energy resources

Question 1

what is a renewable energy source?

Answer 1

an energy source that is replenished at a faster rate than the rate at which it is being used

Question 2

what are examples of renewable energy?

Answer 2

solar, wind, hydroelectric, bio-fuel, geothermal and tidal

Question 3

what are examples of non- renewable energy?

Answer 3

fossil fuels, nuclear fuel

Question 4

how is electricity generated?

Answer 4

a turbine is turned- turns a generator- turns on electricity

Question 5

how is electricity generated in hydroelectric and tidal?

Answer 5

water is used to turn turbines, energy in KE store of the water is transferred to the KE store of the turbine, then to the KE store of the generator then transferred electrically to the national grid

Question 6

what stores are involved in hydroelectric power?

Answer 6

GPE store of water- KE store mechanically to turn a turbine

Question 7

how is energy created from fossil fuels??

Answer 7

combusted to heat water- steam produced can be used to turn turbines
energy from chemical store- thermal store water- KE store of turbine- KE store of generator- electrically to national grid

Question 8

how is electricity generated with nuclear fuel?

Answer 8

heat water- produces steam to turn turbines

Question 9

nuclear fuel?

Answer 9

nuclear store of fuel- thermal store of water- KE store of turbine- KE store of generator

Question 10

how is electricity generated in geothermal?

Answer 10

produces steam to turn the turbines, water is pumped down to the hot rocks and returns through a fissure as steam
cold water is heated by the rocks and returned as hot water/steam- used to turn turbines to generate electricry