Unit 4 Flashcards
Jovian Planet
jupiter like planet
Jupiter
largest planet, 92 satellites, hydrogen and helium atmosphere
saturn
rings, hydrogen (makes it up), windy, 83 satellites
Uranus
tipped on it’s side, hydrogen atmosphere, 15 satellites
Neptune
blue from methane in atmosphere, 8 satellites, windiest planet
Pluto
dwarf planet
On which planet are the fastest wind speeds found?
Neptune
The four Jovian planets (in order of increasing distance from the Sun) are:
Jupiter, Saturn, Uranus, Neptune
Which of the following names refers to Jupiter’s four largest moons?
The Galilean Satellites
What is the Great Red Spot?
Huge storm on Jupiter.
Asteroids
rocky fragments
Asteroid belt
between mars and jupiter, most asteroids are there
Apollo asteroids
asteroids whose orbit crosses the earth’s orbit
Kirkwood Gaps
gaps in Asteroid belt from Jupiter’s gravitational pull
Bodes’s law led people to search for which of the following in between Mars and Jupiter?
A small planet
Meteoroids
chunks of rock in space and smaller than asteroids
Meteor
brief flash of light when meteoroid strikes earth’s atmosphere
meteorites
meteoroid fragments stirke earth
Size of meteoroids
If a chunk of rock is smaller than a few hundred meters in diameter, it is called a meteoroid; if it is larger it is called an asteroid.
comets
made of ice and dust
comets nucleus
solid part of comet
comets coma
haze around comet made from sun melting it
ion tail
comet tail made of ionized atoms
dust tail
comet tail made form dust particles
Oort cloud
50,000 AU from sun, 12 billion comets there
Aquarius
the water bearer, jug of water with line pulling water out, no bright stars
Pisces
the fish, pentagon with line going up out of it
Aries
the ram, a line going slightly down, no bright star
Taurus
the bull, stick person on its side, no bright star
Which direction does the ion tail of a comet always point?
Away from the Sun
Which moon has a thick atmosphere of nitrogen?
Titan
Where in the solar system does the asteroid belt lie?
between the orbits of Mars and Jupiter
Which of the following planets have rings?
Saturn, Jupiter, Uranus, and Neptune
a brief flash of light in the sky
meteor
rocks found on Earth that came from space
meteorite
small chunks of rocky material in space
meteoroid
“dirty snowballs”
comets
large chunks of rocky material in space
asteroid
t/f Because of the way in which it orbits the Sun, the temperature of Uranus is very different at its south pole than at its north pole.
true
Which planet has the Great Red Spot?
Jupiter
t/f
Jovian planets are made up mostly of hydrogen and helium.
true
t/f
A comet collided with Uranus in 1994.
false
Which direction does the ion tail of a comet always point?
away from the Sun
Which planet has the most moons?
Jupiter
t/f
Jupiter has more known moons than any other planet in the solar system
true
t/f
The Apollo asteroids never cross Earth’s orbit.
false
t/f jovian planets are larger than Terrestrial planets.
true
t/f Copernicus discovered four moons around Jupiter.
false
t/f Jupiter rotates much faster than Earth does.
true
The four largest moons of Jupiter are sometimes called what?
Galilean satellites
