Higher June 2022 Paper 6 Q3
3 Light from the Sun travels 1 kilometre in \(3.3 \times 10^{-6}\) seconds.
The distance from the Sun to the Earth is \(1.5 \times 10^8\) kilometres.
How long does it take light to travel from the Sun to the Earth?
Give your answer in minutes and seconds. [4]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 8 min 15 sec | 4 | B3 for 8.25 or \(8\frac{1}{4}\) or \(8\frac{15}{60}\) or for answer 8m 25s | |
| OR M1 for \(3.3 \times 10^{-6} \times 1.5 \times 10^8\) oe soi by figs 495 M1FT for (their 495 ÷ 60) | eg \(\dfrac{1.5 \times 10^8}{303030[.3\ldots]}\) their 495 from attempt at a correct M1 expression | ||