P2 0.0 / 5 ? FunPhysicsFunNone Created by: sotes003.302Created on: 09-03-19 18:04 Test for Best conductor - Rods of equal length and different material / Wax or Vaseline with pin at one end / Heat Equally / First pin to fall = Best conductor 1 of 18 Thermal Conductivity - The measure at which a material conducts thermal energy 2 of 18 The Greater the Thermal Conductivity .... .... The more energy it transfers per second via conduction 3 of 18 Insulators have ... ... Low thermal conductivity 4 of 18 The thicker the insulator... ... The lower thermal energy that is transferred 5 of 18 The Higher the temperature of an object... ... the more infrared radiation it emits in a given time 6 of 18 Good absorber = Good emitter 7 of 18 Black Body - Absorbs all infrared radiation without reflecting any 8 of 18 An object with a constant temperature ... ... Emits radiation across a range of wavelengths 9 of 18 Rescue Teams use shiny Blankets because... ... They emit less radiation so the patient stays warm 10 of 18 Greenhouse gases ...Absorb longer wavelengths and emit them back towards earth to heat it up 11 of 18 Specific heat capacity is... the amount of energy required to raise the temperature of 1kg of a substance by 1°C 12 of 18 Energy Transferred = Mass * Specific heat capacity * Temp change 13 of 18 Loft Insulation - Reduces thermal energy transfer through the roof 14 of 18 Cavity wall insulation - Reduces rate of thermal energy transfer through walls 15 of 18 Aluminium behind radiators - To reflect all heat from the radiator back into the house 16 of 18 Double Glazed windows - Slow the rate of thermal conduction with vacuum in the middle 17 of 18 Thicker Bricks - Thicker bricks have lower thermal conductivity and allow less heat to be transfered 18 of 18
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