ASTR 101 Final- Young (PART 5- new material)
Uranus and Neptune
On which of the giant planets do we think we can find deep "oceans" of liquid and ice water, methane and ammonia?
Saturn
On which planet have astronomers witnessed rare violent storms that produce lightning?
the Kuiper Belt
Our modern understanding of Pluto is that it is a member of:
Hydrogen
The Gas Giant planets are composed mostly of ___________.
The temperature and pressure increases as you go down in the planet
Why are the interiors of the giants liquid?
They are made of dark organic material
Why can't we see rings around Uranus even with an optical telescope?
Jupiter's gravities prevented material in that zone from getting together
Why do astronomers today think that we have an asteroid belt and not a planet between Mars and Jupiter?
It rotates very fast
Why is Saturn oblate?
Ice
A main difference between asteroids and comets is that asteroids are mostly made of rock and comets are mostly made of
The wind direction alternates East/West
A planet will have bands in its atmosphere like Jupiter if:
meteorites
Chunks of solid material that survive passing through the Earth's atmosphere and are found on the Earth's surface are called
Asteroid
How was Ceres classified before it was called a dwarf planet?
In the asteroid and Kuiper belt
Some of the early planetesimals that formed the solar system still survive today. Where would you find such planetesimals?
Charged particles from the sun colliding with atoms in the atmosphere
The Auroras are caused by
E. all of the above
The Red Spot of Jupiter is A. a high pressure storm system in the atmosphere B. twice the size of Earth C. variable in shape D. long-lived (observed for over 300 years) E. all of the above
Charged atoms; straight
The ion tail of a comet is made of _________ and is ___________.
Jupiter
The planet that has an axis that points roughly straight up, and thus has no seasons to speak of, is:
Billions of chucks (of various size) that all orbit the equator of each planet
The rings of the giant planets consist of:
Cracks and ridges in the ice surface and few craters
What evidence can you give that shows the surface of Jupiter's moon Europa must be relatively young?
impact craters
What features are abundant on Earth's moon and almost absent on moons like Titan and Io?
An icy nucleus
When a comet is not active far from the Sun, what does it look like?
Have a meteor shower as the dust burns up
When a comet leaves its dusty debris behind in its orbit, the Earth can pass through this debris and
Moons torn party tidal forces
Where did most of the particles in Saturn's rings come from?
Enceladus
Which moon has geysers that eject water and ice into space?
D. Thin atmosphere with large daily temperature changes
Which of the following best describes the surface of Mars? A. Very cold with high pressure B. Dim with thick toxic atmosphere C. Yellow sky and low surface pressure D. Thin atmosphere with large daily temperature changes
Rocky core, liquid metallic hydrogen, gaseous hydrogen
Which of the following most accurately describes the interior of Jupiter, from its center out to its edge?
