Astro 1500 Trivia October 25, 2024 - Lectures 15 and 16

Quiz
•
Physics
•
University
•
Hard
Standards-aligned

Amanda Weinstein
Used 16+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Horizontal branch stars fuse helium, and helium fusion makes less energy than hydrogen fusion. So then, why does a horizontal branch star have a higher luminosity than a main sequence star?
Helium fusion happens faster
The helium fusing core is much larger than the hydrogen fusing core was
The star is fusing hydrogen and helium in the core
The star is fusing hydrogen in shells and helium in the core
Tags
NGSS.HS-ESS1-1
NGSS.HS-ESS1-3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A question to give you a sense of how much of a star's mass is in the core--what birth mass of a star corresponds to a core mass of 1.4 solar masses?
1.4 solar masses
2 solar masses
8 solar masses
16 solar masses
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What keeps a white dwarf from collapsing?
Carbon's resistance to compression
Electrons that have the same properties as other electrons
Neutrons that have the same properties as other neutrons
Oxygen's resistance to compression
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if a white dwarf becomes more massive than 1.4 solar masses?
CRUNCH!
Dude, chill. It just gets more massive.
BOOM!
Tags
NGSS.HS-PS1-8
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
What happens when the core bounces before a supernova?
Trapped neutrinos escape
A shockwave blasts through the star
A black hole is formed
The star "gurgles" before exploding
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is better at resisting collapse?
Neutron degeneracy pressure
Electron degeneracy pressure
They are equivalent, just present in different environments
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
How do neutron stars become mostly neutrons?
The MS lifetime of the star made neutron-rich elements
Neutrons are captured from the supernova remnant
Extreme pressures merge electrons and protons
The protons are annihilated in the supernova
Tags
NGSS.HS-PS1-8
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