Physics and chemistry


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Physics and chemistry

  1. 1. Physics and Chemistry
  2. 2. E nergy <ul><li>Energy is a physical quantity that describes the amount of work that can be performed by a force. Energy can be recycled or not recycled. </li></ul><ul><li>The Sun is a recycled energy </li></ul><ul><li>The coal isn’t recycled energy </li></ul>
  3. 3. E nergy sources <ul><li>Renewable energy is energy generated from natural resources, some renewable energies are wind power, solar power or wave power. </li></ul><ul><li>Non renewable energy. Non-renewable energy is energy, taken from &quot;finite resources that will eventually dwindle, becoming too expensive or too environmentally damaging to retrieve&quot;, as opposed to renewable energy sources, which &quot;are naturally replenished in a relatively short period of time.&quot; </li></ul>
  4. 4. R enewable <ul><li>Some of renewable energies can be solar, wave or wind power. </li></ul><ul><li>We can obtain this energy with solar panels or with very big windmills. </li></ul><ul><li>All of this energy has been in the nature directly from sun or wind. </li></ul>
  5. 5. W ind power <ul><li>For collected this energy we used windmills this have got a dynamo when the blades rotate the dynamo produces energy. </li></ul>
  6. 6. W ave energy <ul><li>We obtain this energy directly from the sea. </li></ul><ul><li>When waves move this span a turbine and produce energy with a dynamo. </li></ul>
  7. 7. S olar energy <ul><li>This energy has been produced by sun. </li></ul><ul><li>We use solar panels to collect this photovoltaic energy. </li></ul>
  8. 8. Geothermal power <ul><li>We use the hot inside on the heart to move turbines and then with a dynamo transform the movement in electric energy. </li></ul>
  9. 9. B i omass <ul><li>Biomass is solar energy converted by the vegetation on organic matter, we can recover this energy by direct combustion or transforming organic matter into fuels. </li></ul>
  10. 10. M unicipal Solid Waste <ul><li>Municipal Solid Waste (MSW) are those that originate in the household and commercial cities and towns. In the developed countries are increasingly using more packaging, paper, and where the culture of &quot;use and throw&quot; has spread to all sorts of consumer goods, the quantities of waste being generated has grown up reach very high figures. </li></ul>
  11. 11. Non-renewable <ul><li>This energy takes a lot of time to renew. </li></ul><ul><li>Some of this energy are petrol, coal or radioactive elements. </li></ul><ul><li>We use this elements to heat water and them this water goes to a turbine and this turbine move a lot and generated energy. </li></ul>
  12. 12. C oal <ul><li>Coal has produced by burnt wood and them this comber in coal below a lot of years the types of coal has hull, lignite, anthracite and turban. </li></ul>
  13. 13. Petrol <ul><li>Oil is burned and the heat evaporates the water and that water passes through turbines with a generator to produce energy. </li></ul>
  14. 14. N uclear energy <ul><li>The atoms of a heavy nuclear materials are bombarded with neutrons and a shock releases a large amount of heat energy that evaporates the water and in a nuclear plant that water passes through turbines to produce electricity with a dynamo. </li></ul>