(iii) any one from: use the internet • brochures • reading adverts • visiting shops • recommendation from friends / plumbers • 1 [5] Q43. (a) (i) heat 1 (ii) temperature increases or (cause) convection (currents) accept gets warmer accept gets hotter 1 (iii) 60% or 0.6 60 without % scores 1 mark 0.6 with a unit scores 1 mark 60 with incorrect unit scores 1 mark or correct substitution for 1 mark 2 (b) street 1 more (energy transferred as) light or less (energy transferred as) heat or useful energy output the highest
(iii) any one from: • use the internet • brochures • reading adverts • visiting shops • recommendation from friends / plumbers 1 [5] Q43. (a) (i) heat 1 (ii) temperature increases or (cause) convection (currents) accept gets warmer accept gets hotter 1 (iii) 60% or 0.6 60 without % scores 1 mark 0.6 with a unit scores 1 mark 60 with incorrect unit scores 1 mark or correct substitution for 1 mark 2 (b) street 1 more (energy transferred as) light or less (energy transferred as) heat or useful energy output the highest