GCSE Physics - Reducing Unwanted Energy Transfers - Thermal Insulation | Lubrication (2026/27 exams)

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** WHAT'S COVERED **
1. Methods for reducing unwanted heat transfers in buildings.
Reducing heat transfer by conduction using materials with low thermal conductivity.
How cavity walls and double glazing work to reduce heat loss by conduction and convection.
Preventing convection by sealing gaps and using features like curtains.
2. Techniques for reducing energy loss from friction.
Using lubrication to minimise friction between moving surfaces.
The principle of streamlining to reduce air resistance and improve efficiency.

** EXAM BOARD SPECIFIC INFO **
AQA - Everything is relevant to your course!
IGCSE Edexcel - You also need to know about Sankey diagrams
Edexcel - You also need to know about Sankey diagrams
OCR 21st Century - You also need to know about Sankey diagrams
OCR Gateway - Everything is relevant to your course

** CHAPTERS **
0:00 Introduction
0:31 Reducing Heat Loss in a House
0:54 Preventing Convection
1:18 Preventing Conduction
1:38 Cavity Wall Insulation
2:14 Double Glazing
2:52 Reducing Friction
3:17 Lubrication and Streamlining

** PLAYLISTS **
   • KS3 Biology  
   • KS3 Chemistry  
   • GCSE Maths (9-1)  
   • GCSE Biology (9-1)  
   • GCSE Chemistry (9-1)  
   • GCSE Physics (9-1)  
   • A-Level Biology  


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