Particles, forces and the big bang Flashcards
1
Q
What is Cosmology
A
The science of the origin and development of the universe
2
Q
What is the Cosmological Principle?
A
Viewed on a sufficiently large scale, the properties of the universe are the same for all observers
All observers in universe would thus agree on large scale structure and properties of the universe
3
Q
What are the three assumptions of the Cosmological Principle
A
Universality, Homogeneity and Iostropy
4
Q
What is Universality?
A
The law of physics are the same everywhere, even if conditions vary from place to place or time to time
4
Q
What is Homogeneity?
A
Matter is evenly distributed throughout the universe
5
Q
What is Isotropy?
A
No direction is special. The universe looks the same in all directions
6
Q
A
7
Q
A
