Life Cycle of Stars Quiz

What is the first stage in the life cycle of a star?

• White dwarf

• Red giant

• Stellar nebula

• Black hole

Which among the process powers a star during its main sequence phase?

• Nuclear fission

• Nuclear fusion

• Chemical reaction

• Gravitational contraction

What will happen to our Sun at the end of its life cycle?

• It will explode as a supernova and become a black hole

• It will collapse directly into a neutron star

• It will expand into a red giant and then become a white dwarf

• It will remain a main sequence star forever

Which factor primarily determines how a star will die?

• Its temperature

• It's color

• Its mass

• Its brightness

Which of the following is the final stage of a massive star if its core is between 1.4 and 3 solar masses after a supernova?

• White dwarf

• Neutron star

• Black hole

• Red giant

Which of the following elements is the heaviest that a star can fuse before collapsing?

• Iron

• Hydrogen

• Helium

• Dietrium

What is a neutron star mostly composed of?

• Electrons and protons

• Hydrogen and helium

• Iron and photons

• Densely packed neutrons

Which event marks the transition of a high-mass star into either a neutron star or a black hole?

• Red giant phase

• Supernova explosion

• White dwarf cooling

• Planetary nebula

What is the primary reason why white dwarfs shine even though they no longer undergo fusion?

• They absorb light from other stars.

• They reflect light from nearby planets.

• They still generate energy through nuclear reactions.

• They are glowing from leftover heat and slowly cooling.

Which type of star is most likely to end its life as a black hole?

• Red dwarf

• Medium-mass star like the Sun

• High-mass star (above 25 solar masses)

• White dwarf