Thermal Insulation Flashcards

All 4 cards in this deck

Give two ways of reducing unwanted energy transfer from a beaker of hot water in an experiment.

Add a lid or cover, and add lagging/insulation around the beaker.

What effect does using thicker insulation have on unwanted energy transfer?

It reduces the rate of energy transfer, so the contents cool down more slowly.

What property makes a material a good thermal insulator?

It is a poor conductor of energy, often because it traps air (e.g. foam, wool).

True or false? Insulating a container stops energy transfer from it completely.

False. Insulation only reduces the rate of unwanted energy transfer.