DP Physics (last assessment 2024)
Question 18M.3.SL.TZ1.10
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.3.SL.TZ1.10 |
| Level | SL | Paper | 3 | Time zone | TZ1 |
| Command term | Distinguish | Question number | 10 | Adapted from | N/A |
10.
[Maximum mark: 2]
18M.3.SL.TZ1.10
(a.i)
Distinguish between the solar system and a galaxy.
[1]
Markscheme
a galaxy is much larger in size than a solar system
a galaxy contains more than one star system / solar system
a galaxy is more luminous
Any other valid statement.
[1 mark]
(a.ii)
Distinguish between a planet and a comet.
[1]
Markscheme
a comet is a small icy body whereas a planet is mostly made of rock or gas
a comet is often accompanied by a tail/coma whereas a planet is not
comets (generally) have larger orbits than planets
a planet must have cleared other objects out of the way in its orbital neighbourhood
[1 mark]