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Quiz
Pluto Quiz
- 1) Pluto is named for the Roman
A) God of the Underworld.
B) tribal King who discovered it.
C) God of the Sea.
D) mythical half-man, half-horse beast.
- 2) Which of the following is most correct about Pluto?
A) It is always the ninth planet from the Sun.
B) It has rings.
C) The US Pluto Fast Flyby mission gives us most of the information we know about the planet today.
D) It is sometimes the ninth planet and sometimes the eighth planet from the Sun.
- 3) Why did Percival Lowell predict the existence of a planet beyond Uranus?
A) A star – Pluto – moved across the night sky unlike other stars.
B) Percival believed in an infinite number of planets in our solar system.
C) Its existence would explain the slight perturbations in the orbital motions of Uranus.
D) The star – Pluto – was brighter than the other stars in the night sky.
- 4) Who is credited with discovering Pluto?
A) Percival Lowell
B) NASA
C) Clyde William Tombaugh
D) Jonathon Randolph
- 5) Approximately what is Pluto’s axial tilt as measured in degrees?
A) 0
B) 43.2
C) 89.5
D) 122.5
- 6) The double planet term refers to Pluto and what other celestial body?
A) Uranus
B) Mercury
C) Charon
D) Io
- 7) The Hubble Space Telescope has imaged what percent of Pluto’s surface?
A) 85%
B) 50%
C) 40%
D) 20%
- 8) Which of the following statements is true about Charon?
A) It is very similar to Pluto in composition and structure.
B) It is exactly one-half the size (in volume) of Pluto.
C) It appears bluer than Pluto.
D) It is denser than Pluto.
- 9) Charon’s rotation is
A) shorter than that of Pluto.
B) longer than that of Pluto.
C) constantly changing.
D) synchronous with that of Pluto.
- 10) What is the current name given to the first future space mission planned to launch in the twenty-first century?
A) Pluto Fast Flyby
B) Pluto-Whitman Express
C) Pluto-Kuiper Express
D) Pluto Surveyor