Stellar Evolution Quiz

What initiates the collapse of a nebula to form a protostar?

• Magnetic fields

• Gravity

• Solar winds

• Cosmic rays

What is the primary element involved in the initial fusion process in stars?

• Helium

• Oxygen

• Hydrogen

• Carbon

At what temperature does the core of a star reach during the hydrogen fusion process?

• 5 million Kelvin

• 50 million Kelvin

• 100 million Kelvin

• 15 million Kelvin

What happens to a star when it can no longer generate energy to counteract gravity?

• It becomes a red giant

• It forms a new nebula

• It collapses on itself

• It splits into two stars

What is the eventual fate of a massive star after a supernova?

• It becomes a white dwarf

• It turns into a black hole or neutron star

• It forms a new solar system

• It becomes a red giant again