Ast 205 [Princeton University] -- For
Midterm Exam With All Answers
Earth (12,756 km), Solar System (9 billion km), solar neighborhood, Milky Way galaxy, local group, local
supercluster, sheets and voids, farthest visible reaches of space-CORRECT ANSWERS✔✔our place in the
universe
same as planet but hasn't cleared neighborhood around orbit and is not a satellite-CORRECT ANSWERS
✔✔dwarf planet
celestial body orbiting Sun, sufficient mass for self-gravity to overcome forces so that it becomes round,
has cleared neighborhood around orbit-CORRECT ANSWERS✔✔planet
all other objects except satellites orbiting Sun-CORRECT ANSWERS✔✔small solar system bodies
orbits planets and dwarf planets-CORRECT ANSWERS✔✔satellite
same direction, nearly same plane, almost circular, most moons orbit same way, most planets rotate
same way, Sun rotates same direction-CORRECT ANSWERS✔✔planetary orbits
over 99.8% of SS mass, mostly H/He gas, 108Er and 333000Em, 4% of SS angular momentum-CORRECT
ANSWERS✔✔Sun
measures object's resistance to acceleration; equivalent to gravitational mass-CORRECT ANSWERS✔✔
inertial mass
, measures magnitude of gravitational force on or by object; equivalent to inertial mass-CORRECT
ANSWERS✔✔gravitational mass
gravitational force acting on given body-CORRECT ANSWERS✔✔weight
quantity of 3D space enclosed by a boundary (m^3)-CORRECT ANSWERS✔✔volume
metal and rock large iron core, 0.4Er 0.05 Em, desolate cratered long cliffs, very hot and cold, no moons,
3:2 resonance-CORRECT ANSWERS✔✔Mercury
ratio orbit (year) to spin (day)-CORRECT ANSWERS✔✔resonance
close Earth size, extreme greenhouse effect, spins opposite to rotation, high surface pressure, volcanoes
but not tectonics, no moon-CORRECT ANSWERS✔✔Venus
only liquid surface water in SS, surprisingly large moon, moderate greenhouse effect, LIFE YEAH BABY-
CORRECT ANSWERS✔✔Earth
giant volcanoes canyon and ice caps, water flowed in past, 0.5 Er 0.1 Em-CORRECT ANSWERS✔✔Mars
mostly H/He, 11 Er 318 Em, 63+ moons faint rings, Great Red Spot, the 4 Galilean moons-CORRECT
ANSWERS✔✔Jupiter
Io (active volcanoes), Europa (possible subsurface ocean), Ganymede (largest SS moon), Callisto
(cratered ice ball)-CORRECT ANSWERS✔✔Galilean Moons of Jupiter
Midterm Exam With All Answers
Earth (12,756 km), Solar System (9 billion km), solar neighborhood, Milky Way galaxy, local group, local
supercluster, sheets and voids, farthest visible reaches of space-CORRECT ANSWERS✔✔our place in the
universe
same as planet but hasn't cleared neighborhood around orbit and is not a satellite-CORRECT ANSWERS
✔✔dwarf planet
celestial body orbiting Sun, sufficient mass for self-gravity to overcome forces so that it becomes round,
has cleared neighborhood around orbit-CORRECT ANSWERS✔✔planet
all other objects except satellites orbiting Sun-CORRECT ANSWERS✔✔small solar system bodies
orbits planets and dwarf planets-CORRECT ANSWERS✔✔satellite
same direction, nearly same plane, almost circular, most moons orbit same way, most planets rotate
same way, Sun rotates same direction-CORRECT ANSWERS✔✔planetary orbits
over 99.8% of SS mass, mostly H/He gas, 108Er and 333000Em, 4% of SS angular momentum-CORRECT
ANSWERS✔✔Sun
measures object's resistance to acceleration; equivalent to gravitational mass-CORRECT ANSWERS✔✔
inertial mass
, measures magnitude of gravitational force on or by object; equivalent to inertial mass-CORRECT
ANSWERS✔✔gravitational mass
gravitational force acting on given body-CORRECT ANSWERS✔✔weight
quantity of 3D space enclosed by a boundary (m^3)-CORRECT ANSWERS✔✔volume
metal and rock large iron core, 0.4Er 0.05 Em, desolate cratered long cliffs, very hot and cold, no moons,
3:2 resonance-CORRECT ANSWERS✔✔Mercury
ratio orbit (year) to spin (day)-CORRECT ANSWERS✔✔resonance
close Earth size, extreme greenhouse effect, spins opposite to rotation, high surface pressure, volcanoes
but not tectonics, no moon-CORRECT ANSWERS✔✔Venus
only liquid surface water in SS, surprisingly large moon, moderate greenhouse effect, LIFE YEAH BABY-
CORRECT ANSWERS✔✔Earth
giant volcanoes canyon and ice caps, water flowed in past, 0.5 Er 0.1 Em-CORRECT ANSWERS✔✔Mars
mostly H/He, 11 Er 318 Em, 63+ moons faint rings, Great Red Spot, the 4 Galilean moons-CORRECT
ANSWERS✔✔Jupiter
Io (active volcanoes), Europa (possible subsurface ocean), Ganymede (largest SS moon), Callisto
(cratered ice ball)-CORRECT ANSWERS✔✔Galilean Moons of Jupiter
