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Astronomy 50
Contributed by: Trieu
(Original author: Collins)
  • 1. True of False The Sun is the largest star in our galaxy
A) False
B) True
  • 2. True or False The sun has more gravity than all the other bodies in our solar system
A) False
B) True
  • 3. Which planet is largest?
A) Saturn
B) Uranus
C) Mercury
D) Jupiter
  • 4. Name the order of the planets
A) Mercury, Venus, Earth, Mars, Saturn, Jupiter, Neptune, Uranus
B) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune
C) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus
D) Mercury, Venus, Earth, Mars, Saturn, Jupiter, Uranus, Neptune
  • 5. Who is the father of Astronomy?
A) Galileo
B) Hubble
C) Copernicus
D) Armstrong
  • 6. What is the name of the telescope which orbits Earth?
A) Hubble
B) International Space Station
C) Armstrong
D) Galileo Probe
  • 7. Which planets are considered terrestrial
A) gas planets
B) outer planets
C) planets with rings
D) inner planets
  • 8. What causes day and night on Earth?
A) its rotation
B) it tilted axis
C) its orbit around the sun
D) its revolution
  • 9. What causes the phases of the moon
A) The earth's orbit
B) The moon's orbit
C) The sun's gravity
D) The earth's rotation
  • 10. How long does it take for the moon to complete all of its phases?
A) 1 year
B) 1 week
C) 29 days
D) 2 weeks
  • 11. What determines length of year on a planet
A) the planet's size
B) its axis
C) revolution
D) rotation
  • 12. Who was the first person on the moon?
A) Buzz Aldren
B) Neil Armstrong
C) Alan Shepard
D) John Glenn
  • 13. Which measurement is the largest distance
A) Light-year
B) light-minute
C) 1 trillion miles
D) AU
  • 14. What causes a lunar eclipse?
A) The moon passes through it's own shadow.
B) The earth passes through the sun's shadow.
C) The earth passes through the moon's shadow.
D) The moon passes through the earth's shadow.
  • 15. What causes a solar eclipse?
A) The earth passes through the sun's shadow.
B) The earth passes through the moon's shadow.
C) The sun passes through the earth's shadow.
D) The moon passes through the earth's shadow.
  • 16. What is the name of our galaxy?
A) The Big Bang
B) One way
C) Milky Way
D) Andromeda
  • 17. What type of galaxy is ours?
A) Barred Spiral
B) Elliptical
C) Regular
D) Irregular
  • 18. What is the birthplace of stars
A) asteroid belt
B) constellation
C) Nebula
D) Maine Medical Center
  • 19. The Big Bang Theory explains.....
A) how long it will take to travel in space
B) the formation of the universe
C) how stars explode
D) how the sound travels through space
  • 20. The gravity of a body in space depends on its
A) moons
B) mass
C) atmosphere
D) size
  • 21. How far away is the sun from the earth?
A) 1 light year
B) 93 million miles
C) 93 thousand miles
D) 93 billion miles
  • 22. What causes the aurora borealis?
A) fireworks
B) the moon
C) solar wind
D) sunset
  • 23. Which planet has the shortest year?
A) Moon
B) Mars
C) Mercury
D) Earth
  • 24. Between which two planets are most of the asteroids located?
A) Jupiter and Saturn
B) Saturn and Uranus
C) Mars and Jupiter
D) Uranus and Neptune
  • 25. Which planet is farthest from earth?
A) uranus
B) Neptune
C) Mars
D) jupiter
  • 26. Why is Earth unique in the solar system?
A) It is the last inner planet
B) It has a moon
C) It has life
D) It has volcanoes
  • 27. What causes the comet's tail?
A) the asteroids
B) the gravity of the sun
C) solar wind
D) astronomers aren't sure
  • 28. What is unusual about most comets orbits?
A) It is very elliptical
B) They travel in the opposite direction around the sun
C) They are perfectly circular
D) The don't orbit they hit the sun.
  • 29. A meteorite can be seen
A) on the earth's surface
B) streaking through the atmosphere
C) floating in space
D) Near Jupiter's rings
  • 30. A meteor can be seen
A) streaking through earth's atmosphere
B) all of these answers
C) floating in space
D) on earth's surface
  • 31. A comet's tail points away from the sun because of
A) it does not point away from the sun
B) sublimation
C) solar wind
D) sunlight
  • 32. Earth's only natural satellite is
A) Hubble Telescope
B) the sun
C) the inner planets
D) the moon
  • 33. What is the postion of the sun, moon and earth for a new moon?
A) earth, sun, moon
B) Sun, moon, earth
C) Sun, earth, moon
D) moon, earth, sun
  • 34. What is it called as the moon goes from new moon to full moon?
A) waxing
B) waning
C) gibbous
D) crescent
  • 35. What is it called as the moon goes from full to new?
A) crescent
B) waning
C) gibbous
D) waxing
  • 36. How many stars in our galaxy
A) millions
B) billions
C) one, the sun
D) infinite
  • 37. A huge exploding star is called a
A) astro nova
B) nebula
C) supernova
D) solar event
  • 38. A solar flare creates
A) all of these answers
B) huge amount of energy
C) an aurora on earth
D) solar wind
  • 39. On which if these would you weigh the least?
A) Mars
B) Earth
C) moon
D) Venus
  • 40. During what phase of the moon does a lunar eclipse take place?
A) 1st quarter
B) Last Quarter
C) Full
D) New
  • 41. During what moon phase does a solar eclipse take place?
A) 1st quarter
B) New
C) Last Quarter
D) Full
  • 42. Why doesn't each eclipse happen every month?
A) It depends on what time of year it is
B) The moon's orbit is does not line up perfectly with the Earth
C) It depends on the earth's orbit
D) They do occur once a month you just can't seem them from all places on the earth
  • 43. True or False The speed of light is 186,000 miles per second
A) False
B) True
  • 44. The DISTANCE light travels in one year is called a
A) light-year
B) light mile
C) 186,000 m/s
D) AU
  • 45. Scientist believe that the Earth and our solar system are about how old?
A) 13.7 million years
B) 4.5 billion years
C) 13.7 billion years
D) 4.5 million year
  • 46. What measurement is used for distances within our solar system
A) AU's
B) meters
C) light-seconds
D) light-years
  • 47. What is the name of the aurora in the southern hemisphere
A) Aurora Borealis
B) Aurora Australis
C) Holy Aurora
D) Aurora Antarctica
  • 48. Why doesn't a comet far away from the sun have a tail?
A) It turns into rock
B) It's too small
C) It's too cold
D) It's going too fast
  • 49. Astronomers think the universe is about...
A) 1 billion years old
B) 4 billion years old
C) 14 billion years old
D) 1 million years old
  • 50. Astronomers think the universe is
A) None of the answers are correct
B) standing still
C) shrinking
D) expanding
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