energy sources Flashcards
Fuel formed by natural processes, such as anaerobic decomposition of dead organisms, that contain energy from ancient photosynthesis
Fossil Fuel
a black combustible rock made up of Carbon, Oxygen, Hydrogen, Phosphorous, and varying amounts of Sulfur. The more carbon content, the more energy is released.
Coal
Composed of complex hydrocarbons. From Latin word “petra” rock, and “oleum” oil
Petroleum
Hydrocarbon mostly made up of methane
Natural Gas
How is Earth’s internal heat produced
due to radioactive decay, and heat loss due to Earth formation
A source of energy using the internal heat of the Earth
Geothermal Energy
How do we use or harness geothermal energy
Piping systems underground (Geothermal pumps)
Digging deep wells that can tap reservoir of steam and hot water that can power the turbines (Geothermal power plants)
Energy made by flowing or moving water
Hydroelectric energy
Power generated by the falling or the fast running of water
Hydropower
Use of hydropower to generate electricity
Hydroelectricity
How does hydropower plants work
they capture the energy of falling water to generate electricity
Advantages of using hydroelectric energy
flexibility, low cost/ high value power, suitability for industrial applications, reduced co2 emission, others
Concerns of fossil fuels
Air pollution, melting of ice caps, increase in atmospheric temperature, concentration of acid rain, ozone depletion
Concerns of Geothermal Energy
Induced Seismicity and Earthquake due to human activity, impact on wildlife and vegetation
Concerns of Hydropower
Ecosystem damage, and loss of land, water loss by evaporation, siltation and flow shortage, methane emission, relocation, failure risk
