Question 1

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 2

Which subatomic particle or particles are found in the nuclei of atoms?

Accepted Answer

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

Question 3

Many of the extrasolar planetary systems discovered to date are

Accepted Answer

A)  very similar to our own solar system with inner rocky terrestrial planets and outer gaseous jovian planets 
B)  quite different to our own solar system, many with jovian planets found close to their parent stars 
C)  similar to our solar system in having inner rocky terrestrial planets but different in having no jovian planets 
D)  identical to our own with the same number and types of planet as our own solar system 
A)  very similar to our own solar system with inner rocky terrestrial planets and outer gaseous jovian planets 
B)  quite different to our own solar system, many with jovian planets found close to their parent stars 
C)  similar to our solar system in having inner rocky terrestrial planets but different in having no jovian planets 
D)  identical to our own with the same number and types of planet as our own solar system

Question 4

When electromagnetic radiation is created it is said to be

Accepted Answer

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

Question 5

The main way astronomers determine the physical and chemical properties of an object in the distant universe is through

Accepted Answer

A)  photography 
B)  spectroscopy 
C)  astrometry 
D)  direct measurement 
A)  photography 
B)  spectroscopy 
C)  astrometry 
D)  direct measurement

Question 6

In the context of life in the universe, which of the following discoveries of astronomy suggests that the processes that formed life on Earth could have occurred elsewhere?

Accepted Answer

A)  the universe is very old 
B)  the laws of physics are the same everywhere 
C)  the universe is very large 
D)  the chemical elements that make up life on Earth are common 
A)  the universe is very old 
B)  the laws of physics are the same everywhere 
C)  the universe is very large 
D)  the chemical elements that make up life on Earth are common

Question 7

Which of the following places the structures in our own part of the universe in order of increasing (smallest to largest) scale?

Accepted Answer

A)  Solar System, Local Group, Milky Way Galaxy, Local Supercluster 
B)  Local Supercluster, Local Group, Milky Way Galaxy, Solar System 
C)  Solar System, Milky Way Galaxy, Local Supercluster, Local Group 
D)  Solar System, Milky Way Galaxy, Local Group, Local Supercluster 
A)  Solar System, Local Group, Milky Way Galaxy, Local Supercluster 
B)  Local Supercluster, Local Group, Milky Way Galaxy, Solar System 
C)  Solar System, Milky Way Galaxy, Local Supercluster, Local Group 
D)  Solar System, Milky Way Galaxy, Local Group, Local Supercluster

Question 8

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 9

In the outer regions of the solar nebula where temperatures were low,

Accepted Answer

A)  only rock and iron could condense 
B)  only hydrogen compounds could condense as ices 
C)  hydrogen and helium gases were able to condense 
D)  in addition to rock and iron, hydrogen compounds also condensed as ices 
A)  only rock and iron could condense 
B)  only hydrogen compounds could condense as ices 
C)  hydrogen and helium gases were able to condense 
D)  in addition to rock and iron, hydrogen compounds also condensed as ices

Question 10

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

The number of stars in the observable universe

Which subatomic particle or particles are found in the nuclei of atoms?

Many of the extrasolar planetary systems discovered to date are

When electromagnetic radiation is created it is said to be

The main way astronomers determine the physical and chemical properties of an object in the distant universe is through

In the context of life in the universe, which of the following discoveries of astronomy suggests that the processes that formed life on Earth could have occurred elsewhere?

Which of the following places the structures in our own part of the universe in order of increasing (smallest to largest) scale?

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

In the outer regions of the solar nebula where temperatures were low,

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

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

Habitability Outside the Solar System

The Search for Extraterrestrial Intelligence

Interstellar Travel and the Fermi Paradox

Filters

Exam 3: The Universal Context of Life

The number of stars in the observable universe

Which subatomic particle or particles are found in the nuclei of atoms?

Many of the extrasolar planetary systems discovered to date are

When electromagnetic radiation is created it is said to be

The main way astronomers determine the physical and chemical properties of an object in the distant universe is through

In the context of life in the universe, which of the following discoveries of astronomy suggests that the processes that formed life on Earth could have occurred elsewhere?

Which of the following places the structures in our own part of the universe in order of increasing (smallest to largest) scale?

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

In the outer regions of the solar nebula where temperatures were low,

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

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

Habitability Outside the Solar System

The Search for Extraterrestrial Intelligence

Interstellar Travel and the Fermi Paradox

Filters

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