Question 1

The discovery of a cosmic microwave background

Accepted Answer

A)  supported the idea of a steady state universe. 
B)  showed that the universe has a constant heat source. 
C)  proved that matter in the universe is grouped in superclusters. 
D)  gave support to the Big Bang theory. 
E)  indicated that supernovas produced all known elements. 
A)  supported the idea of a steady state universe. 
B)  showed that the universe has a constant heat source. 
C)  proved that matter in the universe is grouped in superclusters. 
D)  gave support to the Big Bang theory. 
E)  indicated that supernovas produced all known elements.

Question 2

Antimatter is relatively rare in the universe because

Accepted Answer

A)  antimatter is dark matter that is very difficult to detect with today's technology. 
B)  cosmic microwave background radiation absorbs antimatter in space. 
C)  antimatter is a short-lived transient state for quarks. 
D)  laboratory research indicates that matter was more plentiful early and annihilated the antimatter. 
E)  each galaxy produces a specific type of matter, according to Hubble's law. 
A)  antimatter is dark matter that is very difficult to detect with today's technology. 
B)  cosmic microwave background radiation absorbs antimatter in space. 
C)  antimatter is a short-lived transient state for quarks. 
D)  laboratory research indicates that matter was more plentiful early and annihilated the antimatter. 
E)  each galaxy produces a specific type of matter, according to Hubble's law.

Question 3

The redshift surveys of the 1980s

Accepted Answer

A)  determined the velocity of superclusters. 
B)  were significant in calculating Hubble's constant. 
C)  measured the distance to thousands of galaxies. 
D)  definitively proved the Big Bang theory. 
E)  provided a foundation for planetary exploration. 
A)  determined the velocity of superclusters. 
B)  were significant in calculating Hubble's constant. 
C)  measured the distance to thousands of galaxies. 
D)  definitively proved the Big Bang theory. 
E)  provided a foundation for planetary exploration.

Question 4

The Big Bang theory and the theory of the steady state universe differ

Accepted Answer

A)  because only the Big Bang theory states that the universe is expanding. 
B)  because only the steady state theory states that the universe is expanding. 
C)  in that only the steady state theory lacks a specific beginning for the universe. 
D)  in that only the steady state universe incorporates an idea about the missing dark matter. 
E)  only in name. 
A)  because only the Big Bang theory states that the universe is expanding. 
B)  because only the steady state theory states that the universe is expanding. 
C)  in that only the steady state theory lacks a specific beginning for the universe. 
D)  in that only the steady state universe incorporates an idea about the missing dark matter. 
E)  only in name.

Question 5

According to the Big Bang theory, what accompanied the freezing of the universe at 10-35 seconds after time zero?

Accepted Answer

A)  Antimatter was not yet eliminated. 
B)  All four fundamental forces were unified. 
C)  Stable nuclei formed. 
D)  There was a short period of inflation. 
E)  The strong force separated from the weak force. 
A)  Antimatter was not yet eliminated. 
B)  All four fundamental forces were unified. 
C)  Stable nuclei formed. 
D)  There was a short period of inflation. 
E)  The strong force separated from the weak force.

Question 6

How far away is a galaxy that is moving away from Earth at 100,000 km/s? Assume 50 km/s Mpc for the Hubble constant.

Accepted Answer

A)  2000 Mpc 
B)  more than 6 light years 
C)  8000 Mpc 
D)  more than 4 light years 
E)  2000 Mpc and more than 6 light years 
A)  2000 Mpc 
B)  more than 6 light years 
C)  8000 Mpc 
D)  more than 4 light years 
E)  2000 Mpc and more than 6 light years

Question 7

Why are not all galaxies the same shape and size? What does this suggest about their history?

Accepted Answer

Size is a factor of the early gravitatio

Question 8

Hubble's law tells us that

Accepted Answer

A)  the distance to other galaxies can be measured by calculating the blue shift of the light we receive from them. 
B)  the rate at which a galaxy recedes from the Earth is proportional to the square of the distance from the Earth. 
C)  the rate at which a galaxy advances toward the Earth is proportional to its distance from the Earth. 
D)  the distance to other galaxies can be measured by calculating the red shift of the light we receive from them. 
E)  the rate at which a galaxy moves is the Hubble constant. 
A)  the distance to other galaxies can be measured by calculating the blue shift of the light we receive from them. 
B)  the rate at which a galaxy recedes from the Earth is proportional to the square of the distance from the Earth. 
C)  the rate at which a galaxy advances toward the Earth is proportional to its distance from the Earth. 
D)  the distance to other galaxies can be measured by calculating the red shift of the light we receive from them. 
E)  the rate at which a galaxy moves is the Hubble constant.

Question 9

What does the term quasar mean and what is a quasar?

Accepted Answer

This term means quasi-stellar radio sour

Question 10

In Hubble's Law equation, there is a constant (Hubble's constant). What is that constant and in what unit is it expressed? What is a megaparsec?

Accepted Answer

The value of the constant is 7

The discovery of a cosmic microwave background

Antimatter is relatively rare in the universe because

The redshift surveys of the 1980s

The Big Bang theory and the theory of the steady state universe differ

According to the Big Bang theory, what accompanied the freezing of the universe at 10^-35seconds after time zero?

How far away is a galaxy that is moving away from Earth at 100,000 km/s? Assume 50 km/s Mpc for the Hubble constant.

Why are not all galaxies the same shape and size? What does this suggest about their history?

Hubble's law tells us that

What does the term quasar mean and what is a quasar?

In Hubble's Law equation, there is a constant (Hubble's constant). What is that constant and in what unit is it expressed? What is a megaparsec?

Science: a Way of Knowing: How Do You Know What You Know

The Ordered Universe: Why Do Planets Appear to Wander Slowly Across the Sky

Energy: Why Must Animals Eat to Stay Alive

Heat and the Second Law of Thermodynamics: Why Is It Easier to Make an Omelet From an Egg Than to Make an Egg From an Omelet

Electricity and Magnetism: What Is Lightning

Waves and Electromagnetic Radiation: What Is Color

Albert Einstein and the Theory of Relativity: Can a Human Ever Travel Faster Than the Speed of Light, at Warp Speed

The Atom: Why Are There so Many Different Materials in the World

Quantum Mechanics: How Can the Electron Behave Like Both a Particle and a Wave

Atoms in Combination: the Chemical Bond: How Does Blood Clot

Materials and Their Properties: How Have Computers Gotten so Much Faster

The Nucleus of the Atom: How Do Scientists Determine the Age of the Oldest Human Fossils

The Ultimate Structure of Matter: How Can Antimatter Be Used to Probe the Human Brain

The Stars: How Much Longer Can the Sun Sustain Life on Earth

Earth and Other Planets: Is Earth the Only Planet With Life

Plate Tectonics: Can We Predict Destructive Earthquakes

Earths Many Cycles: Will We Ever Run Out of Fresh Water

Ecology, Ecosystems, and the Environment: Are Human Activities Affecting the Global Environment

Strategies of Life: What Is Life

The Living Cell: What Is the Smallest Living Thing

Molecules of Life: What Constitutes a Healthy Diet

Classical and Modern Genetics: Why Do Offspring Resemble Their Parents

The New Science of Life: Can We Cure Cancer

Evolution: How Did Life Emerge on the Ancient Earth

Filters

Exam 15: Cosmology: Will the Universe End

The discovery of a cosmic microwave background

Antimatter is relatively rare in the universe because

The redshift surveys of the 1980s

The Big Bang theory and the theory of the steady state universe differ

According to the Big Bang theory, what accompanied the freezing of the universe at 10-35 seconds after time zero?

How far away is a galaxy that is moving away from Earth at 100,000 km/s? Assume 50 km/s Mpc for the Hubble constant.

Why are not all galaxies the same shape and size? What does this suggest about their history?

Hubble's law tells us that

What does the term quasar mean and what is a quasar?

In Hubble's Law equation, there is a constant (Hubble's constant). What is that constant and in what unit is it expressed? What is a megaparsec?

Science: a Way of Knowing: How Do You Know What You Know

The Ordered Universe: Why Do Planets Appear to Wander Slowly Across the Sky

Energy: Why Must Animals Eat to Stay Alive

Heat and the Second Law of Thermodynamics: Why Is It Easier to Make an Omelet From an Egg Than to Make an Egg From an Omelet

Electricity and Magnetism: What Is Lightning

Waves and Electromagnetic Radiation: What Is Color

Albert Einstein and the Theory of Relativity: Can a Human Ever Travel Faster Than the Speed of Light, at Warp Speed

The Atom: Why Are There so Many Different Materials in the World

Quantum Mechanics: How Can the Electron Behave Like Both a Particle and a Wave

Atoms in Combination: the Chemical Bond: How Does Blood Clot

Materials and Their Properties: How Have Computers Gotten so Much Faster

The Nucleus of the Atom: How Do Scientists Determine the Age of the Oldest Human Fossils

The Ultimate Structure of Matter: How Can Antimatter Be Used to Probe the Human Brain

The Stars: How Much Longer Can the Sun Sustain Life on Earth

Earth and Other Planets: Is Earth the Only Planet With Life

Plate Tectonics: Can We Predict Destructive Earthquakes

Earths Many Cycles: Will We Ever Run Out of Fresh Water

Ecology, Ecosystems, and the Environment: Are Human Activities Affecting the Global Environment

Strategies of Life: What Is Life

The Living Cell: What Is the Smallest Living Thing

Molecules of Life: What Constitutes a Healthy Diet

Classical and Modern Genetics: Why Do Offspring Resemble Their Parents

The New Science of Life: Can We Cure Cancer

Evolution: How Did Life Emerge on the Ancient Earth

Filters

According to the Big Bang theory, what accompanied the freezing of the universe at 10^-35seconds after time zero?