IB Physics HL E.5.3 Fusion conditions Question Bank
Practise IB Physics SL/HL E.5.3 by applying fusion conditions concepts to exam-style physics questions.
- Syllabus
- First assessment 2025
- Course
- Physics HL
- Level
- HL
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.5.3—Fusion conditions question 1
Star A is a main sequence star.
The data for Star A and the Sun are given in a table.
Explain why nuclear fusion in the core of the star occurs when the temperature and density exceed threshold values.
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