DP Physics (last assessment 2024)
Question 17N.3.SL.TZ0.12a
| Date | November 2017 | Marks available | [Maximum mark: 1] | Reference code | 17N.3.SL.TZ0.12a |
| Level | SL | Paper | 3 | Time zone | TZ0 |
| Command term | State | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 1]
17N.3.SL.TZ0.12a
Sirius is a binary star. It is composed of two stars, Sirius A and Sirius B. Sirius A is a main sequence star.
(a)
State what is meant by a binary star.
[1]
Markscheme
two stars orbiting a common centre «of mass»
Do not accept “stars which orbit each other”
