Conduction of Heat (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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How does thermal conductivity affect energy transfer rate?
How does thermal conductivity affect energy transfer rate?
Higher thermal conductivity = higher rate of energy transfer
Thermal conductivity of cavity wall insulation
Thermal conductivity of cavity wall insulation
Very low
By how much can cavity insulation reduce wall thermal conductivity?
By how much can cavity insulation reduce wall thermal conductivity?
Up to ten times
Single glazed windows: thermal conductivity?
Single glazed windows: thermal conductivity?
High
Double glazed windows: thermal conductivity?
Double glazed windows: thermal conductivity?
Low
Loft insulation: thermal conductivity?
Loft insulation: thermal conductivity?
Low
Effect of loft insulation on roof energy transfer
Effect of loft insulation on roof energy transfer
Reduces thermal energy passing through roof
What material property reduces building heat loss?
What material property reduces building heat loss?
Low thermal conductivity
Effect of thick walls on thermal energy transfer
Effect of thick walls on thermal energy transfer
Reduces rate of thermal energy transfer
Compare single vs double glazed thermal conductivity
Compare single vs double glazed thermal conductivity
Single: high, Double: low