The Life Cycle Of A Star (physics Only) (GCSE Physics)

Which property of a star most strongly determines its evolutionary path and final fate?

Which remnant is expected from the core collapse of a very massive star (above ~20–25 solar masses) after a supernova?

What is produced in large amounts during a core-collapse supernova that is dispersed into the interstellar medium and contributes to later star and planet formation?

Which nuclear process mainly provides energy in a typical main-sequence star like the Sun?

What determines whether a stellar core becomes a neutron star rather than a black hole after a supernova?

Which end state is most likely for a star with an initial mass similar to the Sun?

How does a star’s luminosity change as it evolves off the main sequence into a red giant?

The Hertzsprung–Russell (H–R) diagram plots stars by luminosity versus surface temperature (or spectral type). Where are main-sequence stars located on this diagram?

Which statement about white dwarfs is correct?

During the red giant phase a star’s outer layers expand and the surface temperature drops. What effect does this have on the star’s observed colour?

Why do more massive main-sequence stars have much shorter lifetimes than less massive ones?