Course home

2.3 Transfer of thermal energy

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

Question 29

Four identical metal containers, $P$ , $Q$ , $R$ , and $S$ , are filled with hot water at $90∘C90^\circ \text{C}$ .

The table below describes the outer surface and the top cover of each container:

Container	Outer surface	Top of the container
$P$	dull black	no lid
$Q$	dull black	fitted with a lid
$R$	shiny silver	no lid
$S$	shiny silver	fitted with a lid

Which container will cool down the fastest?

[3]

Markscheme

2.3 Transfer of thermal energy Questions

IGCSE
Physics
2.3 Transfer of thermal energy

301 exam-style questions on CIE IGCSE Physics 2.3 Transfer of thermal energy, covering 2.3.1a Thermal conductors and thermal insulators, 2.3.1b Explaining thermal conduction, 2.3.2 Convection, 2.3.3a Thermal radiation, 2.3.3b Surface colour and texture, 2.3.3c Rate of emission and absorption of radiation, and 2.3.4 Consequences of thermal energy transfer. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank