Reading CFA #4 Natural Science
Quiz by Bliss Buehring
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10 questions
Show answers
- Q1Which of the following descriptions best reflects the way the passage is organized?It defines planets, first those in Earth's solar system and then those familiar mostly to astronomersIt focuses first on the search for planets, then sharpens that focus to the search for planets like our own.It refers to mythology, then moves to a technical description of those exoplanets the size of Earth or smallerIt raises the question of whether exoplanets exist and then presents to an equal extent arguments on both sides30sEditDelete
- Q2The passage makes use of both technical terms and:excerpts from the writings of former astronautsrhetorical questionsexcerpts from the writings of astronautsfigurative language30sEditDelete
- Q3What is the main idea in the SECOND paragraph (lines 18-30)?Planets that resemble Earth are extremely hard to detectsome recently discovered exoplanets spin on their axis at the same speed that Earth spins on its axissome exoplanets were once thought to be stars at the center of solar systemsrecently discovered exoplanets have disappointed scientists30sEditDelete
- Q4In line 18, the term "such exotica" refers to:planets and solar systems vastly unlike Earth and its solar systemthe sophisticated equipment used to locate previously unidentified planetsoverblown claims about planets far from Earththe contents of our solar system, in particular Jupiter and Saturn30sEditDelete
- Q5According to the passage, in order to confirm a possible planet using the Kepler method, scientists look for:identical results in images of the same location taken 24 hours apartthree occurrences of a slight dimming in a star that strongly indicates a planet's presencean uninterrupted light originating from the supposed planetevidence of water both as a solid and a liquid on the supposed planet30sEditDelete
- Q6The passage's description of the spectroscopic Doppler technique indicates that it is a method used to identify the:distance between an exoplanet and its former suneffect of a planet's gravitational pull on the sun the planet is orbitingintensity of light reaching Earth from a planet outside Earth's solar systemspeed at which a planet rotates on its axis30sEditDelete
- Q7According to the passage, at the time the passage was written, how many exoplanets had had their picture taken?1137009530sEditDelete
- Q8According to the passage, which of the following is a capability of the Keplerit can travel up to 150 light-years away from EarthIt can determine the distance between an exoplanet and its starIt can determine the surface features of planets well enough to indicate the presence of waterIt can capture the light of more than 100,000 stars in a single patch of sky30sEditDelete
- Q9In the passage, Deneb and Vega are identified as:planets that are only 70 percent larger than Earthformer stars whose traveling light is still visiblestars at the edges of the area examined by the Keplerscientists pioneering in the field of planet searching30sEditDelete
- Q10According to the passage, what do scientists expect to determine about any given transiting planet by combining Kepler results with Doppler observations?the length of its yearits distance from the sunits diameter and massits distance from the Earth30sEditDelete