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IB Physics HL B 2 3 Albedo Questions

Practise IB Physics HL B.2.3 by analysing albedo, atmospheric scattering and snow–ice feedback in planetary climate models.

Syllabus
First assessment 2025
Course
Physics HL
Level
HL

Exam points

  • Construct a free-body diagram that isolates the chosen body and labels every external force with correct direction and point of action.
  • Use a complete free-body diagram to resolve forces and determine the resultant or equilibrium condition from mark-scheme evidence.

IB Physics HL B 2 3 Albedo Questions question 1

[Maximum number: 1]

A planet has an albedo of 0.30 . A simplified energy balance for the planet is shown.

Figure for Question IB Physics HL B 2 3 Albedo Questions question 1 — IB Physics HL

What is the intensity radiated by the surface of the planet?

A

70Wm−270 \mathrm{Wm}^{-2}

B

90Wm−290 \mathrm{Wm}^{-2}

C

100Wm−2100 \mathrm{Wm}^{-2}

D

130Wm−2130 \mathrm{Wm}^{-2}

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