-Choose the correct answer by clicking on your answer choice. Only one answer is correct. (2 pts. each)
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COMPLETION
-Complete the following questions by selecting the correct answer from the word bank. Misspelled words will be marked as incorrect. Some answers may be used more than once, others may not be used at all. (2 pts. each)
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 26
26.
In order to calculate a star's _____________ magnitude, it is necessary to know it's _________________ magnitude.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 27
27.
The sun has a(n) __________________ of +4.8 and a(n) ___________________ of -26.8.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 28
28.
The sun's _________________ is very great because it is so close to Earth.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 29
29.
A cool star that has lost it's hydrogen is a(n) ___________________.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 30
30.
Gas or dust from a nearby star that falls into a(n) _________________ gives off X-Rays, allowing astronomers to detect this object.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 31
31.
It is difficult to locate ________________ because they do not give off light.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 32
32.
One of the most powerful energy sources in the universe is a(n) __________________.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 33
33.
According to the Big Bang Theory, _________________ filled all of space following the original explosion.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 34
34.
The distance traveled by a photon of light in one year is called a __________________.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 35
35.
A star's ______________ does not depend on its distance from Earth.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 36
36.
The study of the origin, structure and future of the universe is called __________________.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 37
37.
Large stars end their lives in huge explosions called_________________.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 38
38.
Light travels in year over a distance called a(n) ________________.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 39
39.
How bright a star is at 32.6 light years from Earth is called _________________.
Word Bank
black hole(s) red giant cosmic background radiation light year quasar apparent magnitude apparent absolute cosmology globular clusters neutron star supernovas elliptical irregular spiral absolute magnitude parallax
Question 40
40.
A star may seem to move in place because of ______________.
Matching
- Complete the following matching questions by clicking on the correct answer. Only one answer is correct. (2 pts. each)
Question 41
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Do NOT forget to turn in this assignment on Google Classroom after you have submitted it here! No credit will be awarded for unsubmitted assignments.
The color of a star depends on it's
A. size.
B. temperature.
C. shape.
D. magnitude.
What can a scientist learn about a star from its spectrum?
A. its color
B. its size
C. its composition and temperature
D. its age
What color are the hottest stars?
A. red
B. yellow
C. orange
D. blue
What are objects formed from the materials in the core of a supernova?
A. black holes and supergiants
B. red giants and white dwarfs
C. black holes and neutron stars
D. neutron stars and white dwarfs
Which of the following is true?
A. New stars form from the material of old stars.
B. A star does not change its size ot temperature during its life.
C. The shortest stage in a star's life cycle is the main sequence.
D. When a star dies, none of its material returns to space.
Where are globular clusters found?
A. along the spiral disk of galaxies
B. in the spherical halo of spiral galaxies and near elliptical galaxies
C. in the center bulge of spiral galaxies
D. in the spiral arms of spiral galaxies
Where are open clusters found?
A. along the spiral disk of galaxies
B. in the spherical halo of spiral galaxies and near elliptical galaxies
C. in the center bulge of spiral galaxies
D. in the spiral arms of spiral galaxies
Which of the following statements is NOT true?
A. New stars form in some nebulas.
B. New stars form in a few elliptical galaxies.
C. New stars form in most globular clusters.
D. New stars form in the spiral arms of spiral galaxies.
Why do scientists study distant galaxies?
A. to learn what galaxies are made of
B. to learn what early galaxies looked like
C. to learn about space travel
D. to learn about the speed of light
Which of the following statements is true?
A. The universe is expanding outward.
B. The universe is getting smaller every day.
C. The universe contracts and expands on a regular basis.
D. Scientists do not know if the universe is getting larger or smaller.
How are objects organized in the universe?
A. Objects are scattered through space according to a random pattern.
B. Objects are organized according to a loosely repeated pattern and are part of a larger system.
C. Objects are organized according to a loosely repeated pattern but are not part of any other system.
D. Objects are not organized in any particular way.
What do scientists think will happen to the universe?
A. Scientists think the universe will probably always exist.
B. Scientists estimate the universe will die in about a billion years.
C. Scientists estimate that the universe will die in about 13.7 billion years.
D. Scientists predict that the universe will die in the future, but they don't know when.
Which of the following is the hottest?
A. a red giant superstar
B. a small white dwarf star
C. a main-sequence yellow star
D. a main-sequence blue star
According to the Big Bang Theory, the universe is about
A. 470 billion years old
B. 500 billion years old
C. 4.7 billion years old
D. 13.7 billion years old
Scientists think that the Milky Way probably is
A. an irregular galaxy.
B. an elliptical galaxy.
C. a spiral galaxy.
D. a nebula.
What is one way scientists use to calculate the age of the universe?
A. measure the distance from Earth to nearby stars
B. measure the distance from Earth to various galaxies
C. measure the distance from Earth to the sun
D. measure the size of various galaxies
Elliptical galaxies and the halos of spiral galaxies contain groups of stars called
A. globular clusters.
B. open clusters.
C. nebulae.
D. neutron stars.
According to the Big Bang Theory, what filled the universe after the original explosion?
A. nebulae
B. globular clusters
C. open clusters
D. cosmic background radiation
The universe is organized according to
A. a random pattern.
B. a loosely arranged structure.
C. a rigid and complex pattern.
D. no pattern or structure.
What are the three major types of galaxies identified by Edwin Hubble?
A. spiral, triangular, irregular
B. spiral, elliptical, irregular
C. spiral, triangular, elliptical
D. triangular, elliptical, irregular
Why do scientists study distant galaxies to learn about early galaxies?
A. Distant galaxies are just beginning to form, so they are very similar to early galaxies.
B. Distant galaxies have not changed as much as close galaxies, so they are the most similar to early galaxies.
C. Distant galaxies share many characteristics with early galaxies.
D. Because it takes a long time for light to travel through space, looking at distant galaxies shows what early galaxies looked like.
Which of the following magnitudes indicates the brightest star?
A. -1
B. 0
C. -0.11
D. +4
What binds a galaxy together?
A. stars
B. gravity
C. brightness
D. dust
What classification do astronomers use for galaxies?
A. size
B. age
C. color
D. shape
What type of galaxy is the Milky Way?
A. a spiral galaxy
B. an irregular galaxy
C. an elliptical galaxy
D. an odd-shaped galaxy
The brightness of a star as it appears to an observer on Earth.
A. light year
B. spectrum
C. parallax
D. apparent magnitude
E. absolute magnitude
An apparent shift in an object's position when viewed from different locations.
A. light year
B. spectrum
C. parallax
D. apparent magnitude
E. absolute magnitude
The band of color produced when white light passes through a prism.
A. light year
B. spectrum
C. parallax
D. apparent magnitude
E. absolute magnitude
The study of the origin, structure and future of the universe.
A. black hole
B. main sequence
C. absolute magnitude
D. apparent magnitude
E. light year
F. cosmology
G. quasar
The distance that light travels in one year; about 9.5 trillion kilometers.
A. black hole
B. main sequence
C. absolute magnitude
D. apparent magnitude
E. light year
F. cosmology
G. quasar
A distant, starlike source of light.
A. black hole
B. main sequence
C. absolute magnitude
D. apparent magnitude
E. light year
F. cosmology
G. quasar
The brightest star as seen from Earth.
A. black hole
B. main sequence
C. absolute magnitude
D. apparent magnitude
E. light year
F. cosmology
G. quasar
The diagonal pattern on the H-R diagram where most stars appear.
A. black hole
B. main sequence
C. absolute magnitude
D. apparent magnitude
E. light year
F. cosmology
G. quasar
An object so massive and dense that not even light can escape its gravitational pull.
A. black hole
B. main sequence
C. absolute magnitude
D. apparent magnitude
E. light year
F. cosmology
G. quasar
The brightness of a star at a distance of 32.6 light years from Earth.