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IB Physics SL E 5 3 Fusion Conditions Questions

Explain SL fusion conditions, including the temperature, energy and confinement needed to overcome Coulomb repulsion and sustain plasma fusion.

Syllabus
First assessment 2025
Course
Physics SL
Level
SL

Exam points

  • Fusion in stars requires high density and temperature.

IB Physics SL E 5 3 Fusion Conditions Questions question 1

[Maximum number: 2]

Star A is a main sequence star.

The data for Star A and the Sun are given in a table.

Table for Question IB Physics SL E 5 3 Fusion Conditions Questions question 1 — IB Physics SL

Explain why nuclear fusion in the core of the star occurs when the temperature and density exceed threshold values.

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