If you wish to pursue the study of science, units are immensely important. Without units, a number can be referred to as just a number without having any meaning. The SI or “Systeme international d’unites” system can be referred to as the standard for simplifying communication involving international science. The given system is known to comprise as many as 7 base quantities along with 16 prefixes for designating the amount.
The given reference tables reveal the different bases as well as prefixes used for designating metric units with the help of the SI system.
The given base units can be combined with any of the existing prefixes for creating units that tend to be the most appropriate for the factor that is being measured. For instance, you would not be measuring the overall distance of New York from LA in meters –the base unit. Rather, you will consider using the unit of kilometers, or in some cases, even megameters for the measurement. The different types of base units can also be combined for forming what are referred to as the “derived units.” For instance, speed can be calculated in meters/second or kilometers/nanosecond. The options for forming relevant combinations tend to be endless.
It is also important to note that the SI system is known to make use of abundant scientific notation. The given process helps in making it simpler to write down the numbers without several decimal places or many zeros. For instance, if you had to write all the digits, one micrometer would be equivalent to 0.000001 meters. Therefore, it is quite clear that it could be highly challenging to maintain a track of the existing zeros. As such, the scientists out there like to simplify the overall measurements as much as possible.
If you are not that adept with your skills of scientific notations, then you should aim at practicing the same before going over with solving problems. To refresh you a little bit, it is important to note that the power of 10 is known to refer to the specific number of decimal places that a particular decimal point is required to move. When the power happens to be positive, you are required to move rightwards. At the same time, you are required to add zeros to the number. On the other hand, when the power tends to be negative, then you should move leftwards. You should also add decimal places.
Converting Between Different SI Systems
The process of converting between different SI systems and prefixes is a vital science skill that requires ample practicing. To memorize different prefixes and the respective meanings, it becomes a highly easier process to ensure the necessary conversions. Therefore, you should aim at memorizing as many prefixes as you can. Indeed, you might be required to refer to the table above from time to time.
An Instance of SI Conversion
Here, let us take an example of a single-step conversion between the different prefixes of the SI System. Let us consider converting 955 kg to mega-grams – http://convertwizard.com/955-kilograms-to-grams. We will require two vital pieces of information from the above-specified table. Kilogram is known to refer to 103 grams. On the other hand, mega-gram is known to refer to 106 grams. When you make use of the available information, you can set up the dimensional analysis conversion.
955kg X 103/1kg X 1Mg/106 = 0.995 Mg
Another simpler way of approaching the given problem is to inquire “How many kilograms will be fitting inside a single mega-gram?” For answering the same, you should look into the meaning of the given two units -1 kilogram implies 103 grams. On the other hand, one mega-gram implies 106 grams. If we go ahead with dividing mega-grams by kilograms, then we will observe that there happens to be 1000kg in one mega-gram. Therefore, you can make use of a different factor for solving the given conversion:
955kg X 1Mg/1000kg = 0.995Mg
Both the mechanisms are going to yield the same results. However, it is regarded that the second method turns out to be immensely straightforward while yielding easier calculations. You can make use of any method of conversion that you are comfortable with. However, you can consider making use of the second method of conversion for the overall ease of measurement.
Converting Celsius to Fahrenheit
The conversion of Celsius to Fahrenheit is probably one of the most common, yet highly confusing measurements out there. However, the simple Degree C to Degree F is quite simple. Whether you are searching for Celsius to Fahrenheit conversions or any other unit conversion formula, you can seek the same at https://www.etci.ie/38-c-to-f. Here, you can come across all unit conversion formulae that are easily accessible online.
As both Celsius as well as Fahrenheit scales tend to be offset –neither being defined to start at 0, the conversion becomes quite difficult. Moreover, for every additional heat energy unit, the Degree C & Degree F scales tend to add a different value additionally. The formula for converting Degree F to Degree C is as follows:
Degree F = Degree C X 1.8000 + 32.00
If you are fond of Math or Science as your primary subjects, it is imperative for you to be aware of the common unit conversions and their basic formulae. Learning the same will help you simplify complex problems on the go.