Universe and Galaxies
IGCSE Edexcel Physics
8.2 Universe and Galaxies
Key Concepts:
The universe contains billions of galaxies, each with billions of stars.
Section A: Facts
1. Define a galaxy.
[2]
2. State the name of the galaxy containing our solar system.
[1]
Total marks: 3
Mark Scheme
1.
A large collection of billions of stars and gas [2]
2.
Milky Way [1]