Revise GCSE Physics


Question:How are everyday items designed to make use of conduction, convection and radiation?

Handles for pots are made of insulating materials so that we are not burned when picking up a pot from a hot cooker; but the body of the pot is made from a conducting material like metal, so that heat will flow through to cook the food easily.

Kettles have their heaters at the bottom to take advantage of convection.

Air conditioners are placed high in a room to take advantage of convection because cold air sinks.

Radiators use convection to warm rooms.