Black Holes, Neutron Stars, and White Dwarfs (Collab. w/ MinuteEarth)
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Physics
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Hard
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4 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary process that defines a celestial body as a star?
Gravitational collapse of gas and dust
Nuclear fusion of hydrogen in its core
Emission of light and heat
Orbiting a galactic center
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which physical principle prevents a white dwarf from collapsing further under its immense gravity?
The strong nuclear force
Neutron degeneracy pressure
Electron degeneracy pressure
Thermal pressure from nuclear fusion
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A star with an initial mass approximately 8 to 18 times that of the Sun is likely to end its life as which type of stellar remnant?
A white dwarf
A brown dwarf
A neutron star
A black hole
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the core of a dying star if its mass is too great for both electron degeneracy pressure and neutron degeneracy pressure to resist gravitational collapse?
It becomes a brown dwarf
It expands into a red giant
It forms a black hole
It undergoes a supernova explosion and dissipates
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