Question 1

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 2

Magnetic fields in our galaxy trap

Accepted Answer

A) cosmic rays. 
B) radio waves. 
C) spectral lines. 
D) meteoroids. 
A) cosmic rays. 
B) radio waves. 
C) spectral lines. 
D) meteoroids.

Question 3

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 4

Dark energy

Accepted Answer

A) is the energy equivalent of dark matter. 
B) is the energy of black holes. 
C) is the energy of neutrinos. 
D) has an unknown nature as yet. 
A) is the energy equivalent of dark matter. 
B) is the energy of black holes. 
C) is the energy of neutrinos. 
D) has an unknown nature as yet.

Question 5

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 6

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 7

Planetary systems are probably

Accepted Answer

A) very rare in the universe. 
B) present around many stars. 
C) present around all stars. 
D) present only around stars that rotate rapidly. 
A) very rare in the universe. 
B) present around many stars. 
C) present around all stars. 
D) present only around stars that rotate rapidly.

Question 8

The members of the solar system

Accepted Answer

A) came from space and were captured by the sun. 
B) came into being at the same time as the sun did. 
C) were formed from material ejected by the sun after it came into being. 
D) were formed from dark matter. 
A) came from space and were captured by the sun. 
B) came into being at the same time as the sun did. 
C) were formed from material ejected by the sun after it came into being. 
D) were formed from dark matter.

Question 9

In a "closed" universe

Accepted Answer

A) expansion of the universe will continue forever. 
B) no additional new stars will form. 
C) the universe will neither expand nor collapse. 
D) expansion will stop and the universe will ultimately collapse. 
A) expansion of the universe will continue forever. 
B) no additional new stars will form. 
C) the universe will neither expand nor collapse. 
D) expansion will stop and the universe will ultimately collapse.

Question 10

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 11

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 12

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 13

In the universe today there

Accepted Answer

A) seems to be little or no antimatter. 
B) is much antimatter but less than the amount of matter. 
C) are equal amounts of antimatter and matter. 
D) is more antimatter than matter. 
A) seems to be little or no antimatter. 
B) is much antimatter but less than the amount of matter. 
C) are equal amounts of antimatter and matter. 
D) is more antimatter than matter.

Question 14

The "big bang" refers to the origin of

Accepted Answer

A) the sun. 
B) the solar system. 
C) our galaxy. 
D) the universe. 
A) the sun. 
B) the solar system. 
C) our galaxy. 
D) the universe.

Question 15

The Doppler shifting of radiation from the early universe has resulted in today's universe being bathed in a sea of

Accepted Answer

A) cosmic rays. 
B) X-rays. 
C) radio waves. 
D) infrared waves. 
A) cosmic rays. 
B) X-rays. 
C) radio waves. 
D) infrared waves.

Question 16

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 17

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 18

As they came into being, the planets were primarily heated by

Accepted Answer

A) gravitational compression. 
B) solar radiation. 
C) cosmic rays. 
D) cosmic background radiation. 
A) gravitational compression. 
B) solar radiation. 
C) cosmic rays. 
D) cosmic background radiation.

Question 19

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 cm3 between 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 cm3 between denser clouds of gas and dust.

Question 20

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.

Quasars

Magnetic fields in our galaxy trap

The galaxies in the universe are distributed

Dark energy

Nearly all the helium in the universe was formed in

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

Planetary systems are probably

The members of the solar system

In a "closed" universe

Primary cosmic rays consist of

Immediately after the big bang, the universe contained

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

In the universe today there

The "big bang" refers to the origin of

The Doppler shifting of radiation from the early universe has resulted in today's universe being bathed in a sea of

Our galaxy is

The stars in the universe are

As they came into being, the planets were primarily heated by

Interstellar space in our galaxy

Dark matter

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

Quasars

Magnetic fields in our galaxy trap

The galaxies in the universe are distributed

Dark energy

Nearly all the helium in the universe was formed in

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

Planetary systems are probably

The members of the solar system

In a "closed" universe

Primary cosmic rays consist of

Immediately after the big bang, the universe contained

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

In the universe today there

The "big bang" refers to the origin of

The Doppler shifting of radiation from the early universe has resulted in today's universe being bathed in a sea of

Our galaxy is

The stars in the universe are

As they came into being, the planets were primarily heated by

Interstellar space in our galaxy

Dark matter

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