Combined ScienceCode 5129
Transfer of thermal energy
What this topic asks you to be able to do
- Outline and carry out practical work that separates good thermal conductors from poor ones
- Account for convection in liquids and gases using changes in density, and outline experiments that show convection taking place
- Outline and carry out practical tests that tell apart good emitters of infrared radiation and poor ones
- Outline and carry out practical tests that tell apart good absorbers of infrared radiation and poor ones
- Account for everyday uses of conduction, convection and radiation, including: (a) heating objects such as kitchen pans (b) warming a room through convection (c) measuring temperature with an infrared thermometer (d) employing thermal insulation to keep a liquid at a steady temperature and to cut down on thermal energy transfer within buildings