IB Physics SL B 1 13 Convection Questions

Practise IB Physics SL B.1.13 by explaining how heating changes plasma density and drives convection in a star.

Syllabus
First assessment 2025
Course
Physics SL
Level
SL

Exam points

  • Explain convection as thermal-energy transfer caused by fluid density differences and bulk-fluid circulation.
  • Relate heating, expansion, buoyancy and rising or sinking fluid regions to the convection pattern using complete evidence.

IB Physics SL B 1 13 Convection 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 B 1 13 Convection Questions question 1 — IB Physics SL

Outline why regions of convection form in Star A.

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