Work Power High order marking scheme

- Mark Scheme /


Question Answer Marks AO Element Notes Guidance

1 water flows / falls / moves 3
(through pipes to turbines) (1)
(water) turns / drives / spins
turbine (1)
turbine drives / turns / spins
generator (1)

2 any two from: 2
(stored energy OR elastic
potential energy OR it)
decreases
kinetic energy (of masses)
increases
gravitational potential energy
increases

3 renewable / yes (1) 2
crops can be regrown (to
replace resource) / waste
materials don’t run out (1)

4 (G) D (C) A (F) B E 3 all four correct = 3
marks
three correct = 2 marks
two correct = 1 mark