Tecnology work

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This is a work that pupils of 2º ESO of the Rodríguez Moñino secondary school in the subject of technology.

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Tecnology work

  1. 1. EnergyDaniel and MartaSerrano Figueredo
  2. 2. INDEX Energy definition● Types of energy● Energy sources● Renewable energy● Non renewable energy● Types energy of power station:Hidra, solar, nucl., term, eólic
  3. 3. Energy definition● Definition: Energy is the capacity of a physical system to perform work.
  4. 4. Types of energy● Mechanical energy● Electrical● Electromagnetic energy● Sound energy● Chemical energy● Nuclear energy● Thermal or calorific energy
  5. 5. Mechanical energy● Kinetic energy● Potential energy
  6. 6. Kinetic energy● Energy that objects have when theyre in motion
  7. 7. ● Energy that objects have when theyre moved from their stable position of equilibrium Potential energy
  8. 8. ● Energy associated with an electrical current Electrical energy
  9. 9. Electromagnetic energy● Transported by electromagnetic waves, such as radio, television or X-ray waves
  10. 10. Sound energy● Associated with the sound waves that are transmitted through vibrations.
  11. 11. Chemical energy● Stored in substances – it can be released or absorbed during chemical processes
  12. 12. Nuclear energy● Contained the nuclei of atoms
  13. 13. Thermal or calorific energy● Comes from the vibration of particles in matter
  14. 14. ● Renewable energy● Non-renewable energy Energy
  15. 15. Renewable energy sources● Hydraulic energy● Solar energy● Wind energy● Marine energy● Geothermal energy● Biomass
  16. 16. Hydraulic energy● Hydraulic energy is what is produced by the water wich stored in reservoirs and lakes at high altitude.
  17. 17. Solar energy● Solar energy, radiant light and heat from the sun.
  18. 18. Wind energyWind energy is the energy from wind, that is,the kinetic energy generated by the effect ofair currents, and is transformed into other use-ful forms for human activities.
  19. 19. Marine energy● Marine energy refers to the energy carried by ocean waves, tides, salinity, and ocean temperature differences.
  20. 20. Geothermal energy● Geothermal energy is thermal energy generated and stored in the Earth. Thermal energy is the energy that determines the temperature of matter.
  21. 21. Biomass● Biomass, as a renewable energy source, is biological material from living, or recently living organisms. As an energy source, biomass can either be used directly, or converted into other energy products such as biofuel.
  22. 22. Non-renewable energy● Nuclear energy● Coal● Petroleum● Natural gas
  23. 23. Nuclear energy● Nuclear energy usually means the part of the energy of an atomic nucleus, which can be released by fusion or fission or radioactive decay
  24. 24. Coal● Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams.
  25. 25. ● Petroleum or crude oil is a naturally occurring, flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid organic compounds, that are found in geologic formations beneath the Earths surface. Petroleum
  26. 26. Natural gas● Natural gas is a naturally occurring hydrocarbon gas mixture consisting primarily of methane
  27. 27. Wind turbine creates water from thin air● Eole Water have invented a new type of eolic turbine that produce drinking water from humid air.● A turbine can produce, filter and purify the water up to 1,000 litres of drinking water every day.● This is a solution clean and sustainable way to provide water to isolated rural communities, in Africa and South America as well as remote islands in Asia but nowadays is a expensive solution.
  28. 28. Resourceshttp://www.tecno12-18.com/http://fernandosax.wordpress.com/Technologies book- Oxford Education. ESO I.Jesús Moreno Márquez and ...

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