3 - Energy Resources Flashcards
A biofuel is…
Fuel taken from living or recently living organisms.
Examples of biofuels are…
Biodiesel - waste vegetable oil & plants
Ethanol
Woodchip
Straw
How does nuclear fuel work?
A uranium atom’s nucleus is prone to split, which releases heat energy. A coolant carries the energy to turn water into steam which powers electricity generators.
How does wind power work?
Wind turns turbines that generator electricity
How does wave power work?
Floating generators are powered by the movement of the waves and connected to city power by cables.
How does hydroelectric power work?
Water flowing downhill turns turbines to generate electricity.
How does tidal power work?
Collect high tide and release to turn turbines and generate electricity.
Tidal flow passing through undersea turbines.
How do solar power towers work?
Mirrors reflect light towards a water tank, creating steam that turn turbines.
How does geothermal energy work?
Heat energy released by radioactive rocks turns water to steam and turns turbines.
Nuclear and coal power are used for…
the base load demand.
Gas and pumped storage power are used for…
higher demand.
Renewable power is used for…
low demand or to store energy.
