Astronomy college course/Pluto and planetary mass quiz
AstroPluto and planetary mass_Study
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AstroPluto and planetary mass_Study-v1s1
1. Which of the following is NOT used to measure the mass of a planet
- ___ a) the motion of a neighboring planet
- ___ b) all of these have been used
- ___ c) the rotation of the planet about its axis
- ___ d) the motion of an artificial satellite
- ___ e) the motion of a moon
2. What is unusual about calculations of the mass of Pluto made in the early part of the 20th century?
- ___ a) It was the first time a planet's period of orbit around the sun was used to calculate the planet's mass
- ___ b) It was the first time a moon was used to calculate the mass of a planet
- ___ c) The estimates were too low. Pluto was actually more massive than they thought.
- ___ d) The estimates were high. Pluto was less massive than they calculated
- ___ e) The estimates were correct to within less than 10%
3. Why was the discovery of Pluto peculiar?
- ___ a) It was the first time a planet's period of orbit around the sun was used to calculate the planet's mass
- ___ b) It was seen by Galileo, who thought it was a star
- ___ c) It was seen by Halley, who was looking for comets
- ___ d) It was discovered by a calculation based on flawed assumptions
- ___ e) It was discovered during a survey looking for stars
4. Which of the following is NOT used to measure the mass of a planet
- ___ a) the motion of a neighboring planet
- ___ b) the motion of an artificial satellite
- ___ c) the motion of a moon
- ___ d) all of these have been used
5. Which statement describes the relation between Pluto and Neptune
- ___ a) Pluto's orbit intersects Neptune's orbit an the two bodies will eventually collide
- ___ b) Pluto's orbit intersects Neptune's orbit but they avoid each other because Pluto's mass is too small
- ___ c) Pluto's orbit intersects Neptune's orbit but they don't collide because of an orbital resonance between the two
- ___ d) Pluto's orbit lies outside Neptune's orbit
Key to AstroPluto and planetary mass_Study-v1s1
1. Which of the following is NOT used to measure the mass of a planet
- - a) the motion of a neighboring planet
- - b) all of these have been used
- + c) the rotation of the planet about its axis
- - d) the motion of an artificial satellite
- - e) the motion of a moon
2. What is unusual about calculations of the mass of Pluto made in the early part of the 20th century?
- - a) It was the first time a planet's period of orbit around the sun was used to calculate the planet's mass
- - b) It was the first time a moon was used to calculate the mass of a planet
- - c) The estimates were too low. Pluto was actually more massive than they thought.
- + d) The estimates were high. Pluto was less massive than they calculated
- - e) The estimates were correct to within less than 10%
3. Why was the discovery of Pluto peculiar?
- - a) It was the first time a planet's period of orbit around the sun was used to calculate the planet's mass
- - b) It was seen by Galileo, who thought it was a star
- - c) It was seen by Halley, who was looking for comets
- + d) It was discovered by a calculation based on flawed assumptions
- - e) It was discovered during a survey looking for stars
4. Which of the following is NOT used to measure the mass of a planet
- - a) the motion of a neighboring planet
- - b) the motion of an artificial satellite
- - c) the motion of a moon
- + d) all of these have been used
5. Which statement describes the relation between Pluto and Neptune
- - a) Pluto's orbit intersects Neptune's orbit an the two bodies will eventually collide
- - b) Pluto's orbit intersects Neptune's orbit but they avoid each other because Pluto's mass is too small
- + c) Pluto's orbit intersects Neptune's orbit but they don't collide because of an orbital resonance between the two
- - d) Pluto's orbit lies outside Neptune's orbit
- Attribution (for quiz questions) under CC-by-SA license
- http://en.wikiversity.org/w/index.php?title=Astronomy_college_course/Pluto_and_planetary_mass_quiz&oldid=1388652
- Study guide
- http://en.wikipedia.org/w/index.php?title=Pluto&oldid=664428172