chapter_01_Question_Week_02.pdf

PRACTICE QUESTIONS: WEEK 2 Astronomy Today, 9e (Chaisson/McMillan) Chapter 1 Charting the Heavens: The Foundations of Astronomy True/False Questions 1) It was Aristotle who used the scientific method to show the Earth was a sphere. Section Ref: 1.2 2) Scientific theories are proven by use of the scientific method. Section Ref: 1.2 3) An accepted scientific theory could still be proven wrong. Section Ref: 1.2 4) Constellations are close clusters of stars, all at about the same distance from the Sun. Section Ref: 1.3 5) From the South Pole, Polaris would appear directly overhead. Section Ref: 1.3 6) From the North Pole, Polaris would appear directly overhead. Section Ref: 1.3 7) Only at the equator are all the stars visible over the course of the year. Section Ref: 1.3 8) Over the course of a night, Polaris moves less than any other visible star in the sky. Section Ref: 1.3 9) There are 3,600 arc seconds in a degree. Section Ref: 1.4 10) At apogee, the Moon is at its farthest from Earth and thus appears smaller than normal. Because of this it can produce only annular solar eclipses, but not total solar eclipses. Section Ref: 1.5 11) If a star rises about 9 PM tonight, and with the sidereal day being four minutes less than the solar one, then in a month it will rise about 7 PM. Section Ref: 1.5 12) From Earth, the Sun and Moon have about the same angular diameter. Section Ref: 1.5 13) The full Moon rises around sunrise, and sets around sunset. Section Ref: 1.5

14) From full Moon to third quarter Moon takes about a week. Section Ref: 1.5 15) The first quarter Moon will rise about noon, and set about midnight. Section Ref: 1.5 16) As it orbits the Earth, the Moon appears to move eastward about its own diameter every hour. Section Ref: 1.5 Multiple Choice Questions 1) Modern scientific theories are NOT: A) testable. B) continuously tested. C) simple. D) perfect. E) elegant. Section Ref: 1.2 2) An effective theory must: A) have been proven. B) must have been around for centuries or longer. C) be continuously tested. D) include mathematical formulae. Section Ref: 1.2 3) Aristotle's hypothesis was that: A) lunar eclipses were created by our shadow. B) only a spherical Earth would always cast a circular shadow on the Moon. C) lunar eclipses would have to happen every full Moon. D) the Sun lay at the center of the planet orbits. E) the Moon orbited the Earth. Section Ref: 1.2 4) Testing is important to developing: A) an idea. B) a hypothesis. C) a theory. D) myths. Section Ref: 1.2

5) Into how many constellations is the celestial sphere divided? A) 12 B) 44 C) 57 D) 88 E) 110 Section Ref: 1.3 6) What are constellations? A) groups of galaxies gravitationally bound and close together in the sky B) groups of stars making an apparent pattern in the celestial sphere C) groups of stars gravitationally bound and appearing close together in the sky D) ancient story boards, useless to modern astronomers E) apparent groupings of stars and planets visible on a given evening Section Ref: 1.3 7) Where on Earth would you be if Polaris were at your zenith? A) North Pole B) Arctic Circle C) Tropic of Cancer D) Equator E) It lies overhead everywhere on Earth. Section Ref: 1.3 8) Where on Earth can you observe all the stars in the sky over an entire year? A) North Pole B) Arctic Circle C) Tropic of Cancer D) Equator E) Everyone on Earth can see the whole sky. Section Ref: 1.3 9) Why did early civilizations observe constellations? A) only for religious reasons B) for practical reasons, such as navigation and helping to determine seasons C) only for recreational reasons D) only to predict a person's destiny Section Ref: 1.3 10) The stars appear to be attached to a sphere that surrounds the Earth and rotates above, causing the apparent rising and setting of the stars. This is called the: A) cosmos. B) universe. C) Sun. D) celestial sphere. E) constellations. Section Ref: 1.3

11) While watching a star, you see it moves 15 degrees across the sky. How long have you been watching it? A) 1 hour B) 3 hours C) 15 minutes D) 15 seconds E) 1 minute Section Ref: 1.4

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