Chapter 23 Earth/Space Review
How many known satellites does Mars have?
2
A comet's tail always points ____.
Away from the sun
The atmosphere of Venus is composed primarily of _____.
Carbon Dioxide
The glowing head of a comet is known as ____.
Coma
Most meteor showers are associated with the orbits of _____.
Comets
Jupiter's Great Red Spot is believed to be a ____.
Cyclonic storm
The Jovian planets contain a large percentage of the gases ____ & ____.
Hydrogen & Helium
Which of Jupiter's moons is volcanically active?
Io
Why isn't Pluto considered a planet?
It has not completed a full orbital path.
What feat did the spacecraft NEAR Shoemaker accomplish?
It landed on an asteroid
Which planet has a greater mass than the combined mass of all the remaining planets and their moons?
Jupiter
Comets with short orbital periods are located in what region?
Kuiper belt
Olympus Mons, a volcano the size of Ohio, is found on _____.
Mars
Which planet shows evidence of water erosion?
Mars
Which planet, when viewed through a telescope, appears as a reddish ball interrupted by some permanent dark regions that change intensity?
Mars
Most asteroids lie between the orbits of ____ & ____.
Mars and Jupiter
The planet with the greatest temperature extremes is _____.
Mercury
Which is the smallest planet?
Mercury
Which planet has a cratered surface similar to Earth's moon?
Mercury
The remains of extraterrestrial particles that are found on Earth's surface are called ____.
Meteoroids
The small particles that produce a streak of light upon entering Earth's atmosphere are called ____.
Meteors
Which satellite of Uranus has the greatest variety of landforms of any satellite yet examined?
Miranda
The formation of the solar system from a huge cloud of dust and gases is called the _____.
Nebular theory
Which planet is associated with the Great Dark Spot?
Neptune
What characteristic distinguishes Neptune from the other planets?
Neptune is extremely cold.
According to a relatively recent discovery, which planet has one satellite?
Pluto
Which planet might best be described as a large, dirty iceball?
Pluto
The most obvious difference between the terrestrial and the Jovian planets is ____.
Size
What is the Oort cloud?
The Oort Cloud is an extended shell of icy objects that exist in the outermost reaches of the solar system.
The lowest surface temperature yet measured on any body in the solar system occurs on ______.
Titan
Which moon has a substantial atmosphere?
Titan
Which planet's axis of rotation lies nearly parallel with the plane of its orbit?
Uranus
On which thickly clouded planet has radar mapping revealed a varied topography consisting os plains, highlands, and thousands of volcanic structures?
Venus
Which planet has a dense carbon dioxide atmosphere and high surface temperatures?
Venus
Which planet is second only to the moon in brilliance in the night sky?
Venus
Which event is currently responsible for shaping Mars' surface?
Wind
Which of the following is not considered part of the solar system? a. galaxies b. terrestrial planets c. Jovian planets d. sun
a. Galaxies
The relatively small, rocky bodies generally found orbiting between Mars and Jupiter are known as _______.
asteroids
Which os the following is not a Jovian planet? a. Uranus b. Earth c. Saturn D. Neptune
b. Earth
Which of the following is true of dwarf planets? a. they are known for their ability to pull in smaller nearby debris. b. they are only found beyond Neptune c. they are the same size or smaller than Pluto d. they are composed of rock and ice
c
Which of the following is not a terrestrial planet? a. Earth b. Mars c. Jupiter d. mercury
c. Jupiter
Which of the following is proportionally more abundant on terrestrial planets than on Jovian planets? a. methane b. ammonia ice c. silicate minerals d. hydrogen
c. silicate minerals
Which of the following is NOT a characteristic of the Jovian planets? a. located beyond the orbit of Mars b. composed mainly of gases and ices c. thin atmospheres d. large size
c. thin atmospheres
Which os the following is a characteristic of Jupiter a. huge rotating storms b. dense atmosphere c. thin ring system d. all of the above
d. all of the above
Until 2006, Pluto was considered a planet. Now Pluto is considered to be a ______.
dwarf planet
What two forces affect the tail of a comet?
radiation pressure and solar wind
