ASTR 1010 Fall 2019 Study Guide for Quiz #3

READING: Section 2.8; Chapter 3; Chapter 4.

Topics you should know and understand for Quiz #3 (not necessarily a complete list)

1) DEFINITIONS: weightlessness (freefall), kinetic energy, potential energy, radiative energy, joule, calorie, Calorie (kilocalorie), watt, kilowatt-hour, center of mass, escape velocity, light, electromagnetic radiation, Angstrom, nanometer, thermal radiation (also called heat radiation or blackbody radiation), electromagnetic spectrum, wavelength, frequency, Hertz (Hz), megahertz (MHz), luminosity, emission line spectrum (bright line spectrum), absorption line spectrum (dark line spectrum), atom, proton, neutron, electron, energy level diagram, Doppler shift, redshift, blueshift, excitation, ionization, ion, isotope, deuterium (deuteron), Heisenberg Uncertainty Principle.

2) LAWS OF NATURE: Wien's Law; the mathematical formula for calculating the center of mass; orbital velocity for circular motion formula; escape velocity formula; Stefan's Law; the inverse square law of light; Kirchoff's Laws; the relationship between the energy, the wavelength, and the frequency of light.

3) OTHER THINGS YOU SHOULD KNOW: The six main regimes of the electromagnetic spectrum, and their relative wavelengths, energies, and frequencies; units of mass, distance, density, velocity, acceleration, energy, force, power (luminosity), temperature, and frequency; the three temperature scales in common use, and the boiling and freezing points of water in each; what weightlessness is; what causes a) a continuous spectrum, b) an emission line spectrum, and c) an absorption line spectrum; two processes that can excite (or ionize) an atom; the basic energy level diagram of the hydrogen atom, and what jumps produce the H-alpha and H-beta lines.