Jovian Planets

Front 1

Comparing the Jovian and terrestrial planets in terms of their group characteristics, which of these is NOT correct?
*The Jovian planets have a higher density.
*The Jovian Planets are more massive.
*The Jovian planets have stronger magnetic fields.
*The Jovian planets have many more satellites.

Back 1

The Jovian planets have a higher density.

Front 2

Jupiter, Saturn, and Neptune give off more energy to space (as heat) than they receive from the sun, which results in the inference that their interiors:

Back 2

are hot

Front 3

Which of the following Jovian planets has the lowest density?

Back 3

Saturn

Front 4

The chemical composition of Jupiter indicates the two most abundant elements are:

Back 4

hydrogen and helium

Front 5

Which two Jovians are most similar in sizes masses, composition, and structure?

Back 5

Neptune and Uranus

Front 6

Compared to the Earth's interior, the interior of Jupiter is similar because:

Back 6

both are largely liquid and conduct electric currents

Front 7

Considering the state of the materials in its interior, Jupiter is mostly:

Back 7

liquid

Front 8

Which of the following do the rings of Jupiter, Saturn, and Uranus have in common?

Back 8

small particles orbiting the planet

Front 9

Infrared observations indicate that much of the surface of Pluto is covered with:

Back 9

methane ice

Front 10

Jupiter's moon Io has no observable impact craters because:

Back 10

volcanic activity has covered them over.

Front 11

Of the Galilean moons of Jupiter, Callisto has a surface that is the most heavily cratered. This fact implies that, compared to the others, Callisto has the:

Back 11

least evolved surface

Front 12

Compared to our moon, the Galilean moons of Jupiter tend to have:

Back 12

a lower density

Front 13

Consider the fact that both Jupiter and the Earth have strong planetary magnetic fields. In the context of the dynamo model, this means that both planets have:

Back 13

rapid rotation and conducting cores

Front 14

From the Voyagers, we now know that the atmosphere of Titan consists mainly of:

Back 14

nitrogen

Front 15

Except for Titan, the largest moons of Saturn are made mostly of:

Back 15

ices

Front 16

In what sense have the Jovian planet, compared to the terrestrial ones, NOT evolved much since their formation?

Back 16

the planets show no records of their pasts.

Front 17

From the results of the Voyager 2 mission of Uranus, we now know that the:

Back 17

magnetic field has a large tilt to the spin axis

Front 18

The Voyager 2 mission to Uranus showed that, compared to the Earth's magnetic field, the magnetic field of Uranus:

Back 18

has a much larger tilt with respect to the spin axis

Front 19

Jupiter has a relatively strong magnetic field which has been measured by planetary probes. The physical explanation is that Jupiter's:

Back 19

core is made of metallic hydrogen and the planet rotates rapidly.

Front 20

The motion of Jupiter's giant red spot is driven by:

Back 20

the differential rotation of regions of the upper atmosphere.

Front 21

Jupiter's moon, IO, is in a highly eccentric orbit. This means that IO spends alternate times in its orbit near and far from Jupiter. Knowing this, you could hypothesize that Io's volcanic activity could be caused by:

Back 21

internal heating of the satellite interior by tidal stresses.

Front 22

We refer to the planets Uranus and Neptune as sister planets. While they are remarkably similar in character, Uranus:

Back 22

rotates on an axis that is in the plane of its orbit

Front 23

Why was it so difficult to find the planet Pluto?

Back 23

it is far away and small

Front 24

What is one way that the existence of Pluto's satellite Charon was verified?

Back 24

The brightness of this binary system varied in a regular way.

Front 25

In 1988/1989, Pluto was near perihelion in it's orbit and measurements made during Pluto's occultation of a distant star showed that it had an atmosphere made of methane gas. This is unexpected for such a small planet. One possible explanation is:

Back 25

the sun's radiation heated Pluto enough to make the atmosphere.

Front 26

There are volcanoes on the surface of Jupiter's satellite IO which are active, and we infer that emitted gases are caused by internal heating due to tidal stresses as the planet moves in its highly elliptical orbit. We know that the gas contains sulfur from information gained by:

Back 26

optical spectroscopy observation

Front 27

Which of these bodies is NOT known to have active volcanoes presently?

Back 27

Mars

Front 28

Can exist as a liquid, solid, or gas on Titan's surface.

Back 28

Methane

Front 29

In molten form, erupts from the volcanoes on IO.

Back 29

Sulfur

Front 30

In liquid form, erupts from the geysers on Triton.

Back 30

Nitrogen

Front 31

Liquid droplets in clouds color Uranus and Neptune.

Back 31

Methane

Front 32

In frozen form, chief component of most jovian moons.

Back 32

Water

Front 33

Which is NOT true of all rings systems?

Back 33

Al are made chiefly of chunks of water ice.

Front 34

As large as our moon, but very smooth with brown lines on it.

Back 34

Europa

Front 35

Thin veneer of water ice covers a planet-wide ocean

Back 35

Europa

Front 36

May have bee shattered by impact, fallen back together.

Back 36

Miranda

Front 37

Most volcanic body in the solar system.

Back 37

Io

Front 38

Has atmosphere most like ours in composition and density.

Back 38

Titan

Front 39

The size and density of our Moon, but looks like a pizza.

Back 39

Io

Front 40

About as big as the planet Mercury, but orange in color.

Back 40

Titan

Front 41

In 1993, the most distant planet from the Sun.

Back 41

Neptune

Front 42

By itself, makes up 70% of mass of all planets.

Back 42

Jupiter

Front 43

Blue disk with much weather, including now disappeared Great Dark Spot.

Back 43

Neptune

Front 44

Bland blue-green disk, with poles presently facing Sun.

Back 44

Uranus

Front 45

Orbited by four moons as large or larger than ours.

Back 45

Jupiter

Front 46

Only planet whose pole is presently facing the sun.

Back 46

Uranus

Front 47

Only planet whose bulk density is less than that of water.

Back 47

Saturn

Front 48

Normally the strongest radio source in the solar system.

Back 48

Jupiter

Front 49

Its moon Triton is only known large retrograde satellite.

Back 49

Neptune

Front 50

Struck by Comet Shoemaker-Levy 9 in July 1994.

Back 50

Jupiter

Front 51

In December 1995, the Galileo probe found its atmosphere drier than expected.

Back 51

Jupiter

Front 52

Which statement about magnetic fields is FALSE?

Back 52

Jupiter's comes from its liquid magnetic helium