Astronomy Mid Term Chapter 2 Quiz

11) What is a circumpolar star?

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C) because the Moon's rotational and orbital periods are equal
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C) It appears very near the north celestial pole.
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C) a star that always remains above your horizon
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A) As Earth goes around the Sun and Earth's axis remains pointed toward Polaris, the Northern

9) How many arcseconds are in 1°?

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C) 3,600
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C) noon
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C) full.
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B) a few thousand

15) You are standing on Earth's equator. Which way is Polaris, the North star?

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C) the location of Earth in its orbit.
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B) on the northern horizon
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C) The Earth casts a bigger shadow than the Moon.
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C) partial lunar eclipse.

41) If part of the full Moon passes through Earth's umbra, we will see a(n)

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C) third quarter.
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B) on the northern horizon
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C) partial lunar eclipse.
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D) latitude and longitude.

32) Why do we see essentially the same face of the Moon at all times?

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E) The closer a star is to us, the more parallax it exhibits.
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C) The Moon's distance from Earth varies during its orbit.
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A) As Earth goes around the Sun and Earth's axis remains pointed toward Polaris, the Northern
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C) because the Moon's rotational and orbital periods are equal

37) What effect or effects would be most significant if the Moon's orbital plane were exactly thesame as the ecliptic plane?

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B) Solar eclipses would be much more frequent.
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C) It appears very near the north celestial pole.
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C) No, because the stars, gas, and dust of the Milky Way block us from seeing them.
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B) They always remain above your horizon.

18) Why do we have seasons on Earth?

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D) As Earth passes another planet, the other planet appears to move backward with respect to thebackground stars, but the planet's motion does not really change
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C) The Northern Hemisphere is tilted toward the Sun and receives more direct sunlight.
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C) because the Moon's rotational and orbital periods are equal
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A) As Earth goes around the Sun and Earth's axis remains pointed toward Polaris, the Northern

34) Suppose you live on the Moon. How long is a day (i.e., from sunrise to sunrise)?

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C) half Moon
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C) a lunar month
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B) on the northern horizon
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B) a few thousand

6) When we look into the band of light in our sky that we call the Milky Way, can we see distantgalaxies? Why or why not?

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C) No, because the stars, gas, and dust of the Milky Way block us from seeing them.
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C) because the Moon's rotational and orbital periods are equal
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B) It represents an extension of Earth's equator onto the celestial sphere.
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C) The Northern Hemisphere is tilted toward the Sun and receives more direct sunlight.

14) What makes the North Star, Polaris, special?

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C) The Moon's distance from Earth varies during its orbit.
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C) a star that always remains above your horizon
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C) The Earth casts a bigger shadow than the Moon.
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C) It appears very near the north celestial pole.

36) All of the following statements are true. Which one explains the reason why there is not asolar eclipse at every new Moon?

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C) The angular distance between those two bright stars in the sky is about 2 meters.
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A) The altitude of the NCP is the same as your latitude.
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D) The "celestial sphere" is just another name for our universe.
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B) The orbital plane of the Moon is tilted by about 5° to the ecliptic plane.

If the Moon is relatively far from Earth, so that the umbra does not reach Earth, someonedirectly behind the umbra will see

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D) third-quarter Earth phase.
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D) an annular eclipse.
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C) third quarter.
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C) The angular distance between those two bright stars in the sky is about 2 meters.

20) Which of the following statements is true?

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C) The Moon's distance from Earth varies during its orbit.
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E) Both A and C are true.
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B) They always remain above your horizon.
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C) half Moon

1) How many stars can you see with your naked eye on a clear, moonless night from a darklocation?

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D) an annular eclipse.
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C) third quarter.
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B) on the northern horizon
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B) a few thousand

33) Which of the following statements about the Moon is true?

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D) It is possible to have two full Moons during January, but not during February.
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E) The closer a star is to us, the more parallax it exhibits.
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C) The Moon's distance from Earth varies during its orbit.
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B) They always remain above your horizon.

29) At approximately what time would a first quarter Moon rise?

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C) half Moon
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E) midnight
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C) noon
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C) 3,600

45) What is the Saros cycle?

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C) The angular distance between those two bright stars in the sky is about 2 meters.
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C) a star that always remains above your horizon
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B) the 18-year cycle over which the pattern of eclipses repeats
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E) the Sun's apparent path along the celestial sphere

13) We describe a position on Earth's surface by stating its

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C) partial lunar eclipse.
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D) waning crescent.
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D) latitude and longitude.
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E) Both A and C are true.

44) The precession of the Moon's nodes means that

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C) the eclipse seasons occur less than 6 months apart.
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B) The planet appears to move westward with respect to the stars over a period of many nights.
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E) The closer a star is to us, the more parallax it exhibits.
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C) when the nodes of the Moon's orbit are nearly aligned with the Sun

23) Which of the following is not a phase of the Moon?

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A) the Sun
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C) half Moon
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E) Both A and C are true.
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C) The Moon's distance from Earth varies during its orbit.

26) If the Moon is setting at noon, the phase of the Moon must be

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C) The Earth casts a bigger shadow than the Moon.
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E) midnight
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C) third quarter.
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D) third-quarter Earth phase.

16) By locating the north celestial pole (NCP) in the sky, how can you determine your latitude?

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B) The orbital plane of the Moon is tilted by about 5° to the ecliptic plane.
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C) The angular distance between those two bright stars in the sky is about 2 meters.
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B) They always remain above your horizon.
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A) The altitude of the NCP is the same as your latitude.

51) Which of the following statements about parallax is not true?

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D) The technique of stellar parallax was used by Hubble to determine that the AndromedaGalaxy (M 31) is about 2 million light-years away
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D) It is possible to have two full Moons during January, but not during February.
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E) The closer a star is to us, the more parallax it exhibits.
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D) The "celestial sphere" is just another name for our universe.

46) Ancient people who knew the Saros cycle could

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C) the eclipse seasons occur less than 6 months apart.
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A) sunlight reflected by Earth that illuminates the "dark" portion of the Moon.
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E) predict when an eclipse would happen, but not necessarily what type and where it would be
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B) The planet appears to move westward with respect to the stars over a period of many nights.

25) If the Moon is setting at 6 A.M., the phase of the Moon must be

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C) third quarter.
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C) east
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C) full.
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C) noon

2) Which of the following best describes the modern definition of a constellation?

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D) The "celestial sphere" is just another name for our universe.
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A) a region of the celestial sphere
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B) They always remain above your horizon.
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B) It represents an extension of Earth's equator onto the celestial sphere.

50) Which of the following never goes in retrograde motion?

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C) The Moon's distance from Earth varies during its orbit.
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D) The technique of stellar parallax was used by Hubble to determine that the AndromedaGalaxy (M 31) is about 2 million light-years away
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A) the Sun
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C) half Moon

8) If it is midnight in New York, it is

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A) a region of the celestial sphere
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C) partial lunar eclipse.
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D) latitude and longitude.
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A) daytime in Sydney, Australia.

10) Which of the following statements does not use the term angular size or angular distancecorrectly?

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B) They always remain above your horizon.
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C) The Northern Hemisphere is tilted toward the Sun and receives more direct sunlight.
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C) The angular distance between those two bright stars in the sky is about 2 meters.
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E) The closer a star is to us, the more parallax it exhibits.

49) What causes the apparent retrograde motion of the planets?

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A) As Earth goes around the Sun and Earth's axis remains pointed toward Polaris, the Northern
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C) The Earth casts a bigger shadow than the Moon.
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A) The phase of the Moon must be new, and the nodes of the Moon's orbit must be nearlyaligned with Earth and the Sun.
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D) As Earth passes another planet, the other planet appears to move backward with respect to thebackground stars, but the planet's motion does not really change

12) Which of the following statements about circumpolar stars is true at all latitudes?

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E) The closer a star is to us, the more parallax it exhibits.
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B) They always remain above your horizon.
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C) The Moon's distance from Earth varies during its orbit.
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A) a region of the celestial sphere

27) If the Moon is rising at midnight, the phase of the Moon must be

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C) full.
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C) partial lunar eclipse.
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C) The Earth casts a bigger shadow than the Moon.
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C) third quarter.

31) In which direction does a quarter Moon rise?

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C) half Moon
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C) full.
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C) third quarter.
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C) east

7) Which of the following correctly describes the meridian in your sky?

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D) The "celestial sphere" is just another name for our universe.
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B) a half-circle extending from your horizon due north, through your zenith, to your horizon due south
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D) The technique of stellar parallax was used by Hubble to determine that the AndromedaGalaxy (M 31) is about 2 million light-years away
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E) Most constellations will be unrecognizable hundreds of years from now.

24) When someone on Earth observes the Moon in the first-quarter phase, someone on the Moonfacing Earth observes Earth in the

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C) third quarter.
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D) third-quarter Earth phase.
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C) No, because the stars, gas, and dust of the Milky Way block us from seeing them.
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C) The angular distance between those two bright stars in the sky is about 2 meters.

5) What is the ecliptic?

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E) The closer a star is to us, the more parallax it exhibits.
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C) a star that always remains above your horizon
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C) The Moon's distance from Earth varies during its orbit.
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E) the Sun's apparent path along the celestial sphere

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