Planetary Science
Exam Materials
Course Introduction
Planetary Science explores the formation, evolution, and characteristics of planets, moons, and other bodies in our solar system and beyond. This course examines planetary atmospheres, surfaces, interiors, and magnetic fields, integrating concepts from geology, physics, chemistry, and astronomy. Students investigate planetary origins, dynamics, and processes such as volcanism, tectonics, and impact cratering, and learn about the methods used to study planets, including remote sensing, spacecraft missions, and sample analysis. The course also considers the potential for life elsewhere in the universe and the implications of recent discoveries in exoplanet research.
Recommended Textbook
Life in the Universe 3rd Edition by Jeffrey O. Bennett
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12 Chapters
1027 Verified Questions
1027 Flashcards
Source URL: https://quizplus.com/study-set/3825 Page 2
Chapter 2: The Science of Life in the Universe
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60 Verified Questions
60 Flashcards
Source URL: https://quizplus.com/quiz/76322
Sample Questions
Q1) The methods of modern science were originated by the A) Mayans
B) Egyptians
C) Greeks
D) Babylonians
Answer: C
Q2) The geocentric model of the Greeks consisted of a
A) flat Earth at the center of the universe surrounded by a dome-shaped sky
B) flat Earth at the center of the universe surrounded by a celestial sphere
C) spherical Earth at the center of the universe surrounded by a dome-shaped sky
D) spherical Earth at the center of the universe surrounded by a celestial sphere
Answer: D
Q3) Scientists always try to
A) be as subjective as possible
B) be as objective as possible
C) disagree with the current paradigm of the time
D) agree with the current paradigm of the time
Answer: B
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Chapter 3: The Universal Context of Life
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110 Verified Questions
110 Flashcards
Source URL: https://quizplus.com/quiz/76321
Sample Questions
Q1) If we compress the entire history of the Earth into one year, modern humans appear
A) a couple of minutes before midnight on New Year's Eve
B) a few seconds before midnight on New Year's Eve
C) at 9 PM on New Year's Eve
D) at midnight on New Year's Eve
Answer: A
Q2) For at least the past few billion years, the rate of expansion of the universe has
A) been slowing down
B) slowed down and stopped
C) been speeding up
D) remained steady
Answer: C
Q3) Far from the Sun in a spherical cloud surrounding the solar system we find
A) Orion's belt
B) the Oort cloud
C) the asteroid belt
D) the Kuiper belt
Answer: B
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Chapter 4: The Habitability of Earth
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135 Verified Questions
135 Flashcards
Source URL: https://quizplus.com/quiz/76320
Sample Questions
Q1) When a sedimentary rock is melted and then re-solidifies it turns into
A) an igneous rock
B) a meteorite
C) a metamorphic rock
D) another sedimentary rock
Q2) The Earth's geological time scale is divided into four main A) epochs
B) periods
C) eras
D) eons
Q3) You chemically analyze a small sample of a meteorite. K-40 and Ar-40 are present in a ratio of approximately 1.65 units of K-40 atoms to 8.35 units of gaseous Ar-40 atoms.
How old is the meteorite given the half-life of this decay is 1.25 billion years?
A) 1.25 billion years
B) 5.00 billion years
C) 2.75 billion years
D) 3.25 billion years
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Chapter 5: The Nature of Life on Earth
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110 Verified Questions
110 Flashcards
Source URL: https://quizplus.com/quiz/76319
Sample Questions
Q1) The organisms Homo habilis, Homo erectus, and Homo sapiens
A) are part of the same genus
B) have nothing in common
C) are part of the same genus and species
D) are part of the same species
Q2) In the tree of life
A) animals are members of the domain eukarya, while plants are members of the domain archaea
B) animals are members of the domain archaea, while plants are members of the domain eukarya
C) both plants and animals are members of the domain archaea
D) both plants and animals are members of the domain eukarya
Q3) A photoheterotroph gets its energy from
A) chemical reactions and its carbon from other organisms
B) the Sun and its carbon from other organisms
C) the Sun and its carbon from its environment
D) chemical reactions and its carbon from its environment
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Chapter 6: The Origin and Evolution of Life on Earth
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110 Verified Questions
110 Flashcards
Source URL: https://quizplus.com/quiz/76318
Sample Questions
Q1) What was one reason that RNA was eventually replaced by DNA as the molecule of choice for storing genetic information?
A) the bases that make up DNA became much more common
B) DNA is far more stable than RNA
C) DNA can catalyze its own replication
D) the double helix of DNA is better able to correct errors in replication
Q2) Stromatolites date back to approximately
A) 4.6 billion years ago
B) 3.5 billion years ago
C) 3.85 billion years ago
D) 4.0 billion years ago
Q3) The study of stromatolites tells us that the origin of life on Earth must have ocurred
A) more than 3.5 billion years ago
B) exactly 3.5 billion years ago
C) less than 3.5 billion years ago
D) exactly 3.85 billion years ago
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Chapter 7: Searching for Life in Our Solar System
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56 Verified Questions
56 Flashcards
Source URL: https://quizplus.com/quiz/76317
Sample Questions
Q1) In order for life to survive in the atmospheres of Jupiter and Saturn it would have to A) be high in the atmosphere where it could collect solar radiation
B) be at the center, close to the rocky core where a rocky surface exists
C) be large and buoyant, allowing it to maintain a stable altitude in the atmosphere
D) float on the surface of the layer of liquid metallic hydrogen
Q2) Mercury and the Moon are probably the least-habitable bodies in the solar system because they
A) are unlikely to have liquids anywhere
B) have never had carbon compounds on their surfaces
C) do not have atmospheres containing oxygen
D) do not receive any sunlight
Q3) The search for life in the solar system is essentially a search for A) organic molecules
B) liquid water
C) molecular oxygen
D) energy sources
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Chapter 8: Mars
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90 Verified Questions
90 Flashcards
Source URL: https://quizplus.com/quiz/76316
Sample Questions
Q1) The majority of the southern hemisphere of Mars represents which geological era?
A) Amazonian
B) Hesperian
C) Cenozoic
D) Noachian
Q2) Compared to the Earth, Mars has experienced wild swings in its axis tilt over relatively short time periods. This is because of its
A) proximity to Jupiter and its lack of a large moon
B) greater distance from the Sun
C) slower rotation rate
D) small size
Q3) If the Earth has a radius of 6378 km and Mars a radius of 3396 km, what is the surface area-to-volume ratio of Mars compared to the Earth?
A) 0.53
B) 2.7
C) 1.9
D) 3.2
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Chapter 9: Life on Jovian Moons
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54 Verified Questions
54 Flashcards
Source URL: https://quizplus.com/quiz/76315
Sample Questions
Q1) The first Jovian moons were discovered by
A) Galileo
B) Tycho
C) Huygens
D) Cassini
Q2) A probe placed in orbit about Europa would be able to confirm the presence of a subsurface ocean using a A) spectrometer to detect the spectral signature of liquid water at and beneath the surface
B) camera to observe the formation and breakup of icebergs on the surface
C) projectile to break the thin icy crust to reveal the water below D) laser altimeter to detect the regular bulging of the thin icy crust on top of the ocean due to tidal forces
Q3) The lack of large impact craters on the surface of Europa is consistent with A) active volcanism that is constantly resurfacing the crust
B) the surface being covered with an ocean of liquid water
C) the crust being so thick and hard that impacts leave no marks on the surface
D) a subsurface ocean of water because large impacts will break the thin crust causing water and slushy ice below to flood out and resurface the crust
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Page 10
Chapter 10: The Nature and Evolution of Habitability
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60 Verified Questions
60 Flashcards
Source URL: https://quizplus.com/quiz/76314
Sample Questions
Q1) Evidence for the loss of water from the atmosphere of Venus via the action of ultraviolet light comes from the
A) observation of auroras high in the Venusian atmosphere caused by the action of ultraviolet light on water molecules
B) fact that today, water is found only in the upper atmosphere of Venus
C) observation of an ozone layer in the atmosphere which is formed from the breakup of water molecules by ultraviolet radiation
D) observation of an excess of heavy hydrogen (deuterium) atoms in the atmosphere which are less easily able to escape once the water is broken apart
Q2) Compared to today, in the future, the Sun's habitable zone will be
A) wider and closer to the Sun
B) narrower and closer to the Sun
C) narrower and farther from the Sun
D) wider and farther from the Sun
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Chapter 11: Habitability Outside the Solar System
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100 Verified Questions
100 Flashcards
Source URL: https://quizplus.com/quiz/76313
Sample Questions
Q1) The wavelengths of radiation from a star that is moving toward us A) can be longer or shorter depending on the distance to the star B) are shorter than if the star were not moving C) are longer than if the star were not moving D) are the same as if the star were not moving
Q2) The great insight gained from the discovery of exoplanets is that planetary systems A) are extremely rare B) exist around every star in our galaxy C) appear to be common D) are only found around sun-like stars
Q3) The total amount of energy that a star radiates out into space is referred to as its A) radiance
B) luminosity
C) surface temperature D) apparent brightness
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Chapter 12: The Search for Extraterrestrial Intelligence
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76 Verified Questions
76 Flashcards
Source URL: https://quizplus.com/quiz/76312
Sample Questions
Q1) The technique of taking data with a SETI instrument placed on a radio telescope that is also used for other astronomical research is referred to as
A) parallel processing
B) piggybanking
C) straddling
D) piggybacking
Q2) Which of the following physical parameters is NOT under the control of a radio telescope?
A) the direction pointed on the sky
B) the bandwidth
C) the time of observation
D) the band
Q3) The Declaration of Principles Concerning Activities Following the Detection of Extraterrestrial Intelligence states that the first thing to do after the detection of a possible signal is to
A) send a reply
B) announce the discovery to the public
C) confirm that it is genuine
D) classify it top secret
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Page 13
Chapter 13: Interstellar Travel and the Fermi Paradox
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66 Verified Questions
66 Flashcards
Source URL: https://quizplus.com/quiz/76311
Sample Questions
Q1) According to Einstein's Special Theory of Relativity, it is not possible to travel
A) faster than 75 % of the speed of light
B) slower than 1 % of the speed of light
C) faster than 90 % of the speed of light
D) at or faster than the speed of light
Q2) In the "Coral Model" of galactic colonization, if we assume that colonizing ships can travel at a few percent of the speed of light, then we might expect all of the habitable planets in the galaxy to be colonized within a few
A) tens of billions of years
B) billion of years
C) hundred thousand years
D) tens of millions of years
Q3) What kind of message from Earth was carried by the Voyager probes?
A) a gold-coated copper record
B) a plaque
C) a DVD
D) a VHS tape
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