PHY 113 Midterm: Exam 2 Study Guide

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8 Jun 2018
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Chapters 16 & 6-10
Chapter 6 (the Solar System)
Terrestrial (small, rocky, few moons, closer in) vs.
Jovian (big, gaseous, lots of moons)
Asteroid/meteor vs. comets
Why isn’t Pluto a planet?
General properties of solar system (disk, same rotation, planets isolated, planet
dichotomy)
Nebular Theory of solar system formation How it explains what we see
Chapter 16 (the Sun)
Radiation vs. Convection energy transport
Different Layers (photosphere, corona, etc.)
Equilibrium (pressure out, gravity in)
Fusion in Core. Density/Temp changes with radius Corona (much hotter!?) magnetic
field
Magnetic Fields
Wrap around planet
Sunspots! (11 year cycle)
Prominences, solar flares, CME’s, solar wind
Chapter 7 (Earth)
Structure (Inner core .... Magnetosphere)
Atmosphere (convection, ozone, greenhouse effect) Earthquakes (s/p waves map
interior)
TectonicPlates. Boundaries volcanoes/ earthquakes
Radioactive dating (concept, “half-life”)
Magnetosphere (auroras, Van Allen belts) Tides (tidal forces from Sun & Moon)
How is Earth special (for life)?
Chapter 8 (Mercury / Moon)
Moon: Basic properties (density, size, structure), Maria vs. Highlands, near vs. far side,
tidal effects from Earth, history of lava flows, no magnetic field, Giant Impact theory of
formation
Mercury: Basic properties (density, size, structure), craters, scarp (contraction in past),
3:2 resonance around Sun, magnetic field, always near Sun in sky
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