Two identical metal storage cabinets are situated in an open yard on a bright, sunny day. One cabinet is painted white and the other is painted black. A shallow puddle of rainwater has formed on the flat roof of each cabinet.
State and explain how the temperature of the white cabinet's surface differs from the temperature of the black cabinet's surface.
The puddles of water are slowly drying. Describe how two different changes in the weather conditions could increase the rate at which the puddles dry.
Explain, in terms of water molecules, what happens as a puddle dries.
528 exam-style questions on CIE IGCSE Physics 2.2 Thermal properties and temperature, covering 2.2.1 Thermal expansion of solids, liquids and gases, 2.2.2a Internal energy and temperature, 2.2.2b Specific heat capacity, 2.2.3a Melting, boiling, condensation and solidification, 2.2.3b Evaporation, and 2.2.3c Cooling by evaporation. Each one has a worked solution and a mark scheme showing where the marks go.