the measure of the average kinetic energy of the molecule of a substance
The more energy, the higher the temperature.
Temperature is measured with a thermometer.
Heat
transfer of thermal energy between substances of a different temperature
Temperature
the measure of the thermal energy in a substance.
Absolute zero
In theory, the temperature at which molecular motionstop (0Kelvin)
Temperature is a measure of the average kinetic energy of the molecules in a substance.
Increased temperature means an increase in the average kinetic energy of the molecules in the substance being measured, and most substances expand when heated.
The boiling point of water is 100 °C/212 °F and the freezing point of water is 0 °C/32 °F
As thermal energy is added to or taken away from a system, the temperature does not change. There is no change in temperature during a phase change as this energy is being used for forming or breaking molecules.
The transfer of thermal energy (heat transfer) occurs in 3 ways: by conduction, convention, and radiation
Conduction
the transfer of heat through a solid
e.g. touching a hot pan
Convection
the transfer of heat energy through a liquid or gas
e.g. warm air rises and cold air sinks
Radiation
the transfer of heat by electromagnetic waves through open space
e.g. heat from the sun, heat released from the filament of a light bulb
