e.g., coal combustion).
- Nuclear energy: Derived from the decay of radioactive substances.
- Radiant energy: Associated with electromagnetic radiation (e.g., light, microwaves).
- Electrical energy: Related to the movement of electric charges.
Energy Sources and Classifications
We refer to conventional sources as those that provide most of the energy in various...