Question 1

We are located at the

Accepted Answer

A)  edge of our entire universe 
B)  center of our observable universe 
C)  edge of our observable universe 
D)  center of our entire universe 
A)  edge of our entire universe 
B)  center of our observable universe 
C)  edge of our observable universe 
D)  center of our entire universe

Question 2

The total number of protons and neutrons in the nucleus of an tom is referred to as its

Accepted Answer

A)  atomic mass number 
B)  average atomic mass 
C)  proton number 
D)  atomic number 
A)  atomic mass number 
B)  average atomic mass 
C)  proton number 
D)  atomic number

Question 3

The longest wavelength electromagnetic radiation is

Accepted Answer

A)  radio waves 
B)  gamma rays 
C)  microwaves 
D)  infrared 
A)  radio waves 
B)  gamma rays 
C)  microwaves 
D)  infrared

Question 4

A star more massive than the Sun will have

Accepted Answer

A)  an identical lifetime as the Sun because although its overall mass is higher, the mass of its nuclear burning core is the same 
B)  a longer lifetime because it has more fuel to burn 
C)  a shorter lifetime because although its overall mass is higher, the mass of its nuclear burning core is smaller 
D)  a shorter lifetime because its central core is hotter and denser 
A)  an identical lifetime as the Sun because although its overall mass is higher, the mass of its nuclear burning core is the same 
B)  a longer lifetime because it has more fuel to burn 
C)  a shorter lifetime because although its overall mass is higher, the mass of its nuclear burning core is smaller 
D)  a shorter lifetime because its central core is hotter and denser

Question 5

High mass stars can fuse in their cores

Accepted Answer

A)  all of the chemical elements 
B)  elements up to and including iron 
C)  elements up to and including carbon 
D)  only elements heavier than iron 
A)  all of the chemical elements 
B)  elements up to and including iron 
C)  elements up to and including carbon 
D)  only elements heavier than iron

Question 6

Atoms are held together by

Accepted Answer

A)  the electrostatic force of attraction between the protons in the nucleus and the surrounding electrons 
B)  the combined electrostatic force of attraction between the protons and neutrons in the nucleus and the surrounding electrons 
C)  the force of gravitational attraction between the protons in the nucleus and the surrounding electrons 
D)  the electrostatic force of attraction between the neutrons in the nucleus and the surrounding electrons 
A)  the electrostatic force of attraction between the protons in the nucleus and the surrounding electrons 
B)  the combined electrostatic force of attraction between the protons and neutrons in the nucleus and the surrounding electrons 
C)  the force of gravitational attraction between the protons in the nucleus and the surrounding electrons 
D)  the electrostatic force of attraction between the neutrons in the nucleus and the surrounding electrons

Question 7

Which subatomic particle or particles have no charge?

Accepted Answer

A)  electrons and neutrons 
B)  all subatomic particles have no charge 
C)  neutrons only 
D)  neutrons and protons 
A)  electrons and neutrons 
B)  all subatomic particles have no charge 
C)  neutrons only 
D)  neutrons and protons

Question 8

Apart from terrestrial planets, another promising place to find life in the solar system is

Accepted Answer

A)  inside comets 
B)  beneath the surfaces of icy Jovian moons 
C)  in the atmospheres of Jovian planets 
D)  inside asteroids 
A)  inside comets 
B)  beneath the surfaces of icy Jovian moons 
C)  in the atmospheres of Jovian planets 
D)  inside asteroids

Question 9

The number of stars in the observable universe

Accepted Answer

A)  is approximately equal to the population of the Earth at the turn of the 21st century 
B)  cannot be estimated 
C)  is approximately equal to the total number of sand grains on every beach on Earth 
D)  is infinitely large 
A)  is approximately equal to the population of the Earth at the turn of the 21st century 
B)  cannot be estimated 
C)  is approximately equal to the total number of sand grains on every beach on Earth 
D)  is infinitely large

Question 10

If we had detected a signal from an advanced civilization in 2013 which was located at a distance of 7 light-years from the Sun, in what year was the signal actually transmitted?

Accepted Answer

A)  2007 
B)  2013 
C)  2020 
D)  2006 
A)  2007 
B)  2013 
C)  2020 
D)  2006

Question 11

Approximately how many stars are there in the Milky Way galaxy?

Accepted Answer

A)  a few hundred million 
B)  a few hundred thousand 
C)  more than a hundred billion 
D)  a trillion or more 
A)  a few hundred million 
B)  a few hundred thousand 
C)  more than a hundred billion 
D)  a trillion or more

Question 12

If the size of our solar system were scaled down to a radius of 1 kilometer, approximately how far away would the nearest stars be on this scale?

Accepted Answer

A)  several hundred kilometers 
B)  several million kilometers 
C)  several thousand kilometers 
D)  several billion kilometers 
A)  several hundred kilometers 
B)  several million kilometers 
C)  several thousand kilometers 
D)  several billion kilometers

Question 13

Which of the following do the atoms ¹⁴C and ¹⁴N have in common?

Accepted Answer

A)  total number of protons and neutrons 
B)  number of electrons 
C)  number of neutrons 
D)  number of protons 
A)  total number of protons and neutrons 
B)  number of electrons 
C)  number of neutrons 
D)  number of protons

Question 14

Photon A has a higher energy than photon B. Given this information, which of the following statements is true?

Accepted Answer

A)  Photon A has a longer wavelength than photon B 
B)  Photon A travels faster in a vacuum than photon B 
C)  Photon A has a higher frequency than photon B 
D)  Photon A has a lower frequency than photon B 
A)  Photon A has a longer wavelength than photon B 
B)  Photon A travels faster in a vacuum than photon B 
C)  Photon A has a higher frequency than photon B 
D)  Photon A has a lower frequency than photon B

Question 15

When electromagnetic radiation is created it is said to be

Accepted Answer

A)  reflected 
B)  emitted 
C)  refracted 
D)  absorbed 
A)  reflected 
B)  emitted 
C)  refracted 
D)  absorbed

Question 16

Which subatomic particle or particles is/are found in the nucleus of an atom?

Accepted Answer

A)  protons and neutrons 
B)  protons only 
C)  neutrons and electrons 
D)  electrons and protons 
A)  protons and neutrons 
B)  protons only 
C)  neutrons and electrons 
D)  electrons and protons

Question 17

Low mass stars like our Sun can fuse in their cores

Accepted Answer

A)  all of the chemical elements 
B)  elements up to and including iron 
C)  elements up to and including carbon 
D)  only elements heavier than iron 
A)  all of the chemical elements 
B)  elements up to and including iron 
C)  elements up to and including carbon 
D)  only elements heavier than iron

Question 18

Pluto, Eris and Ceres are all examples of

Accepted Answer

A)  Kuiper belt objects 
B)  dwarf planets 
C)  asteroids 
D)  planets 
A)  Kuiper belt objects 
B)  dwarf planets 
C)  asteroids 
D)  planets

Question 19

According to the nebular theory, as an interstellar cloud forms a new star and planetary system it

Accepted Answer

A)  expands, cools down, and spins slower 
B)  contracts, heats up, and spins faster 
C)  expands, cools down, and spins faster 
D)  contracts, heats up, and spins slower 
A)  expands, cools down, and spins slower 
B)  contracts, heats up, and spins faster 
C)  expands, cools down, and spins faster 
D)  contracts, heats up, and spins slower

Question 20

The number of vibrations per second of an electromagnetic wave is referred to as its

Accepted Answer

A)  energy 
B)  frequency 
C)  speed 
D)  wavelength 
A)  energy 
B)  frequency 
C)  speed 
D)  wavelength

We are located at the

The total number of protons and neutrons in the nucleus of an tom is referred to as its

The longest wavelength electromagnetic radiation is

A star more massive than the Sun will have

High mass stars can fuse in their cores

Atoms are held together by

Which subatomic particle or particles have no charge?

Apart from terrestrial planets, another promising place to find life in the solar system is

The number of stars in the observable universe

If we had detected a signal from an advanced civilization in 2013 which was located at a distance of 7 light-years from the Sun, in what year was the signal actually transmitted?

Approximately how many stars are there in the Milky Way galaxy?

If the size of our solar system were scaled down to a radius of 1 kilometer, approximately how far away would the nearest stars be on this scale?

Which of the following do the atoms ¹⁴C and ¹⁴N have in common?

Photon A has a higher energy than photon B. Given this information, which of the following statements is true?

When electromagnetic radiation is created it is said to be

Which subatomic particle or particles is/are found in the nucleus of an atom?

Low mass stars like our Sun can fuse in their cores

Pluto, Eris and Ceres are all examples of

According to the nebular theory, as an interstellar cloud forms a new star and planetary system it

The number of vibrations per second of an electromagnetic wave is referred to as its

A Universe of Life

The Science of Life in the Universe

The Habitability of Earth

The Nature of Life on Earth

The Origin and Evolution of Life on Earth

Searching for Life in Our Solar System

Mars

Life on Jovian Moons

The Nature and Evolution of Habitability

Extrasolar Planets: Their Nature and Potential Habitability

The Search for Extraterrestrial Intelligence

Interstellar Travel and the Fermi Paradox

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Exam 3: The Universal Context of Life

We are located at the

The total number of protons and neutrons in the nucleus of an tom is referred to as its

The longest wavelength electromagnetic radiation is

A star more massive than the Sun will have

High mass stars can fuse in their cores

Atoms are held together by

Which subatomic particle or particles have no charge?

Apart from terrestrial planets, another promising place to find life in the solar system is

The number of stars in the observable universe

If we had detected a signal from an advanced civilization in 2013 which was located at a distance of 7 light-years from the Sun, in what year was the signal actually transmitted?

Approximately how many stars are there in the Milky Way galaxy?

If the size of our solar system were scaled down to a radius of 1 kilometer, approximately how far away would the nearest stars be on this scale?

Which of the following do the atoms ¹⁴C and ¹⁴N have in common?

Photon A has a higher energy than photon B. Given this information, which of the following statements is true?

When electromagnetic radiation is created it is said to be

Which subatomic particle or particles is/are found in the nucleus of an atom?

Low mass stars like our Sun can fuse in their cores

Pluto, Eris and Ceres are all examples of

According to the nebular theory, as an interstellar cloud forms a new star and planetary system it

The number of vibrations per second of an electromagnetic wave is referred to as its

A Universe of Life

The Science of Life in the Universe

The Habitability of Earth

The Nature of Life on Earth

The Origin and Evolution of Life on Earth

Searching for Life in Our Solar System

Mars

Life on Jovian Moons

The Nature and Evolution of Habitability

Extrasolar Planets: Their Nature and Potential Habitability

The Search for Extraterrestrial Intelligence

Interstellar Travel and the Fermi Paradox

Filters