Tasa Graphic Arts, Inc.

Tasa Graphic Arts, Inc.

1210B Salazar Road  -  Taos, NM USA 87571
Phone: (800) 293-2725 or (575) 758-5535  -  Fax: (575) 758-5536
E-mail:  info@tasagraphicarts.com

Earth's Atmosphere and Its Seasons
In the Lab: Sun Angle and the Seasons Worksheet

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Name:

_____________________________________________________



1)

An important factor influencing the amount of solar energy received at a particular place and time is

_________________________________________________________________________.

2)

On frame 199, measure the widths of sunbeams A and B. Are they the same?    _________

3)

On frame 201, what is the angle between the surface and the beam of light

shining on area D?    ________________________________________

4)

On frames 202 and 203, what are the measurements of the length of line in Area C  _________

and Area D  _________  ?

5)

On frame 206, what fraction of incoming solar radiation is concentrated between 30 and

60 degrees N latitude?    _____________________________________________

6) What is the angle between the surface and the Sun's rays for angle B on frame 209?

___________________________________________________________________________________
7) The lower the Sun angle, the more concentrated the Sun's rays.    True    or    False    (circle one)?

___________________________________________________________________________________
8) Why do the Sun's vertical rays shift between hemispheres?

___________________________________________________________________________________

___________________________________________________________________________________
9) What latitude is receiving the vertical or overhead noon Sun on December 21 or 22?

___________________________________________________________________________________
10) How do you calculate noon Sun angle?

Step 1:    ___________________________________________________________________________

___________________________________________________________________________________

Step 2:    ___________________________________________________________________________
11) Calculate the noon Sun angle for 24° S latitude on June 21 or 22 (see frame 219).

___________________________________________________________________________________
12) What is the noon Sun angle for 62° N latitude during an equinox (see frame 220)?

___________________________________________________________________________________
13) What is the main use of an analemma?

___________________________________________________________________________________

___________________________________________________________________________________
14) What are the three steps in calculating the noon Sun for a particular place and date?

1. _________________________________________________________________________________

___________________________________________________________________________________

2. _________________________________________________________________________________

___________________________________________________________________________________

3. _________________________________________________________________________________

___________________________________________________________________________________

15) Calculate the noon Sun angle at 36° N latitude on January 25. _________________________________

16) What is the noon Sun angle at 48° S latitude on September 10? ________________________________
 

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