Energy by Julia, Nerea and Alicia

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Energy by Julia, Nerea and Alicia

  1. 1. Julia Martinez Ariza Nerea Silva Sanchez Alicia Romero Viñas
  2. 2. Energy is the ability of an object to change things around it. Energy can be mechanical, light, thermal,electrical, chemical or nuclear.
  3. 3. SOURCES OF ENERGY OTHER SOURCES OF ENERGY  Fuels are sources of chemical energy. Coal, natural gas and petroleum are fuels  Water is a source of mechanical energy.  Wind is a source of mechanical energy.  Uranium and plutonium are sources of thermal energy.  The Sun.  Biomass.  Waves and tides.
  4. 4.  Renewable: water, wind, sun, biomass, waves and tides. Non-renewable: fuels, uranium and plutonium.
  5. 5. Electricity is a form of energy:  We can transport easily through power lines.  It transform into other types of energy, like the light energy of a light bulb.
  6. 6. Static electricity:it occurs when an object accumulates electrical charge.  An objetc is neutral when it has the same number of positive and negative charges.  An object is positively charged when it has more positive than negative charges.  An object is negatively charged when it has more negative than positive charges. Objets with different electrical charges will attract each other, and objets with the same electrical charges will repel each other.
  7. 7.  Electrical charges move easily through conducting materials.  Electrical charges cannot move through insulating materials like wood, rubber and plastic.
  8. 8. Conductor reciver Generetor Switch
  9. 9. HYDROELECTRIC POWER STATION
  10. 10. NUCLEAR POWER STATIONS
  11. 11. THERMAL POWER STATIONS
  12. 12. WIND FARMS AND SOLAR POWER STATIONS
  13. 13.  Changes in the landscape.  Depletion of non-renewable energy sources.  Pollution.
  14. 14.  Turn off the lights.  Use public transport.  Turn off heaters and insulate homes.  Practise the 3 R’s:reduce, reuse and recycle.

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