O-LevelPhysicsThermal Physics5054/11 · Oct/Nov 2025 · Q171 Mark
Four metal cans are identical except for the colour and the texture of their outer surfaces. 100 cm³ of water at 70 °C is poured into each can. Which can cools the most rapidly?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Adescription of outer surface:
black,
rough
Bdescription of outer surface:
black,
shiny
Cdescription of outer surface:
white,
rough
Ddescription of outer surface:
white,
shiny
✓ Correct answer
A: description of outer surface: black, rough
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