What apparatus would you use to investigate the effectiveness of different materials as thermal insulators?

To investigate the effectiveness of different materials as thermal insulators, you would typically use a calorimeter, a heat source, and various insulating materials. The calorimeter allows you to measure temperature changes, while the heat source provides a consistent temperature to test the insulation properties.

This question tests the student's understanding of practical work related to thermal insulation. It requires recall of specific apparatus used in experiments, which is fundamental for conducting scientific investigations.