Zusammenfassung der Ressource
Heat
Transfer
- conduction
- Metals are good conductors of heat
- Non metals are bad conductors. Bad conductors are insulators.
- Electrons in metals can move around freely
- Causes charged ions.
- Thermal energy is conducted from hot end to cold end.
- convection
- Takes place in fluids
- Occurs when particles with lots of heat energy move and take place of particles with less heat energy.
- radiation
- works in a vacuum
- no particles required
- Shiny surfaces are bad emitters of radiation.
- Infrared radiation
- Dark surfaces absorb heat better than shiny surfaces.
- Dark, non shiny surfaces are good emitters and absorbers.
- THERMAL ENERGY