Chapter 20 Univeres Flashcards
1
Q
Star
A
Huge spheres of gas
2
Q
Light year
A
The distance traveled in one year at light speed
3
Q
Red giant
A
It’s surface is cooler than the core that’s why it’s red
4
Q
White dwarf
A
Denser than a red giant its core is no longer hot enough to cause fusion
5
Q
Supernova
A
A huge bright explosion
6
Q
Black hole
A
Traps all light in it and has the most gravity
7
Q
Nebula
A
Stars are born in nebulas
8
Q
Galaxy
A
It’s where loads of stars are.
9
Q
Interstellar matter
A
It allows for more stars
10
Q
Quasar
A
Has a huge black hole in the center
11
Q
Neutron star
A
Also known as pulsars
12
Q
Super cluster
A
Thousands of galaxy’s
13
Q
Universe
A
Everything in space and time
14
Q
Red shift
A
Can be explained by the Doppler effect
15
Q
Blue shift
A
When an object approaches us it turns to the blue end of the spectrum
