Physics 0625 · IGCSE · Stars and the Universe

Stars and the Universe — practice question

What does the term light-year mean?

  • Athe time for light to travel 1 km in space
  • Bthe time for light to travel from the Sun to the Earth
  • Cthe distance travelled in space by light in one year
  • Dthe distance travelled by light from the Sun to the Earth

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI