IB Physics SL B.1.13 Convection
Practise explaining convection with density changes in fluids or plasmas, and linking unusual water density behaviour to circulation and survival under ice.
- Syllabus
- First assessment 2025
- Objective
- —
- Level
- SL
Exam points
- outline a convection cycle by linking heating to lower density and rising fluid, with cooler denser fluid sinking
- explain why ice floating insulates water below, using water's density anomaly and the sinking of 4 degrees C water
B.1.13—Convection question 1
Star A is a main sequence star.
The data for Star A and the Sun are given in a table.
Outline why regions of convection form in Star A.
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