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Stack #4651282
| Question | Answer |
|---|---|
| Biofuel | a fuel delivered from biomass, such as plant or algal material or animal waste |
| Coal | a brown/black sedimentary rock formed by compression of plant material over a long period. Rich in carbon and can be burned as a fuel source |
| Energy conservation | the deliberate reduction in the use of energy and electricity via the use of devices and designs that use less energy to produce the same output |
| Fossil fuel | a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms |
| Geothermal energy | energy derived from geothermal activity, normally in the form of hot water for heating or steam that is used to drive turbines to produce electricity |
| Hydroelectric power | the production of electricity via the use of water moving through turbines connected to electrical generators |
| Hydrogen fuel cell | an electromechanical cell that uses hydrogen as a fuel source and oxygen as an oxidizer. Electricity is produced when electrons are striped from hydrogen gas and forced to travel around a circuit before uniting with oxygen and hydrogen ions to form water |
| Natural gas | a naturally occurring fossil fuel that is a mixture of short chain hydrocarbons (primarily methane) and forms as part of the natural production of oil |
| Non-renewable energy | energy production using fuels that can not be replaced or renewed in feasible time periods. Usually refers to the production of energy using fossil fuels or radioactive materials |
| Nuclear fission | the splitting of a large atomic nucleus into two smaller atomic nuclei, normally by the introduction of a neutron |
| oil | a liquid fossil fuel formed by intense heat and pressure on the remains of ancient, dead marine organisms |
| Photovoltaic cell | the conversion of light into electricity using semiconducting materials that exhibit the photovoltaic effect |
| Renewable energy | useful energy (normally as electricity) produced using energy sources that can be replenished by the environment, e. G. wind turbines, photovoltaic cells |
| Solar energy | useful energy (usually as electricity) derived from sunlight. System may include photovoltaic cells, heliostat and power tower designs, or solar based water heating |
| Watt | the SI unit of power, measured in joules per second (J/s) |
| Wind energy | form of renewable energy derived from harnessing the movement of air currents in the atmosphere using equipment such as wind mills and wind turbines |
| Wind turbine | device designed to transform the energy in the wind into electrical energy via a generator connected to large, wind driven, propeller - like blades |
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user-2009233