Name: 
 

Test Chapters 1, 2 & 3



True/False
Indicate whether the statement is true or false. (1-Point Each)
 

 1. 

A light-year is the distance light travels in one year.
 

 2. 

The totally eclipsed moon glows coppery red because sunlight reaches the moon's surface after passing through Earth's atmosphere.
 

 3. 

The sun is a star in the Milky Way Galaxy.
 

 4. 

A magnitude 3.2 star is brighter than a magnitude -1.2 star.
 

 5. 

The constellations were created by the Greeks.
 

 6. 

The Greek letter designation conveys information about a star's location and brightness.
 

 7. 

Spring tides are larger than Neap Tides due to the alighnment of the earth, sun and moon.
 

 8. 

If you were on the moon during a total lunar eclipse, the sun would be hidden behind Earth.
 

 9. 

A second magnitude star in Ursa Major is brighter than a fourth magnitude star in Orion.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question. (3-Points Each)
 

 10. 

Northern Hemisphere winters are colder than Northern Hemisphere summers because
a.
Earth is closer to the sun during the summer.
b.
the snow that falls in the northern latitudes cools Earth during the winter.
c.
the light from the sun shines more directly on the Northern Hemisphere during the summer.
d.
the period of sunlight is longer during the summer than during the winter.
e.
c and d
 

 11. 

If the nearest star is 4.2 light-years away, then
a.
the star is 4.2 million AU away.
b.
the light we see left the star 4.2 years ago.
c.
the star must have formed 4.2 billion years ago.
 

 12. 

Total lunar eclipses always occur at the time
a.
of full moon.
b.
of new moon.
c.
either solstice.
d.
either equinox.
e.
that the sun is directly overhead.
 

 13. 

Spring tides occur
a.
at new moon and first quarter moon.
b.
at new moon and full moon.
c.
at third quarter and full moons.
d.
at first quarter and third quarter moons.
e.
at noon and midnight.
 

 14. 

A totally eclipsed moon glows coppery red because
a.
the moon' surface is made of iron ore which is red in color.
b.
only red light is able to pass completely through Earth's atmosphere and reach the moon.
c.
The moon appears red during a total solar eclipse, not a total lunar eclipse.
d.
during a lunar eclipse the sun is cooler than normal and its light is more red.
e.
red light is cooler than blue light.
 

 15. 

Why do we measure some distances in astronomy in light-years and some in astronomical units?
a.
We never use astronomical units
b.
Convience of Units
c.
We use light years for near objects
d.
We use autronomical units for distant objects
 

 16. 

Why isn't the winter solstice the coldest day of the year?
a.
Thermal Lag
b.
December 22 is the coldest day of the year
c.
The sun is closest to the Earth
d.
The sun is furthest from the Earth
 

 17. 

Scientific notation is used in science because
a.
it makes conversions between units easy.
b.
all astronomical distances are expressed in metric units.
c.
it makes it easy to write big or small numbers.
 

 18. 

The synodic period of the moon
a.
is the period of time from when the moon rises until the moon rises again the next night.
b.
is the period of time for the moon to orbit Earth once with respect to the stars.
c.
is about 27.32 days long.
d.
is the period of time between successive eclipses at a given location on Earth.
e.
none of the above
 

 19. 

The point in Earth's orbit when Earth is farthest from the sun is known as
a.
aphelion.
b.
perihelion.
c.
precession.
d.
the winter solstice
e.
a and d
 

 20. 

The celestial equator is
a.
a line around the sky directly above Earth's equator.
b.
the dividing line between the north and south celestial hemispheres.
c.
the path that the sun appears to follow on the celestial sphere as Earth orbits the sun.
d.
a and b.
e.
a and c.
 

 21. 

The average distance from Earth to the sun is one
a.
Astronomical Unit
b.
Light Year
c.
Hour
d.
Thousand Miles
 

 22. 

The number 520,600,000,000 would be written in scientific notation as
a.
5.206 x 11^10
b.
52.06 x 10^10
c.
5.206 x 10^-11
d.
5.206 x 10^11
 

 23. 

The point in Earth's orbit when Earth is closest to the sun is known as
a.
aphelion.
b.
perihelion.
c.
precession.
d.
the winter solstice
e.
a and d
 

 24. 

Why there are two high tides and two low tides each day?
a.
Gravity from the sun and moon.
b.
Gravity and lack of gravity from the sun.
c.
Gravity and lack of gravity from the moon.
d.
Earth’s 23.5 degree tilt on it’s axis.
 

Short Answer
Provide a short answer for the following question. (5-Points or More Each)
 

 25. 

Show the equinox's and solstice's of the Earth/Sun system clearly showing the following information:
      a. The relative distances of the Earth and the Sun (winter vs summer).
      b. The name of each of the four positions and the date.
      (The same as I drew on the board.)

es025-1.jpg.
 

 26. 

Show the eight phases of the moon clearly showing the following information:
      a. The name of each of the phases. (1-8)
      b. What the moon looks like here on earth. (1-8)
      c. The location of the Earth, Moon and Sun, label the drawing. (9-11)
      (The same as I drew on the board.)

es026-1.jpg.
 



 
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