![]() Repeat: you will use the proper exponential value (like 10 5) in a solution to a problem you will NEVER use just the exponent (the 5) in a solution. The 5 is only used in descriptions about how to determine the distance. In other words, 10 5 is used in the solution to the problem the 5 by itself will never be used. In the problems to follow, the exponential form will be the one used. Done as an exponent, the absolute exponential distance between kilo- and centi- is 10 5. You can also switch to the converter for hecto to giga. If you need to convert giga to another compatible unit, please pick the one you need on the page below. These units belong to the same measurement system: Metric Prefixes. The absolute exponential distance between 3 and -2 is 5, not 1. This page features online conversion from giga to hecto. For example, someone might mentally do the distance between kilo and centi by comparing the exponents of positive 3 and negative 2 and getting one. What you should do is compare the two exponents as if they were placed on a number line made of exponents and the compute the absolute exponential distance between them. Prefix Symbol Multiplying Factor Giga Mega Kilo Hecta Deka Deci Centi Milli Micro Nano G M k h da d c m u n 1,000,000,000 1,000,000 1000 100 10 0.1 0.01. For example, the absolute distance between milli and centi is 10 1. ![]() The skill I'm talking about is figuring out the absolute, exponential distance between two prefixes. It is an important skill that goes somewhat untaught, so I've decided to address it. It seems that everybody just assumes students pick it up somewhere in a math class. The reason is that this particular skill isn't really mentioned by chemistry (or physics) teachers. This next set of problems deserves some comment. Problems concerning the exponential distance between two prefixes This makes it a prime target for teachers to test. Given either the name or the symbol of the prefix, give the other:Ī word to the wise: deca- (symbol = da) is a little used unit prefix. Although France made the measurement official in 1795, the word 'hectare' comes from the Greek word 'hekaton', meaning one hundred. Fittingly, it does have something in common with Prince Hector: both come from Greece. Here are only some possible problems (of many): A hectare is a unit of measurement for an area, specifically representing 10,000 square metres. Problems could give any one and ask for one or both of the others. There are three items - name, symbol, and size - that must be known. For example, centigram means we are count in steps of one one-hundredth of a gram, μg means we count by millionths of a gram.įor another presentation of these prefixes, please go here. These skills will be necessary in order to correctly convert one metric unit to another.Ī metric prefix is a modifier on the root word and it tells us the unit of measure. Note for the future: you will need to determine which of two prefixes represents a bigger amount AND you will also need to determine the exponential "distance" between two prefixes. Here is a number line with the two prefixes in problem sixteen marked: Compute the absolute, exponential distance between two given prefixes: 16) kilo and femto. There is even someone selling an e-book for metric prefix flashcards. Here is a search for metric prefix flashcards. In order to properly convert from one metric unit to another, you must have the prefixes memorized. Take a look at the most commonly used metric prefixes for length, mass, volume, and time.A brief discussion of the basic metric units. Metric system prefixes provide a simple way to understand exactly what each unit of measurement stands for in the metric system, since the prefixes tell you how much bigger a unit is than the base unit. Below is a table of the most commonly used metric prefixes that can be added to the basic units of measurement. But adding milli- to “meter” creates “millimeter,” which means one thousandth of a meter. ![]() For example, adding kilo- to the unit “meter” makes “kilometer,” or one thousand meters. Prefixes are added as place values are added. Basic metric units and what they measure include: Metric system prefixes come before a basic unit of measure to indicate a multiple (or submultiple) of that unit. Common Metric System Prefixes and Definitions
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