lecture01 - PHYSICS 221 Fall 2009 Dr. Anatoli Frishman...

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Unformatted text preview: PHYSICS 221 Fall 2009 Dr. Anatoli Frishman [email protected] INTRODUCTION What is physics ?- A science-A basic science-The most basic science-Discovered by several generations of science Measurements Relationship between experiments and theory Mathematics What do we measure? - Physical quantities- Units- a unit is a measure of the quantity that is defined to be exactly 1 (one). Examples: meter, mile, gram, kilogram.- Standard- a reference to which all the other examples of the quantity are compared.- Base quantities , and their standards. ~ How many base quantities do we need? Physics Mechanics Thermal properties Electromagnetism Optics Atoms & particles Electrostatic Electric current Magnetism Geometrical optics Wave optics Condensed Mater High energy Biophysics Classical physics Quantum physics Relativistic physics Quantum relativistic physics The International System of Units CGSE: centimeter, gram, second British engineering system has force instead of mass as one of its basic quantities, which are feet, pounds, and seconds....
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This note was uploaded on 10/21/2010 for the course PHYS 221 taught by Professor Herrera-siklody during the Fall '08 term at Iowa State.

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lecture01 - PHYSICS 221 Fall 2009 Dr. Anatoli Frishman...

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