Work and energy

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Work and energy

  1. 1. Wind energy is the conversionof wind power into usefulform of energy, such as using :wind turbines for makingelectrical power , wind millsfor mechanical power , windpumps for water pumping anddrainage, or sails to propelship.
  2. 2. Geothermal energy is thermal energy generatedand stored in the Earth. Thermal energy is theenergy that determines the temperature ofmatter. The Geothermal energy of the Earthscrust originates from the original formation ofthe planet (20%) and from radioactive decay ofminerals (80%)
  3. 3. Biomass is biological material from living, orrecently living organisms, most often referring toplants or plant-derived materials. As a renewableenergy source, biomass can either be useddirectly, or indirectly -- once or converted intoanother type of energy product such as biofuel.Biomass can be converted to energy in threeways: thermal conversion, chemical conversion,and biochemical conversion.

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