Astronomy 1010 Exam 3 Review Questions
With Correct Answers
Pluto used to be one of the official planets in the Solar System but not
any more. Why is Pluto no longer called a by Astronomers? - CORRECT
ANSWER✔✔-Because it is a part of a belt of objects
When compared to the rotation of the Sun, what best describes the
orbits of the planets in the solar system? - CORRECT ANSWER✔✔-
They're all prograde. (The all orbit the sun
When compared to the rotation of the Sun, what best describes the
rotations of the of the planets in the Solar System? - CORRECT
ANSWER✔✔-Most orbits are prograde but some are retrograde.
When compared too the rotation of the Sun, what best describes the
orbits of the moons in the Solar System ? - CORRECT ANSWER✔✔-Most
orbits are prograde, but some are retrograde
Protostar - CORRECT ANSWER✔✔-A young stellar object that derives its
luminosity from the conversion of gravitational energy to thermal
energy, rather than from nuclear reactions in its core.
, Accretion Disk - CORRECT ANSWER✔✔-A flat rotating disk of gas and
dust surrounding an object, such as a young stellar object, a forming
planet, a collapsed star in a binary system, or a black hole.
Planetesimals - CORRECT ANSWER✔✔-A primitive body of rock and ice,
100 meters or more in diameter, that combines with others to form a
planet.
Refractory Materials - CORRECT ANSWER✔✔-Materials that remain
solid at high temperatures
Volatile Materials - CORRECT ANSWER✔✔-Sometimes called ice;
Material that remains gaseous at moderate temperature.
Organic Compounds - CORRECT ANSWER✔✔-Compounds that contain
carbon
Planet Migration - CORRECT ANSWER✔✔-The theory that a planet can
move to a location away from where it was formed, through
gravitational interactions with other bodies or loss of orbital energy
from interaction with gas in the protoplanetary disk
With Correct Answers
Pluto used to be one of the official planets in the Solar System but not
any more. Why is Pluto no longer called a by Astronomers? - CORRECT
ANSWER✔✔-Because it is a part of a belt of objects
When compared to the rotation of the Sun, what best describes the
orbits of the planets in the solar system? - CORRECT ANSWER✔✔-
They're all prograde. (The all orbit the sun
When compared to the rotation of the Sun, what best describes the
rotations of the of the planets in the Solar System? - CORRECT
ANSWER✔✔-Most orbits are prograde but some are retrograde.
When compared too the rotation of the Sun, what best describes the
orbits of the moons in the Solar System ? - CORRECT ANSWER✔✔-Most
orbits are prograde, but some are retrograde
Protostar - CORRECT ANSWER✔✔-A young stellar object that derives its
luminosity from the conversion of gravitational energy to thermal
energy, rather than from nuclear reactions in its core.
, Accretion Disk - CORRECT ANSWER✔✔-A flat rotating disk of gas and
dust surrounding an object, such as a young stellar object, a forming
planet, a collapsed star in a binary system, or a black hole.
Planetesimals - CORRECT ANSWER✔✔-A primitive body of rock and ice,
100 meters or more in diameter, that combines with others to form a
planet.
Refractory Materials - CORRECT ANSWER✔✔-Materials that remain
solid at high temperatures
Volatile Materials - CORRECT ANSWER✔✔-Sometimes called ice;
Material that remains gaseous at moderate temperature.
Organic Compounds - CORRECT ANSWER✔✔-Compounds that contain
carbon
Planet Migration - CORRECT ANSWER✔✔-The theory that a planet can
move to a location away from where it was formed, through
gravitational interactions with other bodies or loss of orbital energy
from interaction with gas in the protoplanetary disk
