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IB Physics SL B.2.4 Earth’s albedo variation Question Bank

Practise IB Physics SL B.2.4 by explaining why Earth’s albedo varies with location, season, clouds and surface conditions.

Syllabus
First assessment 2025
Course
Physics SL
Level
SL

Exam points

  • Explain how latitude, season, cloud cover and surface type change Earth's measured albedo.
  • Use local solar-power evidence to distinguish reflected, absorbed and atmospheric-scattered radiation.

B.2.4—Earth’s albedo variation question 1

[Maximum number: 2]

This question is in two parts. Part 1 is about solar radiation and the greenhouse effect. Part 2 is about a mass on a spring.

Part 1 Solar radiation and the greenhouse effect
The following data are available.

Table for Question B.2.4—Earth’s albedo variation question 1 — IB Physics SL

State two reasons why the solar power incident per unit area at a point on the surface of the Earth is likely to be different from your answer in (c).

1 :
2:

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