The phrases “ several dozen “ and “ several hundred “ have meanings that are dependent upon suffixes that have been assigned to a numeral grouping of items. It is most practical, however, to have an internationally agreed upon method of assigning prefixes that denote numerical meanings to words. The Systeme International ( SI )Continue reading “AP PHYSICS: Power of Ten Prefixes”
Tag Archives: base 10
SOUND: The Decibel Scale
One unit of ( X ) is equal to ten times one-tenth of ( X ). We are at liberty to allow ( X ) to be a quantity of anything we wish. For example, let’s allow ( X ) to be a dollar bill: 1 dollar = ( 10 )( 1 tenth dollars )Continue reading “SOUND: The Decibel Scale”
MATHEMATICS: A Review of Logarithmic Functions and Exponential Math
The basic rules of exponents state that some number ( a ) raised to the ( x ) power is equal to ( y ). For example, ( 2 )( 2 ) = 4. This can also be expressed as ” two squared ” = 2^2. Likewise, ( 2 )( 2 )( 2 ) =Continue reading “MATHEMATICS: A Review of Logarithmic Functions and Exponential Math”
CHEMISTRY: Understanding The pH Scale
In order to truly understand what a ” pH ” means, one must first understand how exponents are used in mathematics. Afterward, the usefulness of logarithms, which are the opposite operation of exponents, will be greatly appreciated. Ten times one can be written as 10 X 1. Likewise, it may be written as 10*1. MostContinue reading “CHEMISTRY: Understanding The pH Scale”