Site MapHelpFeedbackOnline Quiz
Online Quiz
(See related pages)

1
What is the celestial sphere?
A)An observatory dome.
B)The Sun.
C)The Earth.
D)The imaginary sphere of the sky, on which stars lie.
2
What do we call a specific pattern of stars in the sky, often named for an animal?
A)A cluster.
B)A star animal.
C)A constellation.
D)The ecliptic.
3
What is the celestial equator?
A)A band of constellations through which the planets and Sun appear to move.
B)The line that the sun traces across the celestial sphere.
C)An imaginary line in the sky, directly above the Earth’s equator.
D)The cycle of lunar phases.
4
What do we call the line that the Sun traces across the celestial sphere?
A)The celestial equator.
B)The Mason-Dixon Line.
C)The extension of the Earth's equator on the celestial sphere.
D)The ecliptic.
5
What causes the change of the constellations with the seasons?
A)It is caused by the Earth’s motion around the Sun.
B)It is caused as the constellations move amongst themselves.
C)This is merely an illusion caused as the length of the day changes.
D)The cycle of lunar phases.
6
Where on the celestial sphere would you look for the planets?
A)On the celestial equator.
B)On the Galactic equator.
C)In the zodiac (near the ecliptic).
D)At the north celestial pole.
7
The Moon takes approximately ____ to go through a cycle of phases.
A)1 day
B)7 days
C)30 days
D)90 days
8
What do we call it when a planet moves backward (east to west) through the stars?
A)retrograde motion.
B)the Zodiac.
C)regression.
D)prograde motion.
9
Where will a planet in retrograde motion rise?
A)In the north.
B)In the south
C)In the east (just like everything else in the sky).
D)In the west (the opposite of everything else in the sky).
10
If you see a bright "star" in the sky, how could you tell whether it is a star or a planet?
A)Planets are too dim to be seen without a telescope.
B)Planets are round, stars have five points.
C)Planets always appear right next to the Moon.
D)Look at it several days later--if it's a planet, it will move across the background stars.
11
What is meant by the phrase "angular size"?
A)An object's diameter.
B)How big an object looks, expressed as an angle.
C)The distance around an object.
D)The angle between two circular objects.
12
If you triple your distance from an object, what happens to its angular size?
A)It decreases by one half.
B)It says the same.
C)It reduces to one third what it was.
D)It increases by a factor of nine.
13
Which of the following is a contribution that Eratosthenes made to astronomy?
A)He determined the circumference of the Earth.
B)He discovered epicycles.
C)He discovered his Three Laws (of Planetary Motion).
D)He was the first person known to have pointed a telescope at the sky.
14
Which of the following is a contribution that Kepler made to astronomy?
A)He determined the size of the Earth.
B)He discovered epicycles.
C)He discovered his Three Laws (of Planetary Motion).
D)He discovered four moons (or satellites) of Jupiter.
15
Which of the following is a contribution that Galileo made to astronomy?
A)He determined the size of the Earth.
B)He discovered epicycles.
C)He developed the first successful heliocentric theory.
D)He discovered four moons (or satellites) of Jupiter.





To learn more about the book this website supports, please visit its Information Center.
(c)2004 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.


Arny Explorations Updated 3eOnline Learning Center

Home > Chapter 1 > Online Quiz