P3 - Energy resources

Question 1

What is a biofuel?

Answer 1

Any fuel taken from lining or recently living organisms, they are renewable sources of energy - carbon neutral

Question 2

What can methane be used for?

Answer 2

Small gas fired power stations

Question 3

What is the element used in nuclear power plants?

Answer 3

Uranium

Question 4

How is energy made at a nucleur power plant?

Answer 4

Uranium atom nucleus is split which gives off energy making it very hot, energy then transferred by coolant into heat exchanger which gives off steam and turns steam turbines to generate electricity

Question 5

What is the issue with a wind turbine?

Answer 5

Reliant on the weather

Question 6

Give 3 examples of energy generated from water?

Answer 6

Wave power, hydroelectric power, tidal power

Question 7

What is geothermal energy?

Answer 7

Comes from energy released by radiative substances deep within the earth, often built around volcanic areas (geothermal power stations)

Question 8

Give 2 advantages if renewable energy sources and 3 disadvantages?

Answer 8

Never run out, no greenhouse gases - Cannot meet human demand, sound pollution from e.g. wind turbines

Question 9

What costs are there when building around big energy usage?

Answer 9

Capital cost,, maintenance cost, cost of building new energy facilities

Question 10

Give 2 problems with the supply and demand of energy?

Answer 10

Demand grows each day always increasing, higher in winter than in summer

Question 11

What are reliability problems for certain energy facilities?

Answer 11

Hydroelectric - reservoir could run dry
Wind - Wind too weak
Waves - Waves too weak
Tidal - Height of waves Varys in seasonal (monthly)
Solar - None at night and cloudy in daytime