Cosmology 31.4 Flashcards
1
Q
Cosmology
A
study of how the universe began, what is made of, and how it continues to evolve
2
Q
Big Bang Theory
A
theory about 13.7 billion years ago, the entire universe was contained in a single point that began expanding outward
3
Q
Cosmic Background Radiation
A
residual radiation from the formation of the universe; predicted by the big bang theory and later detected in 1965
4
Q
Dark Matter
A
type of matter that cannot be seen and can only be detected by its gravitational effects
5
Q
Dark Energy
A
energy that might be causing the accelerating expansion of the universe
6
Q
How long ago did the Big Bang occur?
A
13.7 billion years ago
7
Q
What is the name of the effect that shows the changes in light weight?
A
Doppler effect
8
Q
What is the universe made of?
A
regular matter and dark matter
