Difference between revisions of "Heating"
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===About Heating=== | ===About Heating=== | ||
− | : [[Heating]] happens when two [[object]]s of different [[temperature]] are in contact with one another. | + | : [[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]]. | : 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]] of one [[object]] to the [[Thermal Energy Store]] of another [[object]]. | : [[Heating]] [[Energy Transfer|transfers energy]] from the [[Thermal Energy Store]] of one [[object]] to the [[Thermal Energy Store]] of another [[object]]. |
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 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.