Astronomy 111, Session 003
Review Topics on Exam 2
The exam will take place at 7:20 PM to 8:30 PM on Nov. 6
The exam consists of 50 multiple-choice questions, covering chapter 5, 6, 7, 8 and 9 only.
Note 1: In each chapter, all sections are covered, unless explicitly excluded
Note 2: In each chapter, all boxes are excluded, unless explicitly included
·
Chap. 5 --- The Nature of Light (all 9 sections, and
o Speed of light
o Electromagnetic radiation, all types of electromagnetic radiation; color
o Blackbody radiation; three temperature scales
o Wien’s law; Stefan-Boltzmann’s law
o Dual properties of light
o Spectral lines; Kirchhoff’s law on continuous spectrum, emission line spectrum, and absorption line spectrum
o Structure of atom; periodic table
o Bohr’s model of atom; orbit and energy level; emission; absorption
o Doppler effect; red shift and blue shift
· Chap. 6 --- Optics and Telescopes (all 7 sections)
o Refraction; Refraction telescope; focal point; focal length; light-gathering power
o Reflection telescope; objective mirror;
o Angular resolution; diffraction limit; seeing
o CCD
o Spectrograph; grating
o Radio telescope
o Telescope in orbit; what advantages in orbit
· Chap. 7 --- Comparative Planetology I: Our Solar System (all 8 sections)
o Solar system; Terrestrial planet; Jovian planets
o Large satellites
o Chemical composition of planets
o Light elements, heavy elements; Ice
o Asteroids; comets
o Impact craters; meteoroids; geologic activity
o Magnetic field of planets; fluid core; dynamo
o Diversity of solar system
· Chap. 8 --- Comparative Planetology II: the Origin of Our Solar System (all 6 sections)
o Characteristics of solar system; scientific methods
o Abundance of Chemical elements; Origins of H and He, and heavy elements; interstellar medium
o Solar system age; radioactive age-dating
o Solar nebula hypothesis; protosun; disk
o Protoplanetary disk; condensation temperature; planetesimals; protoplanets
o Extrasolar planets
· Chap. 9 --- The Living Earth (all 7 sections)
o Active earth; source energy; greenhouse effect; greenhouse gas
o Earth’s interior structure; crust, mantle and core (outer and inner cores); seismic waves; melting temperature
o Plate tectonics; Pangaea; Asthenosphere; Lithosphere; subduction; Earthquack; Seafloor spreading
o Earth’s magnetosphere; solar wind
o Earth’s atmosphere; composition; effect of organism
o Temperature profiles; troposphere; stratosphere; mesosphere; thermosphere; convection; ozone
o Earth’s biosphere; Global warming; Ozone hole