How does thermal radiation transfer energy?
By electromagnetic waves, including infrared radiation.
Cambridge IGCSE (9–1) Physics 0972 (Extended) (2026–2028) · 2.3.4
Revise Cambridge IGCSE (9–1) Physics 0972 (Extended) (2026–2028) specification point 2.3.4, Consequences of thermal energy transfer, with free active-recall flashcards. Flip through the set or review every question and answer below.
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How does thermal radiation transfer energy?
By electromagnetic waves, including infrared radiation.
Which objects emit thermal radiation?
All objects emit thermal radiation.
How does an object's temperature affect the energy it emits by radiation?
Hotter objects emit more energy by radiation.
What happens when an object absorbs thermal radiation?
Its thermal energy increases, and it may warm up.
Does thermal radiation require contact or a material medium to transfer energy?
No. It can transfer energy without either, allowing a hot source to warm its surroundings directly.