- Created by: Georgie_Bradbury
- Created on: 14-05-16 12:09
Energy transfer by heating
- Infrared radiation is energy transfer by electromagnetic waves, and all object emit it. The hotter
- Created by: Georgie_Bradbury
- Created on: 14-05-16 12:09
Energy transfer by heating
- Infrared radiation is energy transfer by electromagnetic waves, and all object emit it. The hotter the object, the more infrared given off.
- Dark, matt surfaces emit and absorb infrared quicker than light, shiny surfaces. Light, shiny surfaces reflect more infrared than dark, matt surfaces.
- In a solid, particles are held next to one another and vibrate. In a liquid, the move about and in contact with each other. In a gas, they move apart randomly and are much futher apart than particles in a liquid or gas.
- Metals are good conductors, and materials like wool and fibre glass are good insulators. Conduction in metals is good because it has free electrons transfering energy inside the 