generating electricity 0.0 / 5 ? PhysicsEnergyGCSEAQA Created by: Charlie FinkCreated on: 31-10-14 19:10 energy sources which are used to generate electricity non renewable and renewable energy resources. 1 of 16 processes that go on in different power stations stored chemical energy is converted into thermal energy. 2 of 16 thermal energy is used to heat water to produce steam. steam drives the turbine converting heat into kinetic energy. 3 of 16 the turbine is connected to a generator transfers kinetic energy into electrical energy. 4 of 16 electricity is generated directly from the wind turning the blades which turns the generator. wind power 5 of 16 generate electric currents directly from sunlight. The best source of energy for watches and calculators. solar cells. 6 of 16 requires the flooding of a valley by building a big dam. hydroelectric power 7 of 16 spare nightime electricity used to pump water up to a higher reservoir. pumped storage 8 of 16 as waves come to the shore they provide an up and down motion which can be used to drive the generator. wave power 9 of 16 as the tide comes in it fills up an estuary to a height of several metres. tidal barriages 10 of 16 it also drives the turbines. water can be allowed out through the turbines at a controlled speed. 11 of 16 only possible in volcanic area where hot rocks lie quite near the surface. geothermal energy 12 of 16 source of geothermal energy slow decay of various radioactive elements deep inside the earth. 13 of 16 takes electricity from power stations to where it is needed in homes and industry. national grid 14 of 16 parts of the national grid. power station, transformers, consumers. 15 of 16 transformers have to step up the voltage at one end for efficient transmission then bring it back to safe useable levels at the other end. transformers 16 of 16
Comments
No comments have yet been made