Quiz 4 Flashcards
1
Q
What are three terms associated with black holes?
A
- Event horizon.
- Singularity.
- Schwarzschild radius.
2
Q
Stars fuse helium in the triple alpha process mostly into:
A
Carbon.
3
Q
What is the most important factor of a star that determines its final fate?
A
Mass
4
Q
Most of the stars in the sky will end their lives as:
A
White dwarfs
5
Q
White dwarfs do not collapse due to gravity any more because of:
A
Electron degeneracy pressure.
6
Q
How big is a white dwarf?
A
The size of the Earth.
7
Q
A spinning neutron star whose magnetic field axes sometimes points towards the Earth is called a:
A
Pulsar
8
Q
Black holes are black because:
A
Gravity is so strong in them that not even light can escape.
9
Q
The current best explanation for gamma ray bursters is:
A
A large supernova called a hypernova.
