Astr 1040 Wsu Fall 12 23003

Front 1

The giant planets are made primarily of carbon dioxide and methane.

Back 1

F

Front 2

Jupiter is approximately 30 times more massive than the Earth

Back 2

F

Front 3

As seen from the outer giant planets, the Sun would appear as simply a very bright star in a sea of fainter stars

Back 3

T

Front 4

Jupiter’s mass is more than twice the mass of all the other planets combined.

Back 4

T

Front 5

On the giant planets, the atmospheric vortices that occur almost always lie between oppositely directed zonal winds.

Back 5

T

Front 6

Uranus and Neptune are less massive than Jupiter and Saturn, probably because they formed earlier than Jupiter or Saturn.

Back 6

F

Front 7

The strong magnetic fields of Uranus and Neptune arise from magnetic dynamos in their liquid rocky cores.

Back 7

F

Front 8

When charged particles oscillate around magnetic field lines of a planet they emit radiation in the microwave region of the spectrum.

Back 8

F

Front 9

It is theoretically possible for Earth to someday have a temporary ring structure.

Back 9

T

Front 10

The presence of shepherd moons keeps the giant planets’ ring systems completely stable and the rings will last forever.

Back 10

F

Front 11

The gas giants are composed primarily of:

Back 11

a. hydrogen

Front 12

Why are Jupiter and Saturn not perfectly spherical?

Back 12

b. They rotate rapidly.

Front 13

All the giant planets except __________ experience seasons.

Back 13

a. Jupiter

Front 14

__________ has the most extreme seasons of any planet in the Solar System

Back 14

c. Uranus

Front 15

You could fit roughly __________ Jupiters across the diameter of the Sun and roughly __________ Earths across Jupiter’s diameter.

Back 15

c. 10; 10

Front 16

A planet will have bands in its atmosphere like Jupiter and Saturn if:

Back 16

c. the wind speeds vary greatly with latitude

Front 17

Uranus and Neptune are bluish green because they contain large amounts of:

Back 17

b. methane

Front 18

Why are all clouds on Jupiter not white, as on Earth?

Back 18

c. There are impurities in their ice crystals.

Front 19

The fact that Jupiter’s radius is contracting at a rate of 1 mm/year results in:

Back 19

d. Jupiter radiating more heat than it receives from the Sun

Front 20

The strongest magnetic fields in the Solar System are found on which planet?

Back 20

a. Jupiter

Front 21

Two years after first being observed, astronomers reported that Saturn’s rings vanished. What happened to them?

Back 21

b. The rings lined up with Earth, and they were too thin to be observed.

Front 22

Why would a planet’s rings reflect 50 percent of the sunlight they receive?

Back 22

a. They are made of ice.

Front 23

Pluto is the largest member of the Kuiper Belt.

Back 23

F

Front 24

Eris is classified as an asteroid even though its mass is 28 percent larger than Pluto’s mass.

Back 24

F

Front 25

Io is by far the most geologically active moon in the Solar System.

Back 25

T

Front 26

Eruptions of water-powered geysers have been seen on the surface of Saturn’s moon Titan.

Back 26

F

Front 27

Lakes of methane, ethane, and other hydrocarbons can be found on the surface of Saturn’s moon Titan.

Back 27

T

Front 28

The oceans under Europa’s icy crust could be very deep and could contain more water than all the oceans on the Earth.

Back 28

T

Front 29

The yellow colored patches of Io’s surface are fields of sulfur dioxide snow.

Back 29

T

Front 30

Most asteroids are found in orbit around the Sun between the orbits of Jupiter and Saturn.

Back 30

F

Front 31

Some asteroids have moons just as planets do.

Back 31

T

Front 32

Although asteroids are small individually, when combined they make up a significant fraction of the total mass of the planets.

Back 32

F

Front 33

All short period comets have a period < 20 years.

Back 33

F

Front 34

Cometary nuclei provide evidence that the ingredients necessary for the creation of life were present in the early solar nebula.

Back 34

T

Front 35

The most common type of meteorites found are iron meteorites

Back 35

F

Front 36

Meteorites are more likely to come from asteroids than comets.

Back 36

T

Front 37

All meteorites are remnants of planetesimals that never coalesced to form a planet.

Back 37

F

Front 38

The surface of the dwarf planet Eris has very high albedo and is covered with:

Back 38

a. methane ice

Front 39

Which object has turned itself inside out numerous times, leading to lighter elements escaping, sulfur compounds composing the crust, and heavier elements making up the core?

Back 39

d. Io

Front 40

How do particles from Enceladus wind up in Saturn’s E ring?

Back 40

b. Water geysers erupt from the surface and expel them into space.

Front 41

If a moon has a retrograde orbit then it:

Back 41

d. all of the above