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Physics - Heat - Coggle Diagram

- - - - Higher heating costs
  - - - Walls
        
        Cavity wall insulation
    - - Roof / attic
        
        Loft insulation
    - - Windows / Doors
        
        Double glazing
        
        Closing curtains
        
        Draught exluder
    - - Floor
        
        Improving insulation
  - - - Hot
        
        reflect infrared radiation back into the liquid
      - Cold
        
        reflect infrared radiation away from the liquid
    - - does not allow for conduction or convection - no particles
    - - insulator, limiting conduction
      - prevents evaporation of liquid
- - - - occurs primarily in solids
      - As particles in a solid are heated, they vibrate more
      - these vibrations lead to collisions between particles
      - vibrations are transferred onwards
      - Conductor
        
        material that is able to conduct heat well
        
        Metal
      - Insulator
        
        material is not able to conduct heat well
        
        Plastic
        
        Gases (like air) are very good insulators
        
        particles very far apart
      - No particles in a vacuum
        
        no conduction is possible
    - - happens in both liquids and gases
      - As a liquid or gas is heated, the particles move faster and become more spread out
      - become less dense and therefore rise
      - Colder liquids or gases are more dense and sink
    - - All objects emit radiation in the form of infrared waves
        
        Thermal radiation
        
        infrared radiation
        
        electromagnetic wave
        
        travel through a vacuum
        
        how thermal radiation reaches Earth from the Sun
        
        Matt black objects absorb the most infrared radiation
        
        Shiny silver surfaces reflect infrared radiation