Difference between revisions of "Heating"
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*[[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. | *[[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]]. | *[[Thermal Radiation]] - Objects can [[emit]] and [[Absorb (Physics)|absorb]] [[Thermal Radiation]]. The higher the [[temperature]] the more [[Thermal Radiation]] they [[emit]]. | ||
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| + | ==Key Stage 4== | ||
| + | ===Meaning=== | ||
| + | '''Heating''' is a way of [[Energy Transfer|transferring energy]] from one [[Energy Store]] into another through [[Thermal Conduction|Conduction]], [[Convection]] or [[Thermal Radiation]]. | ||
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| + | ===About Heating=== | ||
| + | : '''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 cause it to [[State Change|change state]], eg [[Solid]] to [[Liquid]]. | ||
Revision as of 12:52, 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 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 cause it to change state, eg Solid to Liquid.