P1 for 39(.0625) A1 3 B2 Correct construction showing all necessary arcs. construction (B1) (Pair of intersecting arcs centred on and A B) 4 (a) and 3.2 B2 for both roots correct –1.2 (B1) (for one correct root) (b) (1, B1 cao –5) 5 134 P1 Process to find the distance around one or both ends of the track, e.g. × 54 (= 169.6460033) or ( × 54) ÷ 2 (=84.82300165) π π (dep on P1) complete process to find the total length of the track, P1 e.g. 40 × 2 + “169.6460033” (=249.6460033) P1 Process to find the circumference of wheel, e.g. × 590 (=1853.539666 mm) or ×0.59 (= 1.85353966 m) π π P1 Complete process to find the number of revolutions in consistent units, e.g. ÷ or unrounded answer of 134.6860863 “249.64…” “1.85…” cao A1 6 Elevation B2 Fully correct side elevation (B1) (a rectangle 4 high by 2 wide)
P1 A1 for 39(.0625) 3 construction B2 (B1) Correct construction showing all necessary arcs. (Pair of intersecting arcs centred on A and B) 4 (a) (b) –1.2 and 3.2 (1, –5) B2 (B1) B1 for both roots correct (for one correct root) cao 5 134 P1 P1 P1 P1 A1 Process to find the distance around one or both ends of the track, e.g. π × 54 (= 169.6460033) or ( π × 54) ÷ 2 (=84.82300165) (dep on P1) complete process to find the total length of the track, e.g. 40 × 2 + “169.6460033” (=249.6460033) Process to find the circumference of wheel, e.g. π × 590 (=1853.539666 mm) or π ×0.59 (= 1.85353966 m) Complete process to find the number of revolutions in consistent units, e.g. “249.64…” ÷ “1.85…” or unrounded answer of 134.6860863 cao 6 Elevation B2 (B1) Fully correct side elevation (a rectangle 4 high by 2 wide)
GCSE%201MA1%20Mark%20Scheme%202H%20Mock%20Set%202.docx