Which surfaces are the best emitters of heat?
1. shiny and Light
2. color and smoothness
What surfaces are the best absorbers of radiation?
3. Warm because the radiation from a lamp dries the ink on the paper.
4. Dark surface
Conduction
5. Solids and Substances
6.metal rod heated, free elctrons at the hot end gain energy and move faster bounce off one another. Transfer energy with other ions and elctrons.
7. Becasue they have no free electrons.
Convection
8.Liquids and Gasses
9. Heating up, rises, gets more dense, cools, falls as water (rain)
10.roof, windows, door gaps, walls & floor. Double Glazing, Cavity wall insulation, Loft insulation
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