Stellar Evolution - 2

Where does star formation primarily occur?

• Open clusters

• Globular clusters

• Giant molecular clouds

• Interstellar space

What determines a star's lifespan on the Main Sequence?

• Temperature

• Luminosity

• Mass

• Composition

What is the final stage for a low-mass star (like our Sun) after the Main Sequence?

• White dwarf

• Neutron star

• Black hole

What remnant remains after a high-mass star explodes in a supernova?

• White dwarf

• Neutron star or black hole

• Nebula

• All of the above (depending on the star's initial mass)

What phenomenon can occur when two neutron stars collide?

• Supernova

• Gamma-ray burst

• Quasar formation

• Black hole birth

What type of star expands to become a Red Giant?

• Low-mass and medium-mass stars

• High-mass stars

• All stars

• None of the above

What is the fate of a Red Giant's outer shell after planetary nebula formation?

• It becomes a White Dwarf.

• It disperses into interstellar space.

What type of star undergoes a Helium flash?

• Low-mass and medium-mass stars

• High-mass stars

• All stars

• None of the above

What process powers the core of a White Dwarf?

• Nuclear fusion

• Electron degeneracy pressure

• Gravitational collapse

• Stellar wind

What type of supernovae are triggered by the collapse of a massive star's core?

• Core-collapse supernovae

• Type Ia supernovae

• Thermonuclear supernovae

• Hypernovae (although all can be involved)