Thermal Engergy

Noah Swanson
Mind Map by , created over 5 years ago

Thermal Energy Topic Edexcel Physics IGCSE

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Noah Swanson
Created by Noah Swanson over 5 years ago
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Thermal Engergy
1 Thermal Energy Transfer
1.1 Conduction
1.1.1 Through Substanses
1.1.1.1 No Movement
1.1.2 Metals Are Good Conductors
1.1.3 Wood Is A Good Insulator
1.2 Convection
1.2.1 Through Fluids

Annotations:

  • Fluids = Liquids And Gases
1.2.2 Upward Movement Of Warmer Fluids

Annotations:

  • Warmer Fluids Are Less Dense
1.3 Radiation
1.3.1 Thermal Radiation
1.3.1.1 Through IR Waves

Annotations:

  • IR Waves = Infa Red Waves 
1.3.2 Travels In Straight Lines
1.3.3 Shiney Surfaces Reflect It
1.3.3.1 Emmit Less Heat Through Thermal Radiation
1.3.4 Matt Black And Darker Surfaces Are Good Absorbers
2 Energy Efficient Homes
2.1 Where Heat Is Lost
2.1.1 The Walls
2.1.1.1 35%
2.1.2 The Windows
2.1.2.1 10%
2.1.3 The Doors
2.1.3.1 15%
2.1.4 The Roof
2.1.4.1 25%
2.1.5 The WIndows
2.1.5.1 15%
2.2 Reduction Of Heat Loss
2.2.1 The Walls
2.2.1.1 Good Insulation Building Materials. Must Be:
2.2.1.1.1 Strong
2.2.1.1.2 Durable
2.2.1.1.3 Easily Available
2.2.1.2 Cavity Gap
2.2.1.2.1 To Stop Convection
2.2.1.2.2 Can Be Filled With Fiber Glass
2.2.1.2.3 Outer Wall Of Brick, Inner Wall Of Thermal Bricks
2.2.2 The Windows
2.2.2.1 Glass
2.2.2.1.1 Poor Conductor Of Heat
2.2.2.1.2 Double Glazing
2.2.2.1.2.1 2 Thin Layers Of Glass To Improve Insulation
2.2.2.1.2.2 Triple Glazing In Very Cold Countries
2.2.3 The Roof
2.2.3.1 Similar To Insulation Of Walls
2.2.3.1.1 Cavity Gap
2.2.3.2 Loft Insulation

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