COURSES > ASTRONOMY 20 SEC DE1 (20375) FALL 2004 > QUIZZES/EXAMS > REVIEW ASSESSMENT: QUIZ 2 (F04) - LATE SUBMISSIONS

	Review Assessment: Quiz 2 (F04) - late submissions

Question 1	Multiple Choice	0 of 1 point(s)
	Which of the following is a valid statement about Galileo?
	Your Answer: He was condemned by the Inquisition for inventing the theory that Earth moves around Sun. Correct Answer: Galileo's "crime" was that he insisted on using human observations to explain heaven's workings. Feedback: Incorrect. The verdict was never actually reversed. In 1992, a Church Commission forgave the Inquisition for having charged him in the first place. Incorrect. Copernicus was the first to propose that Earth orbits Sun. Galileo was condemned for disobeying orders given to him not to hold, teach, or defend in any way the ideas of the Earth-centered theory of Copernicus. Incorrect. Galileo did not invent the telescope. He was the first to observe the sky systematically and use his observations to question theoretical problems of the day. Incorrect. The verdict was never actually reversed. In 1992, a Church Commission forgave the Inquisition for having charged him in the first place.

Question 2	Multiple Choice	0.67 of 0.67 point(s)
	If the Moon is rising at midnight, the phase of the Moon must be
	Your Answer: third quarter. Correct Answer: third quarter.

Question 3	Multiple Choice	0 of 0.67 point(s)
	Which of the following is not one of, nor follows directly from, Kepler's laws?
	Your Answer: More distant planets move at slower speeds. Correct Answer: The force of attraction between any two objects decreases with the square of the distance between their centers.

Question 4	Multiple Choice	0.67 of 0.67 point(s)
	How did Eratosthenes estimate the size of the earth in 240 B.C.?
	Your Answer: by comparing the maximum altitude of the Sun in two cities at different latitudes Correct Answer: by comparing the maximum altitude of the Sun in two cities at different latitudes

Question 5	Multiple Choice	0 of 0.67 point(s)
	What causes the apparent retrograde motion of the planets?
	Your Answer: As the earth passes another planet, its gravitational pull slows down the other planet so that it appears to be traveling backward. Correct Answer: As the earth passes another planet, the other planet appears to move backward with respect to the background stars, but the planet's motion does not really change.

Question 6	Multiple Choice	0.67 of 0.67 point(s)
	Ancient people who knew the saros cycle could
	Your Answer: predict when an eclipse would happen, but not necessarily what type and where it would be visible. Correct Answer: predict when an eclipse would happen, but not necessarily what type and where it would be visible.

Question 7	Multiple Choice	0 of 0.67 point(s)
	When Copernicus first created his Sun-centered model of the universe, it did not lead to substantially better predictions of planetary positions than the Ptolemaic model. Why not?
	Your Answer: Copernicus misjudged the speeds at which the planets orbit the Sun. Correct Answer: Copernicus used perfect circles for the orbits of the planets.

Question 8	Multiple Choice	0.67 of 0.67 point(s)
	Which of the following never goes in retrograde motion?
	Your Answer: the Sun Correct Answer: the Sun

Question 9	Multiple Choice	0 of 0.67 point(s)
	What are the equinoxes?
	Your Answer: none of the above Correct Answer: all of the above Feedback: this is true, but so are the other choices... this is true, but so are the other choices... this is true, but so are the other choices... actualy, a,b,and c are true! this is true, but so are the other choices...

Question 10	Multiple Choice	0 of 1 point(s)
	Which of the following was NOT an observation made by Galileo (that threatened the geocentric system of Aristotle and Ptolemy adopted by the Church)?
	Your Answer: Moons orbiting Jupiter, suggesting that Earth is not the only center of revolution. Correct Answer: Parallax of some stars, suggesting that Earth orbits Sun. Feedback: Incorrect. Galileo observed the changing phases of Venus, something not predicted by the geocentric model which placed Venus so that it was always between Earth and Sun. Galileo observed four dots orbiting Jupiter. He interpreted them as moons, which meant that Earth was not unique in being the center of revolution. Galileo observed sunspots on Sun, raising the suspicion that Sun was not perfect afterall. The telescopes available to Galileo were not sensitive enough to detect the parallax of even the nearest star beyond Sun. He would no doubt have been more convincing in his arguments to the Church had he been able to detect parallax.

Question 11	Multiple Choice	0 of 0.67 point(s)
	Where was the Sun in Ptolemy's model of the universe?
	Your Answer: at the center Correct Answer: between the orbits of Venus and Mars

Question 12	Multiple Choice	0.67 of 0.67 point(s)
	All of the following statements are true. Which one explains the reason why there is not a solar eclipse at every new moon?
	Your Answer: The orbital plane of the Moon is tilted by about 5 to the ecliptic plane. Correct Answer: The orbital plane of the Moon is tilted by about 5 to the ecliptic plane.

Question 13	Multiple Choice	0.67 of 0.67 point(s)
	He developed a system for predicting planetary positions that remained in use for some 1,500 years.
	Your Answer: Ptolemy Correct Answer: Ptolemy

Question 14	Multiple Choice	0.67 of 0.67 point(s)
	How did the Ptolemaic model explain the apparent retrograde motion of the planets?
	Your Answer: It held that the planets moved along small circles that moved on larger circles around the earth. Correct Answer: It held that the planets moved along small circles that moved on larger circles around the earth.

Question 15	Multiple Choice	0 of 0.67 point(s)
	He was the first to prove that comets lie beyond the earth's atmosphere.
	Your Answer: Aristotle Correct Answer: Tycho Brahe

Question 16	Multiple Choice	1 of 1 point(s)
	For the choices below Select the choice that is INCORRECT: When Venus has the largest angular diameter as seen from Earth, it: (hint: What did Galileo observe? Don't forget--select the choice that is incorrect!)
	Your Answer: can be seen shining brightly at the zenith for most observers in the northern hemisphere Correct Answer: can be seen shining brightly at the zenith for most observers in the northern hemisphere Feedback: When Venus is closest to Earth, it is at new phase. the incorrect answer is choice (d) since Venus is never visible at the Zenith..it orbits too close to the sun (you would have to look in the daytime).

Question 17	Multiple Choice	0 of 0.67 point(s)
	The Jewish calendar is kept roughly synchronized with a solar calendar by
	Your Answer: having the first lunar month begin on the spring equinox. Correct Answer: adding a thirteenth lunar month to 7 out of every 19 years.

Question 18	Multiple Choice	0 of 0.67 point(s)
	Kepler's third law, p2 = a3, means that
	Your Answer: planets that are farther from the Sun move at slower average speeds than nearer planets. Correct Answer: All of the above are correct.

Question 19	Multiple Choice	0 of 0.57 point(s)
	What is meant by a scientific paradigm?
	Your Answer: a radical change in scientific thought Correct Answer: a generally well established scientific theory or set of theories

Question 20	Multiple Choice	0 of 0.67 point(s)
	The controversial book of this famous person, published in 1543 (the year of his death), suggested that the earth and other planets orbit the Sun.
	Your Answer: Galileo Correct Answer: Copernicus

Question 21	Multiple Choice	0 of 0.67 point(s)
	If part of the full moon passes through the earth's umbra, we will see a(n)
	Your Answer: penumbral lunar eclipse. Correct Answer: partial lunar eclipse.

Question 22	Multiple Choice	0 of 0.67 point(s)
	The Muslim fast of Ramadan occurs
	Your Answer: on the spring equinox. Correct Answer: during the ninth month of a 12-month lunar cycle.

Question 23	Multiple Choice	0 of 0.67 point(s)
	What happens during the apparent retrograde motion of a planet?
	Your Answer: The planet moves backward through the sky. Correct Answer: The planet appears to move eastward with respect to the stars over a period of many nights.

Question 24	Multiple Choice	0.67 of 0.67 point(s)
	Kepler's second law, which states that as a planet moves around its orbit it sweeps out equal areas in equal times, means that
	Your Answer: a planet travels faster when it is nearer to the Sun and slower when it is farther from the Sun. Correct Answer: a planet travels faster when it is nearer to the Sun and slower when it is farther from the Sun.

Question 25	Multiple Choice	0.67 of 0.67 point(s)
	We can't detect stellar parallax with naked-eye observations. Which of the following would make parallax easier to observe?
	Your Answer: increasing the size of the earth's orbit Correct Answer: increasing the size of the earth's orbit

Question 26	Multiple Choice	0.67 of 0.67 point(s)
	Which of the following was not observed by Galileo?
	Your Answer: stellar parallax Correct Answer: stellar parallax

Question 27	Multiple Choice	0 of 0.67 point(s)
	What conditions are required for a solar eclipse?
	Your Answer: The phase of the Moon must be new, and the Moon's orbital plane must lie in the ecliptic. Correct Answer: The phase of the Moon must be new, and the nodes of the Moon's orbit must be nearly aligned with the earth and the Sun.

Question 28	Multiple Choice	0.67 of 0.67 point(s)
	He discovered that Jupiter has moons.
	Your Answer: Galileo Correct Answer: Galileo

Question 29	Multiple Choice	0.67 of 0.67 point(s)
	Ptolemy was important in the history of astronomy because he
	Your Answer: developed a model of the solar system that made sufficiently accurate predictions of planetary positions to remain in use for many centuries. Correct Answer: developed a model of the solar system that made sufficiently accurate predictions of planetary positions to remain in use for many centuries.

Question 30	Multiple Choice	1 of 1 point(s)
	Which of the following is NOT true regarding Kepler's Laws of Planetary Motion?
	Your Answer: The Period of a Planet in Oribit about the sun depends on its Mass. Correct Answer: The Period of a Planet in Oribit about the sun depends on its Mass. Feedback: The second choice is the correct choice, since it is untrue and not one of Kepler's laws..the mass of a planet doesn't effect its orbital period...

Question 31	Multiple Choice	0 of 0.67 point(s)
	Why were ancient peoples unable to detect stellar parallax?
	Your Answer: They could not see distant stars. Correct Answer: They did not have the ability to measure very small angles.

Question 32	Multiple Choice	0 of 0.67 point(s)
	When we see Venus in its full phase, what phase would the earth be in as seen by a hypothetical Venetian?
	Your Answer: first quarter Correct Answer: full

Question 33	Multiple Choice	0 of 0.67 point(s)
	If the Moon is setting at 6 A.M., the phase of the Moon must be
	Your Answer: first quarter. Correct Answer: full.

Question 34	Multiple Choice	0 of 1 point(s)
	Tycho Brahe is important in the history of astronomy because he
	Your Answer: testified at the trial of Galileo, arguing that planets obey elliptical paths rather than circular paths. Correct Answer: provided the precise observational data used by Kepler to discover the true shapes of planetary orbits. Feedback: Incorrect. Brahe was not alive at the time of Galileo's trail and condemnation. Kepler is famous for having discovered planetary laws of motion. Brahe believed that the planets orbit around Sun, but that Sun orbits the stationary Earth. Brahe is known for the precision of his astronomical observations, whereas Kepler is known for his ability to use those observations to determine the shapes of planetary orbits.

Question 35	Multiple Choice	0.67 of 0.67 point(s)
	During a planet's period of apparent retrograde motion (as seen from Earth),
	Your Answer: for a few weeks or months, the planet moves westward relative to the stars, rather than the usual eastward relative to the stars. Correct Answer: for a few weeks or months, the planet moves westward relative to the stars, rather than the usual eastward relative to the stars.