Energy / Flashcards
Energy generation
- Fossil fuels
* Renewable energy
Fossil fuels
Most forms of electricity production involve rotating a turbine which turns a generator. Fossil fuels are burned to create heat which in turn superheat water. The resulting steam is used to rotate turbines which are linked to a generator to provide us with a supply of electricity.
Renewable energy
In the case of wind, water and hydroelectric energy production, the energy harnessed from the wind, waves or falling water is converted into mechanical energy which directly rotates the turbine. A generator then converts the mechanical energy from the turbine in to electrical energy.
Kinetic energy
Kinetic energy is involved in motion. Any object in motion has kinetic energy - a ball thrown, a person walking, an object falling.