Astronomy Exam 1 review ACTUAL
QUESTIONS AND CORRECT ANSWERS
Which of the following statements about the celestial sphere is NOTtrue?
a.
The celestial sphere does not exist physically
b.
From any location on Earth, we can see only half the celestial sphere at any one
time
c.
When we look in the sky, the stars all appear to be located on the celestial
sphere.
d.
Earth is placed at the center of the celestial sphere.
e.
The "celestial sphere" is just another name for our universe. - CORRECT
ANSWERS e. the "celestial Sphere" is just another name for our
universe
Which of the following best describes the modern definition of a constellation?
a.
a group of stars that all lie at about the same distance from Earth
b.
,a pattern of bright stars in the sky
c.
a Greek mythological figure
d.
a collection of stars that are near one another in space
e.
a region of the celestial sphere - CORRECT ANSWERS e. a region of
the celestial sphere
The direction directly overhead of an observer defines his or her
a. celestial pole
b. nadir
c. circumpolar plane
d. zenith
e. meridian - CORRECT ANSWERS d. zenith
If an event were to take place on the Sun, how long would it take for the light it
generates to reach us?
a.
8 minutes
b.
10 hours
c.
,1 second
d.
It would reach us instantaneously - CORRECT ANSWERS a. 8 minutes
Which of the following is false?
a.
A hypothesis must always have one or more testable predictions
b.
A scientific theory may eventually be proven wrong when scientists acquire
new data.
c.
If continual testing of a hypothesis shows it to be valid, it may become an
accepted theory.
d.
A scientific theory is an undisputed fact.
e.
Scientific observations are used to test a hypothesis - CORRECT ANSWERS
d.
A scientific theory is an undisputed fact.
Our universe is approximately 13.7 _________ years old.
, Select one:
a.
thousand
b.
trillion
c.
billion
d.
million - CORRECT ANSWERS c.
billion
Select one:
a.
a spiral galaxy with a disk about 1 billion kilometers in diameter and containing
between 100 million and 1 billion stars
b.
a spherically shaped collection of stars including our solar system and about a
dozen other solar systems, stretching about 4 light-years in diameter
c.
Our star and all the material that orbits it, including its planets and moons.
d.
a spiral galaxy with a disk about 100,000 light-years in diameter and containing
about
100,000 stars
e.
QUESTIONS AND CORRECT ANSWERS
Which of the following statements about the celestial sphere is NOTtrue?
a.
The celestial sphere does not exist physically
b.
From any location on Earth, we can see only half the celestial sphere at any one
time
c.
When we look in the sky, the stars all appear to be located on the celestial
sphere.
d.
Earth is placed at the center of the celestial sphere.
e.
The "celestial sphere" is just another name for our universe. - CORRECT
ANSWERS e. the "celestial Sphere" is just another name for our
universe
Which of the following best describes the modern definition of a constellation?
a.
a group of stars that all lie at about the same distance from Earth
b.
,a pattern of bright stars in the sky
c.
a Greek mythological figure
d.
a collection of stars that are near one another in space
e.
a region of the celestial sphere - CORRECT ANSWERS e. a region of
the celestial sphere
The direction directly overhead of an observer defines his or her
a. celestial pole
b. nadir
c. circumpolar plane
d. zenith
e. meridian - CORRECT ANSWERS d. zenith
If an event were to take place on the Sun, how long would it take for the light it
generates to reach us?
a.
8 minutes
b.
10 hours
c.
,1 second
d.
It would reach us instantaneously - CORRECT ANSWERS a. 8 minutes
Which of the following is false?
a.
A hypothesis must always have one or more testable predictions
b.
A scientific theory may eventually be proven wrong when scientists acquire
new data.
c.
If continual testing of a hypothesis shows it to be valid, it may become an
accepted theory.
d.
A scientific theory is an undisputed fact.
e.
Scientific observations are used to test a hypothesis - CORRECT ANSWERS
d.
A scientific theory is an undisputed fact.
Our universe is approximately 13.7 _________ years old.
, Select one:
a.
thousand
b.
trillion
c.
billion
d.
million - CORRECT ANSWERS c.
billion
Select one:
a.
a spiral galaxy with a disk about 1 billion kilometers in diameter and containing
between 100 million and 1 billion stars
b.
a spherically shaped collection of stars including our solar system and about a
dozen other solar systems, stretching about 4 light-years in diameter
c.
Our star and all the material that orbits it, including its planets and moons.
d.
a spiral galaxy with a disk about 100,000 light-years in diameter and containing
about
100,000 stars
e.
