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 box 5-1 and box 5-5)

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