CAIE IGCSE Physics Radiation Without a Medium
Practise selecting radiation when thermal energy crosses empty space and explain why conduction and convection cannot carry energy through a vacuum.
- Syllabus
- 2026–2028
- Course
- Physics 0625
Exam points
- identify radiation as the transfer method from the Sun or a star through empty space
- state that a vacuum prevents conduction and convection because no particles are present
- trace energy through a container by conduction to its surface and radiation into space
2.3.3.2—Thermal energy transfer by thermal question 1
[Maximum number: 1]
State the method of thermal energy transfer from a star through the vacuum of space.
radiation
B1
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