Question 7
FThe Figure shows how the radius of a star of similar mass to the Sun changes during its life.
Figure
a.[3]
Give the name of the stage of the star in each region P, Q and R.
b.[1]
Use the Figure to estimate the time that the star spends in region P.
c.[2]
Explain why the radius of the star increases at the start of region Q.
d.[2]
Explain why the radius of the star decreases sharply at the start of region R.
7.3 Stars Questions
75 exam-style questions on Edexcel GCSE Physics 7.3 Stars, covering 7.3.1 Evolution of stars similar to the Sun, 7.3.2 Evolution of massive stars, and 7.3.3 Observing the Universe. Each one has a worked solution and a mark scheme showing where the marks go.