Exam 2 Flashcards
Structure of Earth
Crust, Lithosphere, Magma, Lava, Mantle, Liquid Core, Solid Core, Magnetic Field, Plate Tectonics
Nebular Theory of Solar System Formation
Jovian Planets, Terrestrial Planets, Frost Line, Asteroid Belt, Planetesimal, Kuiper Belt, Oort Cloud, Gravity, Age of Solar System
Why is there life on Earth
Plate tectonics, liquid water on surface, magnetic field, oxygen in atmosphere, x-ray and UV rays blocked by atmosphere
Terrestrial Planets
Mercury, Venus, Earth, Mars
Jovian Planet Formation
Primarily hydrogen and helium, formed beyond the frost zone, core of rock and ice, system of rings
Jovian Planets
Jupiter, Saturn, Uranus, Neptune, Pluto
Asteroids
Leftover planetesimals from T\errestrial planets, came from the frost line
Comets
Leftover planetesimals from formation of Jovian planets
Characteristics of a Comet
Nucleus, Coma, Tails
What are the tails of a comet made of?
Plasma, Dust, Debris
What causes Meteor showers
Debris
Impacts
Cause mass extinction
Mass Extinction Asteroids/Comets are
10km wide and are created due to dust/debris in the atmosphere
70% of all stars have
at least one planet
Indirect Observation
Gravitational Tug, Transit, Astrometric, Doppler
Properties Ganymede
Only Moon with internally-generated magnetic field
Properties of Io
Most volcanically-active body in the solar system
Properties of Triton
Retrograde Orbit
Properties of Titan
Thick atmosphere of methane and similar to Earth with rivers/lakes
Properties of Enceladus
Very tiny moon jets of water vapor and ice jetting from the southern pole
Properties of Europa
Evidence of liquid ocean beneath the surface
Deimos
Mars
Titan
Saturn
Charon
Pluto
