CAPE Physics Unit 1 · 2005 · Paper 2 · Question 8(b)(i)

A home-made cooler is constructed from plywood and foam plastic. The walls consist of two pieces of plywood 1.0 cm thick with a 1 cm layer of foam plastic in between. When in use the temperature inside the box is 2 °C while the outside temperature is 30 °C. Figure VII shows a cross-section of the wall.

Sketch a graph to show how the temperature varies across the wall of the box.

This question uses a figure or table from the paper — you'll see it when you practise.