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IB Physics SL E.5.4 Stellar mass and evolution Question Bank

Practise IB Physics SL/HL E.5.4 by applying stellar mass and evolution concepts to exam-style physics questions.

Syllabus
First assessment 2025
Course
Physics SL
Level
SL

Exam points

  • identify the relevant physical quantity, model or diagram
  • apply the correct equation and units to the evidence
  • justify the result using conservation laws, fields or energy relationships

E.5.4—Stellar mass and evolution question 1

[Maximum number: 3]

The graph shows an incomplete Hertzsprung-Russell (HR) diagram. The position of the Sun and three other stars, A, B and C , are shown.

Figure for Question E.5.4—Stellar mass and evolution question 1 — IB Physics SL

M⊙,R⊙M_{\odot}, R_{\odot} and L⊙L_{\odot} are the mass, radius and luminosity of the Sun.

Describe the main stages in the evolution of star A after leaving the main sequence.

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