Project Physics Tests 5, Models of the Atom.

Test items relating to Project Physics Unit 5 are presented in this booklet. Included are 70 multiple-choice and 23 problem-and-essay questions. Concepts of atomic model are examined on aspects of relativistic corrections, electron emission, photoelectric effects, Compton effect, quantum theories, electrolysis experiments, atomic number and mass, particle scattering, charge-to-mass ratio, de Broglie wavelength, Balmer formula, Heisenberg's uncertainty principle, spectroscopic analysis, x-radiation, photons, Millikan oil-drop experiment, and atomic transition. Suggestions are made for time consumption in answering some items. Besides directions and a few illustrations for explanation purposes, related physical constants, definition, and equations are provided. The work of Harvard Project Physics has been financially supported by: the Carnegie Corporation of New York, the Ford Foundation, the National Science Foundation, the Alfred P. Sloan Foundation, the United States Office of Education, and Harvard University. (CC)