ASTRO 101 Exam Questions with Correct Answers

ASTRO 101 Exam Questions with Correct Answers


Question 1:
How long does it take the Earth to orbit the Sun?
Answer:
a) one sidereal day one month



Question 2:
one year * one hour What is the name given to the path of the Sun as seen from Earth?
Answer:
a.) Equinox Celestial equator Solstice
Ecliptic *



Question 3:
The ecliptic is best described as a(n):
Answer:
a) hollow sphere solid sphere plane *
square



Question 4:
How many months apart are Winter Solstice and the Vernal Equinox?
Answer:
a) 1 month



Question 5:
3 months * 4 months 6 months Over what place on Earth is the Sun on the Autumnal equinox?
Answer:
a) the North Pole London



Question 6:
Over what place on Earth is the Sun on the Autumnal equinox?
Answer:

,a) the North Pole London



Question 7:
the South Pole the equator *the South Pole the equator * the South Pole the equator * the
South Pole the equator * True or False: Constellations look the same from everywhere in the
galaxy.
Answer:
True
False *



Question 8:
When you are facing Polaris you are...
Answer:
a.) ...looking at the brightest star in the sky.



Question 9:
...facing directly north. * ...looking at the "Big Dipper". ...facing directly south. Astronomers use
the word constellation to describe...
Answer:
a.) ...only the pattern of stars that we see on the sky.
...an entire region of the sky and all objects in that region. *
...a clustering of stars, meaning that all stars that belong to the constellation are physically close
to each other in space.
...collectively, all of the bright stars on the sky.



Question 10:
What type of motion leads to the Sun rising and setting?
Answer:
a.) Earth's rotation * Earth's revolution The Sun's revolution The Sun's rotation



Question 11:
What type of motion leads to stars rising approximately 4 minutes earlier each day than it did
the day before?
Answer:

, a.) Earth's rotation



Question 12:
Earth's revolution * The Sun's revolution The Sun's rotationEarth's revolution * The Sun's
revolution The Sun's rotation Earth's revolution * The Sun's revolution The Sun's rotation
Earth's revolution * The Sun's revolution The Sun's rotation True or False: Every star in the night
sky, regardless of your location, will rise and set.
Answer:
True
False *



Question 13:
How long is an average solar day?
Answer:
a.) 24 hours *



Question 14:
23 hours, 56 minutes 12 hours 24 hours, 4 minutes How long is a sidereal day?
Answer:
a.) 24 hours



Question 15:
23 hours, 56 minutes * 12 hours 24 hours, 4 minutes What is the term that describes the
changes in the direction in which the Earth's axis of rotation points?
Answer:
a.) Precession * Perpendicular Equatorial bulge Gravitation



Question 16:
True or False: Polaris will not always be the pole star.
Answer:
a) True *