The prefixes used in the metric system and their values are defined in Table 1 below. That’s a good way to remember the speed of light: 1 footper nanosecond. In biology, it is often useful to talk about a length of DNA in base pairs, and large lengths of DNA may be referred to in kilobases (kb) or megabases (Mb). A nanosecond a billionth of a second is the time that it takeslight to travel 1 foot. For example, your computer’s hard drive may be able to store 100 gigabytes (GB) of information – this is equal to 100,000,000 bytes. In fact, you will find that a number of fields use the SI prefixes to modify units not traditionally considered metric units. If we were to create our own unit called the “harvard”, a “kiloharvard” would be equal to 1000 harvards. A nanosecond a billionth of a second is the time that it takeslight to travel 1 foot.
Take a look at the most common metric system prefixes and where you’ll find them. Likewise, a kilometer is equal to 1000 meters, while a micrometer is equal to 0.000001 m. The system is organized by giving names to each order of magnitude that is, every time zeros are added to the place value (ones, tens, hundreds, thousands, etc.), metric system prefixes are used to indicate the value. A basic decimal system would lead to mathematical messiness by forcing you to carry lots of digits and powers of ten around in various domains of study. For example, a kilogram is equal to 1000 grams, while a microgram is equal to 0.000001 g. A common size for capacitors in BEAM robots is 2.2 x 10 -7 Farad a common size for capacitors in many other applications is 1 x 10 -12 Farad. On the basis of the power of 10 the following categories can be defined that are as follow: The values of all are as follows. Most but not all units vary from the base unit by multiples of 1000 or 1/1000.Ĭommonly used prefixes are listed in Table 1. Smaller and larger units are created by adding prefixes to these units to indicate the order of magnitude. In biology, the most commonly encountered measurements are the meter (which measures length or distance), the gram (weight), the liter (volume), and the mole (amount). The metric system is based on a limited set of base units. The metric system is also referred to as the International System of Units or SI, an abbreviation of its French name, Le Système International d’Unités. Most of the units used in science are metric units. Life Sciences Cyberbridge The Metric System
0 kommentar(er)
