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===About Heating===
: [[Heating]] happens when two [[object]]s of different [[temperature]] are in [[Thermal Contact|contact]] with one another.: Energy is transferred from the hotter to the cooler object until they reach '[[Thermal Equilibrium]]''which means they are both at the same [[temperature]].: [[Heating''' ]] [[Energy Transfer|transfers]] [[energy]] from the [[Thermal Energy Store|thermal energy store]] of one [[object]] to the [[Thermal Energy Store|thermal energy store]] or the [[Internal Energy|internal energy store]] of another [[object]].
: When [[heating]] increases the [[Thermal Energy Store|thermal energy store]] of an [[object]] the [[temperature]] will increase.
: When [[heating]] increases the [[Internal Energy|internal energy]] of an [[object]] this may increase its [[temperature]] or it may cause it to [[State Change|change state]], eg [[Melting]] or [[Boiling]].
There are three ways that [[heating]] can occur:
*[[Thermal Conduction]] - [[Vibration|Vibrating]] [[particle]]s [[collide]] with other [[particle]]s passing on their [[energy]].
*[[Convection]] - [[Fluid]] at high [[temperature]] is less [[Density|dense]] than [[fluid]] at low [[temperature]] so the high [[temperature]] [[fluid]] rises and the low [[temperature]] [[fluid]] sinks.
*[[Thermal Radiation]] - Objects can [[emit]] and [[Absorb (Physics)|absorb]] [[Thermal Radiation]]. The higher the [[temperature]] the more [[Thermal Radiation]] they [[emit]].