Heat is transfer of energy between objects because of difference in temperature
Heat exits as energy in transit and is not actually contained in an object. The energy contained in the particles of an object is called Thermal energy
Methods of heat transfer
Conduction
Convection
Radiation
Conduction
Direct contact
Convection
Movement of fluids (liquids and gases)
Radiation
Electromagnetic waves, can occur in empty space
Heat is measured in calories
Thermal conductors are materials that allow the transfer of heat energy through them
Thermal insulators are materials that do not allow the transfer of heat easily
Thermal insulators
Wood
Plastic
Wool
Thermal insulators are used in housing construction to reduce heating and cooling costs
Thermal insulators are used on pot and pan handles to reduce heat flow to the user's hand
