Space Science
Midterm Exam
Course Introduction
Space Science explores the fundamental principles governing the universe beyond Earths atmosphere, integrating topics from astronomy, planetary science, and astrophysics. Students gain an understanding of celestial bodies, the solar system, cosmic phenomena, and the physical laws that shape the cosmos. The course covers tools and techniques used for space exploration, such as telescopes and spacecraft, and examines recent discoveries about stars, galaxies, black holes, and the potential for life beyond our planet. Through theoretical analysis and practical investigations, learners develop scientific reasoning skills and an appreciation for humanity's ongoing quest to understand the universe.
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 astronomical object in our sky which plays the most fundamental role in our lives is the
A) Sun
B) Moon
C) nearest star
D) most massive planet in our solar system, Jupiter
Answer: A
Q2) The semi-major axis, a, of an elliptical planetary orbit is equal to the A) width of the ellipse
B) distance between the planet and the Sun at perihelion
C) average distance between the planet and the Sun
D) distance between the planets and the Sun at aphelion
Answer: C
Q3) The discovery of a supernova by Tycho Brahe in 1572 contradicted the commonly held belief that the universe was
A) unchanging
B) spherical
C) infinite
D) perfect
Answer: A
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Chapter 3: The Universal Context of Life
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110 Verified Questions
110 Flashcards
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Sample Questions
Q1) According to current astronomical data, approximately how old is the universe?
A) 65 million years
B) 6000 years
C) 4.6 billion years
D) 14 billion years
Answer: D
Q2) Jupiter's moon Ganymede and Saturn's moon Titan are
A) a similar size to the Earth
B) larger than the planet Mercury
C) smaller than the Earth's moon
D) larger than the Earth
Answer: B
Q3) The technique of collecting radiation and splitting it up into its components so it can be analyzed is referred to as
A) spectrometry
B) photometry
C) astrometry
D) colormetry
Answer: A
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Page 4
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) If originally there were X atoms of radioactive isotope present and now there are only X/16 atoms, how many half-lives have elapsed?
A) 4
B) 1
C) 2
D) 3
Q2) Which type of rock is the easiest to date radiometrically?
A) sedimentary
B) all three types of rock are equally easy to date
C) metamorphic
D) igneous
Q3) A rock sample contains 1/8 micrograms of the parent radioactive isotope Aluminum-26 and 7/8 micrograms of its daughter isotope Magnesium-40. If the half-life of this decay is approximately 700,000 years, how old is this rock?
A) 2.1 million years
B) 2.8 million years
C) 1.4 million years
D) 700,000 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) Bacteria reproduce by the process of cell division. This kind of reproduction is referred to as
A) sexual
B) unsexual
C) asexual
D) kinky
Q2) Energy utilization in living organisms is
A) one of the most basic requirements of life, without which organisms could not maintain order, grow, and reproduce
B) only important for organisms like plants which receive their energy directly from the Sun
C) neither a necessary nor a sufficient condition for life
D) not important for organisms that have adapted to survive extremely low temperatures (psychrophiles)
Q3) Chemists refer to molecules containing carbon atoms as
A) carbonic
B) organic
C) carbonaceous
D) inorganic
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Page 6
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) The relationship between organelles and their host cells can best be described as A) viral
B) sexual
C) symbiotic
D) parasitic
Q2) Why do we think that DNA was probably NOT the first self-replicating molecule?
A) it is able to replicate using carbohydrates rather than proteins
B) it is far to complex to have been the first self-replicating molecule
C) it is able to replicate at high temperatures found near deep ocean vents
D) laboratory have shown that it is able to catalyze its own replication
Q3) How similar are humans and chimpanzees genetically?
A) very different, having only approximately 25% of DNA sequences in common
B) very similar indeed, having approximately 98% of DNA sequences in common
C) fairly similar indeed, having approximately 60% of DNA sequences in common
D) unique, having no DNA sequences in common
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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) If we place living cells in a nonpolar solvent like methane or ethane,
A) their membranes will thicken, preventing molecular transport across the membrane
B) they will rapidly explode due to pressure caused by the solvent building up inside the cell
C) their membranes will most likely dissolve as cell membranes are also nonpolar
D) they will function in much the same way as they do in water
Q2) The Mars Exploration Rovers, Spirit and Opportunity, touched down on the surface of Mars using
A) balloons
B) rockets
C) parachutes
D) airbags
Q3) If life exists on Mars today, it will most likely be found
A) on the surface
B) at the center of the planet
C) beneath the surface
D) floating high in the atmosphere
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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) Due to the dust suspended in the Martian atmosphere, sunrises and sunsets on Mars are
A) red
B) orange
C) blue
D) yellow
Q2) The Southern hemisphere of Mars is at
A) an average elevation and is covered with impact craters
B) a higher than average elevation and is relatively smooth
C) a higher than average elevation and is covered with impact craters
D) a lower than average elevation and is relatively smooth
Q3) What field of science were the experiments on the two Viking lander most closely related to?
A) physics
B) biology
C) geology
D) astronomy
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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) During its descent into Titan's atmosphere, the Huygens probe found
A) large oceans of liquid methane covering the entire surface
B) small pools of liquids directly beneath its descent path
C) a completely smooth, frozen surface with no sign that any liquids had ever been present
D) no sign of flowing or pooled liquids currently on the surface although channels carved in the past by fluids were seen
Q2) In the subsurface ocean beneath Europa's icy crust, if life exists, it most likely originated
A) close to volcanic vents on its ocean floor
B) on the surface and then migrated down into the ocean
C) just below the surface of its thin icy crust where sunlight is still able to penetrate
D) via panspermia from impacts
Q3) Compared to the moons of Jupiter, the moons of Saturn, Uranus, and Neptune
A) contain not only water ice but also methane and other ices
B) are made of pure methane ice
C) contain less methane ice and more water ice
D) are made of pure rock
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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) If we do nothing to slow our emissions of carbon dioxide and other greenhouse gases, by the end of the century the global average temperatures are predicted to increase by
A) 5 to 10 <sup>o</sup>C (10 to 20 <sup>o</sup>F)
B) 1 to 2 <sup>o</sup>C (2 to 4 <sup>o</sup>F)
C) 3 to 5 <sup>o</sup>C (6 to 10 <sup>o</sup>F)
D) less than 1 <sup>o</sup>C (2 <sup>o</sup>F)
Q2) As global warming continues, weather patterns will change causing
A) some parts of the Earth's landmass to become warmer while other parts will actually get colder. The ocean temperatures will continue to rise
B) only the oceans to become warmer while the landmasses will become colder
C) only the landmasses to become warmer while the oceans will become colder
D) all parts of the Earth's surface will become warmer
Q3) Around 4 billion years ago Venus could have been more Earth-like with liquid water on its surface because
A) Venus has a protective magnetic field
B) its atmosphere was thinner
C) Venus was farther from the Sun
D) the Sun was dimmer so Venus would have received less radiation
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Page 11
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) According to our current theory of planet formation, can a Jupiter-like planet form from a rotating disk of dust and gas close to its parent star?
A) no, because the gases would be attracted to rocky terrestrial planets, forming atmospheres
B) yes, because we see Jupiter-like planets with small orbits around other stars
C) no, because it would be too hot for gases to condense
D) no, because there is no gas, only rock in the inner part of the disk
Q2) In most extrasolar planetary systems the center of mass is likely to be located
A) midway between the star and its most massive planet
B) close to the center of the parent star
C) exactly at the center of the parent star
D) close to the center of the most massive planet
Q3) Which of the following methods has been the LEAST successful in detecting extrasolar planets around other star systems?
A) regular changes in the positions of the parent stars with respect to more distant stars as they move across the sky
B) detection of Doppler shifts in the spectra of the parent stars
C) detection of brightness changes in a star as a planet passes in front of it
D) detection of reflected starlight
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Page 12
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) Scientists are generally are not involved in research dealing with the possibility of alien visits to Earth because
A) they are simply not interested in the subject
B) they have been told not to study this subject by military intelligence
C) there is a lack of evidence to suggest there is anything to study
D) it is already well known that aliens are visiting the Earth
Q2) One of the most likely places an advanced civilization might leave an artifact for us to find would be
A) in the desert of Roswell, New Mexico
B) the L4 and L5 points in the Earth-Moon system
C) in the Cydonia region of Mars
D) on the far side of the Moon
Q3) The search for radio signals from intelligent civilizations on planets around nearby solar-type stars is an example of a
A) sky survey
B) targeted search
C) intentional search
D) random sweep
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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) Chemical rockets work on which basic physical principle?
A) Kepler's first law of planetary motion
B) Einstein's special theory of relativity
C) Newton's third law of motion
D) the law of conservation of energy
Q2) Which of the following is not a solution to the Fermi Paradox?
A) no one is interested or able to communicate
B) we are unable to detect their communications
C) we are not interested in communicating
D) no one is out there
Q3) The antimatter equivalent of a proton is called
A) a positron
B) an antiproton
C) a negiproton
D) an anion proton
Q4) What kind of message from Earth was carried by the Pioneer probes?
A) a gold-coated copper record
B) a plaque
C) a DVD
D) a VHS tape
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