P3- Sustainable Energy Ocr 21st century Module P3 0.0 / 5 ? PhysicsP3- Sustainable EnergyGCSEOCR Created by: Liem Mao-TranCreated on: 23-05-16 18:00 Why is energy transferred at high voltages? To reduce the amount of energy loss 1 of 9 How do you find out energy transferred? Power x Time 2 of 9 How do you find out power? Voltage x Current 3 of 9 What is a sankey diagram? A diagram showing the use of energy 4 of 9 Is electricity a primary or secondary energy source? Secondary energy source 5 of 9 What main gas does fossil fuels release when burnt? Carbon dioxide 6 of 9 Why is it difficult to replace fossil fuels? Other sources have high running costs and may not produce much energy. 7 of 9 Nuclear power stations don't produce CO2 emissions, so why are they used less than fossil fuels? They're are very dangerous and could cause cancer and death if not controlled properly. 8 of 9 Why aren't renweable energy sources used alot? They don't produce as much eletricity as non-renewable energy sources 9 of 9
Comments
No comments have yet been made