The objective of this lab is to learn how to gather data to make a solar trajectory determination. This lab also involves the idea of seasonality. For this lab, I went to study the 20ft pole in front of the Medical School building to see how long the sun cast the shadow on it during different times of the day. I recorded the physical direction of the shadow and also used the compass on my phone to figure out the exact degree of the direction. The materials we used for this lab were a ruler, a flagpole, compass, our lab notebook, SunCalc.net and a calculator.
|
|
Height
of Pole
|
Time
of Day
|
Length
of shadow
|
Direction
of shadow
|
Tangent in decimal
|
Degree
of shadow
|
|
Data
point 1
|
20
|
9:00
AM
|
23
ft.
|
E
|
20/23=.86956
|
41
|
|
Data
Point 2
|
20
|
11:15
AM
|
18
ft.
|
N-NE
|
20/18=1.11
|
48
|
|
Data
point 3
|
20
|
12:00
PM
|
20
ft.
|
N
|
20/20=1
|
45
|
|
Data
point 4
|
20
|
1:00
PM
|
23
ft.
|
N-NW
|
20/23=.86956
|
41
|
|
Data
point 5
|
20
|
5:00PM
|
27
ft.
|
W
|
20/27=.7407
|
37
|
 |
| SunCalc.Net of Medical School Building- 20ft pole location |
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