Thermal Properties

Question 1

meaning of thermal properties

Answer 1

the way in which a material reacts to heat

Question 2

thermal conductivity

Answer 2

relates to how heat travels through the material, measured in watts per metre per degree Celsius, copper + aluminium have high thermal conductivity

Question 3

thermal insulators

Answer 3

relates to materials with low value thermal conductivity, generally non-metals — used to prevent heat gains and losses e.g pan handles, loft insulation

Question 4

thermal expansion

Answer 4

materials generally expand when they get hot and shrink upon cooling, control mechanisms also used this effect e.g car thermostats, automatic kettles