4MA0 Foundation June 2015 Paper 1 Q18
18 A steam engine for pulling trains has wheels of diameter 1.5 metres.
(a) Calculate the circumference of a wheel.
Give your answer correct to 3 significant figures. (2)
Give your answer correct to 3 significant figures. (2)
The steam engine travels 1000 metres along a test track.
(b) Work out the number of complete turns of a wheel. (2)
| Scheme | Marks |
|---|---|
| \(1.5 \times \pi\) or \(2 \times \pi \times (1.5 \div 2)\) | M1 |
| 4.71 | A1 |
| (2) |
Notes
A1: 4.71 - 4.72
| Scheme | Marks |
|---|---|
| 1000 ÷ “4.71” | M1 |
| 212 | A1 |
| (2) | |
| Total 4 marks |
Notes
M1: ft from (a) (accept use of rounded answer from (a) for method mark only)
A1: ft from (a) provided working is shown (must round down to integer value)