2 Question 1How many degrees above the horizon is the Sun at noon on the summer solstice for an observer standing in the Tropic of Cancer?A. 0Â° (at horizon)B. 66.5Â°C. 23.5Â°D. 90Â° (directly overhead)E. 43Â°
3 Question 2If the Moon were at first quarter two weeks ago, what would be its phase today?A. newB. fullC. third (last) quarterD. waxing crescentE. waning gibbous
4 Question 3What is the ecliptic?A. When the Moon passes in the front of the Sun.B. The Moon's apparent path about the north celestrial pole.C. The Sun's apparent path along the celestial sphere each year.D. The set of constellations commonly used in astrology to predict the future.E. When the Earth's shadow passes in front of the Moon.
5 Question 4Why do we see essentially the same face of the Moon at all times?A. because the face points towards us only at a new phase, when it is not visibleB. because the Moon does not rotateC. because the sun only illuminates one half at a timeD. because the Moon's rotational and orbital periods are equalE. because the Moon has nearly a circular orbit around the Earth
6 Question 5 The angular size of the Moon and Sun is about 0.5Â°. A. TrueB. False
7 Question 6 The waxing crescent occurs just after the new Moon. A. True B. False
8 Question 7 The 23.5Â° tilt of the spin axis causes seasons on Earth. A. TrueB. False
9 Question 8The vernal equinox occurs in the spring when the sun appears to cross the Earth's equator.A. TrueB. False
10 Question 9The apparent backward movement of the planets in the heavens is called retrograde motion.A. TrueB. False
11 Question 10 Which of the following is NOT a phase of the Moon? A. first quarterB. newC. halfD. fullE. third (last) quarter
12 Question 11If tonight at 10 p.m., the constellation Orion is visible and high in the sky, where will it be at 3 a.m. in the morning?A. further northB. further eastC. further westD. same location
13 Question 12If tonight at 10 p.m. Orion will be in a certain location in the sky, where will it be at 10 p.m. on this same date one year from now?A. further northB. further westC. further eastD. same location
14 Question 13 Stars, like planets, exhibit retrograde motion. A. True B. False
15 Question 14Suppose there is a star that rises at 10 p.m. tonight. At what time will it rise one month from now?A. 11 p.m.B. midnightC. 9 p.m.D. 8 p.m.
16 Question 15An observer in Sao Paulo, Brazil (altitude degrees) sees the Sun at the zenith at noon on which day(s)?A. winter solstice (in December)B. summer solstice (in June)C. spring and fall equinoxD. never - impossible
17 Question 16An observer at a latitude of 41 degrees sees the Sun at the zenith at noon on which day(s)?A. summer and winter solsticeB. spring and fall equinoxC. never - impossibleD. every dayE. every 28 days
18 Question 17Suppose the Moon rose at 6 p.m. yesterday. What are the approximate rising times and phase of the Moon today?A. 5 p.m. and newB. 5 p.m. and fullC. 7 p.m. and newD. 7 p.m. and full
19 Question 18If sunset is at 6:00 p.m., at what time does the waning quarter moon rise?A. noonB. never - impossibleC. midnightD. 3:00 a.m.E. 3:00 p.m.
20 Question 19Which of the following coordinates describes the angular distance of an object north or south of the celestial equator?AzimuthAltituderight ascensiondeclination
21 Question 20An observer in Quito, Ecuador (latitude 0o) sees the Sun at the zenith at noon on which day(s)?summer and winter solsticespring and fall equinoxnever - impossibleall daysonly on June 21
22 Question 21The sun moves eastward among the stars at the rate of about one degree perhourmonthyeardayminute
23 Question 22 The time that your wristwatch keeps is apparent solar time mean solar timesidereal timeGreenwich mean timea hot time
24 Question 23 The occurrence of seasons on the Earth is due to the Earth being closer to the Sun in summerthe Earth changing its rotation rate during the yearthe Earth's axis pointing in different directions during the yearthe Earth's axis being inclined to the eclipticthe solar wind particles in the Earth's upper atmosphere
25 Question 24 At approximately what time does the new moon rise? sunset sunrisenoonmidnight
26 Question 25 Relative to the stars, the moon remains stationary moves eastward, then westward during a monthmoves westwardmoves eastward
27 Question 26In which of the following circumstances is it possible to observe the full moon?setting at noonrising at sunsethigh in the sky at dawnsetting at midnight
28 Question 27Which of the following is true of the motion of the planet Mars among the stars?all retrograde loops occur in the same constellationall retrograde loops have the same shaperetrograde loops always are separated by the same interval of timeretrograde loops occur when Mars is in conjunction (near the sun in the sky
29 Question 28Use Figure 2.18 to find the time in Mexico City, Mexico, when it is 5 P.M. in Washington, D.C. Ignore any complications that might be caused by daylight savings time.
30 Question 29An observer, working at the time of the summer solstice, notes that the Sun circles about the sky at a constant altitude (23.5°). The observations are interrupted by a bear. What color is the bear?
31 D 2. C 3. C 4. DA 6. A 7. A 8. AA 10. C 11. C 12. D13. B 14. D 15. B 16. C17. D 18. B