Difference between revisions of "Heating"
(→About Heating) |
(→Key Stage 4) |
||
Line 17: | Line 17: | ||
===About Heating=== | ===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 [[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]]. | : 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]]. |
Revision as of 12:55, 2 February 2019
Key Stage 3
Meaning
Heating is a way of transferring energy from one Energy Store into another through Conduction, Convection or Thermal Radiation.
About Heating
- Heating happens when two objects of different temperature are in 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 transfers energy from the Thermal Energy Store of one object to the Thermal Energy Store of another object.
There are three ways that heating can occur:
- Thermal Conduction - Vibrating particles collide with other particles passing on their energy.
- Convection - Fluid at high temperature is less 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 Thermal Radiation. The higher the temperature the more Thermal Radiation they emit.
Key Stage 4
Meaning
Heating is a way of transferring energy from one Energy Store into another through Conduction, Convection or Thermal Radiation.
About Heating
- Heating happens when two objects of different temperature are in 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 transfers energy from the thermal energy store of one object to the thermal energy store or the internal energy store of another object.
- When heating increases the thermal energy store of an object the temperature will increase.
- When heating increases the internal energy of an object this may increase its temperature or it may cause it to change state, eg Melting or Boiling.
There are three ways that heating can occur:
- Thermal Conduction - Vibrating particles collide with other particles passing on their energy.
- Convection - Fluid at high temperature is less 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 Thermal Radiation. The higher the temperature the more Thermal Radiation they emit.