Question 1

Globular clusters of stars

Accepted Answer

A)  are uniformly distributed throughout the universe. 
B)  are uniformly distributed throughout our galaxy. 
C)  are located above and below the central disk of our galaxy. 
D)  are located in the central disk of our galaxy. 
A)  are uniformly distributed throughout the universe. 
B)  are uniformly distributed throughout our galaxy. 
C)  are located above and below the central disk of our galaxy. 
D)  are located in the central disk of our galaxy.

Question 2

Dark matter

Accepted Answer

A)  apparently occurs only in our galaxy. 
B)  apparently occurs in all galaxies. 
C)  consists of antimatter. 
D)  consists of cosmic rays. 
A)  apparently occurs only in our galaxy. 
B)  apparently occurs in all galaxies. 
C)  consists of antimatter. 
D)  consists of cosmic rays.

Question 3

Primary cosmic rays consist of

Accepted Answer

A)  atomic nuclei, mainly protons. 
B)  neutral atoms, mainly of hydrogen. 
C)  molecules. 
D)  electrons. 
A)  atomic nuclei, mainly protons. 
B)  neutral atoms, mainly of hydrogen. 
C)  molecules. 
D)  electrons.

Question 4

The stars in globular clusters

Accepted Answer

A)  are relatively close together. 
B)  have an average spacing like that of stars in the galactic disk. 
C)  are relatively far apart. 
D)  form spiral arms. 
A)  are relatively close together. 
B)  have an average spacing like that of stars in the galactic disk. 
C)  are relatively far apart. 
D)  form spiral arms.

Question 5

Immediately after the big bang, the universe contained

Accepted Answer

A)  only matter. 
B)  equal amounts of matter and antimatter. 
C)  slightly more matter than antimatter. 
D)  slightly more antimatter than matter. 
A)  only matter. 
B)  equal amounts of matter and antimatter. 
C)  slightly more matter than antimatter. 
D)  slightly more antimatter than matter.

Question 6

Interstellar space in our galaxy

Accepted Answer

A)  is completely empty. 
B)  is completely empty except for clouds of gas and dust. 
C)  contains about 1 atom or molecule per cm3. 
D)  contains about 1 atom or molecule per cm3between denser clouds of gas and dust. 
A)  is completely empty. 
B)  is completely empty except for clouds of gas and dust. 
C)  contains about 1 atom or molecule per cm3. 
D)  contains about 1 atom or molecule per cm3between denser clouds of gas and dust.

Question 7

The galaxies in the universe are distributed

Accepted Answer

A)  uniformly. 
B)  randomly. 
C)  in groups, groups of groups, and so on. 
D)  in spiral arms. 
A)  uniformly. 
B)  randomly. 
C)  in groups, groups of groups, and so on. 
D)  in spiral arms.

Question 8

Nearly all the helium in the universe was formed in

Accepted Answer

A)  the first few minutes after the big bang. 
B)  the interior of stars. 
C)  supernova explosions. 
D)  black holes. 
A)  the first few minutes after the big bang. 
B)  the interior of stars. 
C)  supernova explosions. 
D)  black holes.

Question 9

The number of galaxies in the universe seems to be about

Accepted Answer

A)  200. 
B)  200,000. 
C)  200 million. 
D)  200 billion. 
A)  200. 
B)  200,000. 
C)  200 million. 
D)  200 billion.

Question 10

Considering matter and energy together, the largest component of the universe seems to be

Accepted Answer

A)  electromagnetic radiation of various kinds. 
B)  ordinary matter. 
C)  dark matter. 
D)  dark energy. 
A)  electromagnetic radiation of various kinds. 
B)  ordinary matter. 
C)  dark matter. 
D)  dark energy.

Question 11

Galactic spectra show

Accepted Answer

A)  red and blue shifts. 
B)  red shifts of the same magnitude. 
C)  red shifts that decrease with distance. 
D)  red shifts that increase with distance. 
A)  red and blue shifts. 
B)  red shifts of the same magnitude. 
C)  red shifts that decrease with distance. 
D)  red shifts that increase with distance.

Question 12

The proportionality between the recession speeds of the galaxies and their distances from the earth is known as

Accepted Answer

A)  Hess's Law. 
B)  Herschel's Law. 
C)  Hubble's Law. 
D)  Hersey's Law. 
A)  Hess's Law. 
B)  Herschel's Law. 
C)  Hubble's Law. 
D)  Hersey's Law.

Question 13

Quasars

Accepted Answer

A)  are weak sources of light and radio waves. 
B)  are large in view of the energy they emit. 
C)  show relatively small red shifts, which suggests they are not far away. 
D)  seem to have massive black holes at their centers. 
A)  are weak sources of light and radio waves. 
B)  are large in view of the energy they emit. 
C)  show relatively small red shifts, which suggests they are not far away. 
D)  seem to have massive black holes at their centers.

Question 14

Our galaxy is

Accepted Answer

A)  one of the smallest known. 
B)  average in size. 
C)  one of the largest known. 
D)  impossible to compare with others because they are so far away. 
A)  one of the smallest known. 
B)  average in size. 
C)  one of the largest known. 
D)  impossible to compare with others because they are so far away.

Question 15

Information about the origin of the universe does not come from the

Accepted Answer

A)  fact that spiral galaxies rotate. 
B)  red shifts in galactic spectra. 
C)  relative abundances of hydrogen and helium. 
D)  cosmic background radiation. 
A)  fact that spiral galaxies rotate. 
B)  red shifts in galactic spectra. 
C)  relative abundances of hydrogen and helium. 
D)  cosmic background radiation.

Question 16

The stars in the universe are

Accepted Answer

A)  approximately evenly spaced. 
B)  concentrated near its center. 
C)  grouped in widely separated galaxies. 
D)  irregularly distributed. 
A)  approximately evenly spaced. 
B)  concentrated near its center. 
C)  grouped in widely separated galaxies. 
D)  irregularly distributed.

Question 17

Galaxies

Accepted Answer

A)  have a variety of shapes. 
B)  are evenly distributed in space. 
C)  are moving closer to one another. 
D)  rarely contain more than one or two million stars. 
A)  have a variety of shapes. 
B)  are evenly distributed in space. 
C)  are moving closer to one another. 
D)  rarely contain more than one or two million stars.

Question 18

The heavy elements in the earth were formed in

Accepted Answer

A)  the sun. 
B)  the big bang. 
C)  supernova explosions. 
D)  white dwarfs. 
A)  the sun. 
B)  the big bang. 
C)  supernova explosions. 
D)  white dwarfs.

Question 19

In the past several billion years the rate of expansion of the universe has

Accepted Answer

A)  been constant. 
B)  decreased. 
C)  increased. 
D)  varied irregularly. 
A)  been constant. 
B)  decreased. 
C)  increased. 
D)  varied irregularly.

Question 20

Studies of the cosmic background radiation suggest that matter in the early universe

Accepted Answer

A)  was uniformly distributed. 
B)  had small irregularities that grew into today's galaxies. 
C)  had large irregularities that grew into today's galaxies. 
D)  formed spiral arms like those in today's galaxies. 
A)  was uniformly distributed. 
B)  had small irregularities that grew into today's galaxies. 
C)  had large irregularities that grew into today's galaxies. 
D)  formed spiral arms like those in today's galaxies.

Globular clusters of stars

Dark matter

Primary cosmic rays consist of

The stars in globular clusters

Immediately after the big bang, the universe contained

Interstellar space in our galaxy

The galaxies in the universe are distributed

Nearly all the helium in the universe was formed in

The number of galaxies in the universe seems to be about

Considering matter and energy together, the largest component of the universe seems to be

Galactic spectra show

The proportionality between the recession speeds of the galaxies and their distances from the earth is known as

Quasars

Our galaxy is

Information about the origin of the universe does not come from the

The stars in the universe are

Galaxies

The heavy elements in the earth were formed in

In the past several billion years the rate of expansion of the universe has

Studies of the cosmic background radiation suggest that matter in the early universe

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Organic Chemistry

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

Filters

Exam 19: The Universe Galaxies

Globular clusters of stars

Dark matter

Primary cosmic rays consist of

The stars in globular clusters

Immediately after the big bang, the universe contained

Interstellar space in our galaxy

The galaxies in the universe are distributed

Nearly all the helium in the universe was formed in

The number of galaxies in the universe seems to be about

Considering matter and energy together, the largest component of the universe seems to be

Galactic spectra show

The proportionality between the recession speeds of the galaxies and their distances from the earth is known as

Quasars

Our galaxy is

Information about the origin of the universe does not come from the

The stars in the universe are

Galaxies

The heavy elements in the earth were formed in

In the past several billion years the rate of expansion of the universe has

Studies of the cosmic background radiation suggest that matter in the early universe

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Organic Chemistry

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

Filters