Assuming that other planetary systems form in the same way as our solar system formed, where would you expect to find terrestrial planets?
Terrestrial planets will likely be located nearer the planetary system's star than any jovian planets.
Which planet is approximately halfway between Pluto's orbit and the Sun?
Uranus, the seventh planet from the Sun
The dwarf planet Eris was discovered in 2005, orbiting the Sun at an average distance about twice that of Pluto. In which of the following ways do Pluto and Eris differ from the terrestrial and jovian planets in our solar system?
1. Both Pluto and Eris are SMALLER than any of the terrestrial planets. 2. Both Pluto and Eris travel in MORE ELLIPTICAL orbits than any of the terrestrial or jovian planets. 3. Both Pluto and Eris are LESS MASSIVE than any of the terrestrial or jovian planets.
Highlands have or are. . .
high elevations, mountainous regions, highly cratered
Maria have or are. . .
low elevations, flat, low cratered
How do the densities of the jovian and terrestrial planets compare?
All terrestrials are more dense than any of the jovians.
Without the greenhouse effect operating in our atmosphere
Earth would have an average temperature of -23 degrees Celsius.
Moon's rotation period and orbital period are the same due to. . .
tidal locking
We determine the structure of the Earth's core using
seismic wave data.
What gas is the primary constituent of our atmosphere?
Nitrogen
The crust of the Earth is covered by about ________ water in the hydrosphere.
70%
The Greenhouse Effect works by trapping
outgoing infrared radiation from the Earth.
The average density of the Moon is less than that of the Earth.
TRUE
The three most abundant gases in our atmosphere are nitrogen, oxygen, and argon.
TRUE
All the jovian planets lie beyond the asteroid belt.
True
What is the best description of the Earth's rotation over its entire history?
It has slowed down very gradually at about .0015 seconds per century.
All the terrestrial planets lie inside the asteroid belt.
True
The presence of a magnetic field is a good indication that
we have a liquid metal outer core, spinning rapidly as we rotate.
Where does the energy come from to create tidal bulges?
The orbital and rotational motion of the Earth and Moon
prevents charged particles in the solar wind from reaching the surface.
Earth's magnetic field
Which of the following are the jovian planets?
NOT Pluto, Jupiter, Saturn, Uranus, and Neptune only
What can we conclude about the structure of Earth's interior knowing that the average density of Earth is higher than the average density of the rock on the continents and seafloor?
That Earth's most dense material must be beneath the surface
Planetary orbits
are almost circular, with low eccentricities.
How is the existence of Earth's unique atmosphere explained?
The oxygen in Earth's atmosphere is a result of early life on Earth.
What is TRUE of spring tides?
The difference between low and high tides would be GREATEST