Practice Problems on

1
Practice Problems on Motion available on D2L
2
If you could see stars during the day, the
drawing below shows what the sky would look like
at noon on a given day. The Sun is near the stars
of the constellation Gemini. Near which
constellation would you have expect the Sun to be
located at sunrise on this day?

1. Leo
2. Cancer
3. Gemini
4. Taurus
5. Aries

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3
At what time will Star B be located high in the
Northwestern sky?

1. 400 am
2. 1000 am
3. 200 pm
4. 700 pm
5. 100 am

4
If you were able to see the motion of star B be
at Noon, over a period of 15 minutes what
direction would it appear to move?

1. west (to the left)
2. east (to the right)
3. South (out of the page)
4. away from the horizon (up)
5. toward the horizon (down)

5
The changing position of the Sun during the year!
6
How can we describe the motion of the sun in the
sky?
7
How can we describe the motion of the sun in the
sky?
meridian
zenith
LUNCH!!
PM or post meridian
AM or ante meridian
east
west
south
8
Where is the Sun at noon today?
zenith
east
west
south
9
Where is the Sun at noon today?
zenith
What about tomorrow at noon?
there
east
west
south
10
What about the path of the Sun?
zenith
What about tomorrow at noon? JUST A LITTLE LOWER
!!
there
east
west
south
11
Where is the Sun throughout the year?
zenith
east
west
south
12
ONE YEAR
zenith
east
west
south
13
Where would the Sun be on your birthday?
14
Position of the Sun when photographed during the
day of the winter and summer solstice
15
Altitude of the Sun Animation

• Note where the sun rises and sets
• Note how the altitude of the sun changes during a
  day and over the course of the year.
• Note how the shadow changes during a day and over
  the course of the year.

16
Tutorial Path of the Sun p.17

• Work with a partner!
• Read the instructions and questions carefully.
• Discuss the concepts and your answers with one
  another.
• Come to a consensus answer you both agree on.
• If you get stuck or are not sure of your answer,
  ask another group.
• If you get really stuck or dont understand what
  the Lecture Tutorial is asking, ask one of us for
  help.

17
Under which of the following circumstances will a
vertical flagpole not cast a shadow as seen from
the continental United States?

1. every day at noon
2. every day at the time when the sun is highest in
   the sky
3. when the sun is highest in the sky on the summer
   solstice
4. when the sun is highest in the sky on the winter
   solstice
5. none of the above

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18
If you are located in the continental U.S. on the
first day of October, how will the position of
the Sun at noon be different two weeks later?

1. It will have moved toward the north.
2. It will have moved to a position higher in the
   sky.
3. It will stay in the same position.
4. It will have moved to a position closer to the
   horizon.
5. It will have moved toward the west.

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19
For an observer in the continental U.S., which of
the three shadow plots, shown at right, correctly
depicts the Suns motion for one day?

1. Shadow plot A
2. Shadow plot B
3. Shadow plot C
4. More than one of the plots are possible, on
   different days of the year.
5. None of the plots are possible.

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