unit 4
What was Eris's original name? a) Haumea b) Gabriella c) Ceres d) Xena
d
Who determined that Uranus was a planet? a) Kupier b) Galileo c) King George III d) Herschel
d
All of the planets have at least one moon that is larger than Pluto's. True False
false
Neptune is smaller than the gas giants and Earth. True False
false
Only the planets Uranus and Jupiter have retrograde rotation. True False
false
Uranus's moons, combined, are less massive than Triton—one of Neptune's moons. True False
true
How did astronomers' understanding of planets shift by the 16th century? a) Previously, planets were thought to rotate around Earth, and then astronomers realized planets actually orbited around the Sun. b) Previously, planets were thought to orbit the Sun with their moons, and then astronomers realized moons orbited planets, not the Sun. c) Previously, planets were thought to orbit in elliptical shapes only, and then astronomers realized they could also orbit circularly. d) Previously, planets were thought to orbit black holes, and then astronomers realized that planets orbit their moons.
a
The first planet to be discovered using mathematical prediction was: a) Neptune. b) Uranus. c) Jupiter. d) Saturn.
a
Voyager 2 was able to capture proof of the intensity of storms that occur on Neptune. These are known to be ______ times as strong as those on Earth. a) nine b) six c) three d) two
a
Which event happened at the same time that Pluto was reclassified as a dwarf planet? a) The "Great Dark Spot" disappeared. b) Eris was classified as a dwarf planet as well. c) Ceres was discovered. d) Voyager-2 reached Neptune.
b
Scientists have discovered an object located in the region of space beyond Neptune that is similar to the asteroid belt. It seems to be relatively round and orbit the sun, but they are not yet sure if it can be classified as a planet. Where in space was this object found? a) the troposphere b) Neptune's rings c) the Kuiper belt d) the "Great Dark Spot"
c
Uranus takes 84 Earth years to complete an orbit around the Sun. What effect does this produce? a) It makes the planet's seasons extremely short. b) It does not affect the planet. c) It makes the planet very cold. d) It makes the planet very warm.
c
What does Triton's orbit suggest about its past? a) It was actually much hotter in temperature in the past, and its temperature shift altered its orbit. b) It used to be a planet that became a moon when it collided with an asteroid. c) It may have been an independent body that was somehow pulled into Neptune's orbit. d) It used to orbit in an elliptical shape and likely transitioned to a circular orbit after the "Great Dark Spot" disappeared.
c
What is unique about Ceres? a) It is the coldest known planet or dwarf planet. b) It has moons and rings. c) It is known to have water. d) It was a comet that formed into a dwarf planet.
c
Neptune's moon Triton is larger than the dwarf planets Pluto and Eris. True False
true
