PhysicsCode 5054

The Sun as a star

What this topic asks you to be able to do

  • Know that the Sun is a medium-sized star composed largely of hydrogen and helium, giving off the greater part of its energy as radiation in the ultraviolet, visible and infrared parts of the electromagnetic spectrum
  • Understand that nuclear reactions supply stars with their power, releasing energy, and that in stars which are stable the reactions join hydrogen nuclei together to form helium