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p.461 question 20 edited a) The albedo of a city would be much higher than a forest because the buildings and the roads hea…

a) The albedo of a city would be much higher than a forest because the buildings and the roads heat up really fast, while vegetation and forest soil absorb the solar radiation.
b) + c) The best choice would be white rock because the colour reflects more solar radiation than the dark ashfalt.
d) I think it would be "tar" because pale coloured shingles heat up and cool down much faster than "tar"
f) + g) The role of "conduction" is that heat transfers from a surface to another by direct contact.

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lab HW edited Details last edit 33 minutes ago by {http://c1.wikicdn.com/i/user_none_sm.jpg} Savannah_Ander…

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last edit 33 minutes ago by {http://c1.wikicdn.com/i/user_none_sm.jpg} Savannah_Anderson Savannah_Anderson - [[page/history/Lab and HW|3 revisions]]
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{http://c1.wikicdn.com/i/edit_nopermission.png} Protected=10-1B Conduction in Action Purpose : To test the ability of different types of metal to conduct heat.=
Materials :
four 8 cm conduction bars (steel, brass, copper, aluminum)
felt pen
ruler
wax strips or candles
matches
hot plate
brick of block of wood
stopwatch
graph paper
coloured pens or pencils crayons
Procedures : see page 432
Chart:
Distance (cm)
Time (seconds)
Aluminum
Tin
Copper
Lead
Zinc
Carbon
0cm
0s
0s
0s
0s
0s
0s
2cm
12s
4s
18s
9s
15s
25s
4cm
19s
14s
20s
16s
18s
30s
6cm
29s
44s
25s
28s
28s
40s
8cm
8s
52s
45s
44s
37s
64s
Graph:

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