accept from the generator by accept Energy or ‘transferred ‘Ocean Thermal Conversion’ electricity’ ‘OTEC’ accept in the turbine to electrical energy in the do not accept ‘KE. ‘hydro-electric power’ 1 circuit’ (d) it is easier to control or it can be turned on accept energy in the water to electrical ‘potential when it is needed energy in accept tides only give power at certain times’ ‘the the for both marks circuit’ or can build an oil-fired power station ‘you accept to electrical energy’ ‘P.E. anywhere’ or the water to the for one mark ‘from circuit’ or is smaller` ‘it 2 (b) any one from any one from because the or gravity is always oil is non-renewable • Moon’s pull • there accept will run ‘oil out’ because the tides or the water cannot run out it causes pollution • • or be used up accept gives out ‘it greenhouse gases’ accept there are tides or cause oil ‘because every day’ ‘it can spills’ or there is an 1 ‘because endless supply’ [6] 1 (c) from wave energy from the waves or •
accept ‘transferred from the generator by electricity’ accept ‘KE. in the turbine to electrical energy in the circuit’ accept ‘potential energy in the water to electrical energy in the circuit’ for both marks accept ‘P.E. to electrical energy’ or ‘from the water to the circuit’ for one mark 2 (b) any one from • because the Moon’s pull or gravity is always there • because the tides or the water cannot run out or be used up accept ‘because there are tides every day’ or ‘because there is an endless supply’ 1 (c) • from wave energy or from the waves accept ‘Ocean Thermal Energy Conversion’ or ‘OTEC’ do not accept ‘hydro-electric power’ 1 (d) it is easier to control or it can be turned on when it is needed accept ‘the tides only give power at certain times’ or ‘you can build an oil-fired power station anywhere’ or ‘it is smaller` any one from • oil is non-renewable accept ‘oil will run out’ • it causes pollution accept ‘it gives out greenhouse gases’ or ‘it can cause oil spills’ 1 [6]