Consequences of thermal energy transfer
2.3.4What the syllabus asks of you
- Explain everyday applications using ideas about conduction, convection and radiation, including: (a) heating objects such as kitchen pans (b) heating a room by convection (c) measuring temperature using an infrared thermometer (d) using thermal insulation to maintain the temperature of a liquid and to reduce thermal energy transfer in buildings
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Chapter 2: Consequences of thermal energy transfer
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2 questions
1Oct / Nov 2023 · Paper 12 · Q22Show mark scheme →
AEach thread is very thin.
BIt has a large surface area because it is made of many threads.
CIt has a low density because of the trapped air.
DIt traps air and prevents convection.
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2May / June 2023 · Paper 11 · Q18Show mark scheme →
Acavity wall insulation
Bdouble glazing
Cdraught proofing
Dloft insulation
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