Astronomy college course/Pluto and planetary mass quiz

Astronomy college course

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


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 * 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