IB Physics SL B.5.2 Electrical Energy Sources

Practise distinguishing chemical cells and photovoltaic cells as electrical sources and comparing their energy conversions, output type, renewability and practical limitations.

Syllabus
First assessment 2025
Objective
—
Level
SL

Exam points

  • identify chemical-to-electrical conversion in cells and light-to-electrical conversion in photovoltaic cells
  • distinguish photovoltaic electrical output from the thermal output of a solar-heating panel
  • evaluate solar-cell use through efficiency, area, intermittency, pollution and fossil-fuel displacement

B.5.2—Electrical energy sources question 1

[Maximum number: 1]

Outline why research into solar cell technology is important to society.

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