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Unformatted text preview: Measurement in Physics AP Physics B SI units for Physics The SI stands for "System International”. There are 3 fundamental SI units for LENGTH , MASS , and TIME. They basically breakdown like this: SI Quantity SI Unit Length Meter Mass Kilogram Time Second Of course there are many other units to consider. Many times, however, we express these units with prefixes attached to the front. This will, of course, make the number either larger or smaller. The nice thing about the prefix is that you can write a couple of numbers down and have the unit signify something larger. Example: 1 Kilo meter – The unit itself denotes that the number is actually larger than "1" considering fundamental units. The fundamental unit would be 1000 meters Most commonly used prefixes in Physics Prefix Factor Symbol Mega ( mostly used for radio station frequencies) x 10 6 M Kilo ( used for just about anything, Europe uses the Kilometer instead of the mile on its roads) x 10 3 K Centi ( Used significantly to express small...
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This note was uploaded on 11/18/2011 for the course PHYS 121 taught by Professor Burgeson during the Fall '11 term at BYU.
 Fall '11
 Burgeson
 Physics, Mass, AP Physics

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