Higher June 2018 Paper 2 Q3
3.
1 AU is 1 astronomical unit.
1 AU = \(1{\cdot}496\times10^8\) km, which is the distance from the Sun to Earth.
The distance between the planet Mercury and Earth can vary from 0·515 AU to 1·48 AU.
Complete the statement below.
Use kilometres written in standard form correct to 2 significant figures.
‘The distance between the planet Mercury and Earth can vary from ………………… km to ………………… km.’ [3]
| Scheme | Marks | Comments |
|---|---|---|
| \(7.7\times10^7\) AND \(2.2\times10^8\) | B3 | B2 for sight of either \(7.7\times10^7\) OR \(2.2\times10^8\), or for sight of 77 000 000 AND 220 000 000, or for sight of \(7.704(4)\times10^7\) AND \(2.21(408)\times10^8\) B1 for sight of \(0.515\times1.496\times10^8\ (= 7.7044\times10^7)\) OR \(1.48\times1.496\times10^8\ (= 2.21408\times10^8)\) |
| (3) |