What are all the metric units of measure?

Answer 1

Measurements in DistanceMetricThe most commonly used measuring system is the metric system, which has - or should, rather - be taking place of the imperial system (see Imperial.) The metric system measures distance, width, length, height, and depth, and it uses the following measurements, from smallest to largest. (These are spelt in English.)

Nanometre

Micrometre

Millimetre

Centimetre

Metre

Kilometre

Hectare*

*See Field Measurements

There are, infact, numerous other measurements, not commonly used, that can be conjured by fixing a different prefix upon the word, for example, a Decimetre would be ten centimetres, this is worked out by adding the prefix "deci" which represents "ten." Infact, the prefix helps you to work out how many of them go in each other. "Centi" is the prefix for "100", so, the word is saying "One 100th of a Metre." Similarly, "Milli" means a thousand, although the prefix is misleading, and it sounds like it should be million. Despite this, you wouldn't find very many people who would believe you when you tell them that "Micro" is the prefix for 10,000. More likely, Micro and Nano could represent 10,000ths and 100,000ths, the prefix then being used variably to suit the word.

ImperialThe Imperial System is an alternative form of measurement, preceding the metric system, it was properly in use before the metric came around. It is unfair to say that is isn't commonly in use today, although it shouldn't be, most countries, with the exception of the USA, Liberia, and Myanamar, have accepted the metric system.. Currently, two or three generations of people living today still use the Imperial System, school children are taught the Metric, but some have learnt from parents/grandparents how the Imperial works. This being said, the Imperial may be being shunned out by the newer generation, it, however, dominates the road. Motorways, vehicles, maps, they all run by the mile, which, as we know, is an Imperial measurement, not a Metric. The speed of vehicles is mph (miles per hour, see the section on it,) and this is what all cars use, although most cars do also include kph below the mph (kph is kilometres per hour,) kph is the metric car speed measurement. Below is a list of the Imperial Measurements.

Thou/Mil

Inch

Foot

Yard

Furlong

Mile

League*

*This is no longer used.

The most commonly acknowledged ones are Inches, Feet, Yards, and Miles, there are few rulers that don't include inches on the back, and few builders that don't work by Feet, Yards, and Miles, as acknowledged above, it should not be around, but it still is, and is greatly used. In many cases, most find it harder to recognise measurements from the system they do not use, some do know both, but generally, if you're metric, 6 feet or 12 yards won't mean anything to you, and vice versa.

Field MeasurementsField measurements, such as Acres, fall under neither Imperial nor Metric measurements, but, of course, they have their own value in both. Like the Imperial system, their numbers in metric differ from the multiples of 10 that the metric tends to use, an acre, it's exact length widely debated, is generally thought to be 4046.8564224msq (metre squared) by the international standard, but if you prefer a nicer measurement, then use the imperial, 4,840yds (yards,) or 43,560sqft (square feet.) An Acre, while coming under neither Imperial or Metric, differs from the Hectare, which is, infact, a metric measurement, worth 100msq. The Hectare is no longer accepted as a part of the metric system, it used to be, but is still used to measure fields for farmers who hate the Imperial system, and want to still call Hectares metric. So, nowadays, Acres and Hectares are both part of neither system, but before-hand, only Acres were. Measurements in WeightGramsGrams are the metric unit of weight measurement that we use nowadays, although they are mostly the common unit of weight measurement, their uses aren't generally taken advantage of, we only use grams when we need to, for example, when weighing ourselves (see further on this section,) or when doing physics in Science. Going back to weighing ourselves, you'll find that, even those who grew up with the metric system, will find themselves very accustomed to weighing by stone, rather than grams. It's because most weighing scales do have grams, but in the smaller print, they make a bigger deal of the Imperial, rather than the metric, and, naturally, many opt for the bigger option, it may sound lazy, but that's pretty much how it happens. Now, let's list the tiers this measurement includes, again, listed from smallest to largest;

Yoktogram

Zeptogram

Attogram

Femtogram

Picogram

Nanogram

Microgram

Milligram

Centigram

Decigram

Gram

Decagram

Hectogram

Kilogram

Megagram

Gigagram

Teragram

Petagram

Exagram

Zetagram

Yottagram

Zeptogram

Imperial WeightThe weight measurements used in the Imperial system that succeeded the metric system were, again, not commonly within the 10s and 100s in converted metric units, and, these units tend not to share a common prefix between higher and lower tiers of measurement. Like Imperial distance measurements, they are more commonly used in books than Metric measurements, for example, in any novel, you'll find that, between, "He raced onwards, driving faster than he had ever drived before, he had passed a mile in under 10 seconds," and, "He raced onwards, driving faster than he had ever drived before, he had passed a kilometre in under 10 seconds," that people will prefer the first one. The same applies for weight, readers prefer, when idly referring to weight, that it be pounds and stone rather than grams and kilograms. Below are the Imperial measurements used for weight:

Grain

Drachm

Ounce

Pound

Stone

Quarter

Hundredweight

Ton*

*When made plural, this becomes 'tonnes', not 'tons'.

NewtonsNewtons, named, after most people know, after Sir Issac Newton, who had discovered the law of gravity at the age of 23 years old. While grams check the mass of an object, newtons check the gravity pulling upon the object, appropriately enough, although the two measurements can be converted to one another - 1 gram (1g) is equivalent to 0.0098066500286 Newtons, it's a little diverse, but the two units can be compared. There is only one tier for Newtons, and that is Newtons, so, that concludes this section on Mass and Gravity. Measurements in CapacityLitresThe most common form of measurement in Liquids, mostly drinks, are litres, although, if you went to the pub saying "I'll have 160ml of whiskey, please," then you would indeed get some funny looks. Litre comes from "Litron", which, via Latin, came from Greek, and, to tell of an interesting bit of trivia, litres can be converted into volume, 1 litre (1L) is the equivalent of 1DM3 (1 Cubic Decimetre,) or, in mathematical formula, 1L ≡ 0.001M3. On the side of bottles, you see how many litres are in the drink, in big bottles, it's normally two or three, with small bottles, 1 and below, and with tiny bottles, about half a litre. Pints and GallonsGenerally, when measuring the amount of liquid in Science, you use the Litric method (see above,) however, in places where food and drink is served, for example, Bars, Restaurants, Hotels, liquid is always measured in the Imperial units:

Quart

Pint

Gallon

These measurements are common whenever served, although, when drinks are sold, the labels on the side tend to use Litres.

VolumeVolume is a fickle measurement that is a cross-section of distance and capacity, and, it can be difficult, sometimes, when first introduced. The standard analogy is a cube, or a cuboid - 3D shapes with 6 faces, 8 vertices, and 12 edges. Volume is comparable to liquid, as they both use capacity, one cubic metre, or 1M3 is equivalent to 1000 litres, (1000L.)

This section upon volume needs adding upon.

Measurements in ICTPixelsPixels are the recognised form of measurement in Computer Graphics and Display, there is only one tier of measurement, although, in mobile phones, there are Megapixels, which are, basically, smaller and higher resolution pixels. The more megapixels a Mobile Phone has, the higher the resolution, and the better the quality. There are pixels dotted throughout your monitor, look closely into the screen, look hard, and you will see little squares, these are the pixels making up this page. Pixels are basically the building blocks of computers, only a little too small and complex for your two-year-old child to construct. Pixels are only the surface of the computer, the layout, and affect only the loading of an internet screen and the size of a graphic file. BytesBytes are another form of computer measurement, referred to in hard-drive space, there are certain limits for the number of bytes each computer can hold, the different brands vary, but, it's safe so say that any computer with millions of available bytes, has a pretty small hard-drive. In other words, there may be a limit, but it would take a year of making pointless and big files that you don't need, and never deleting out-dated or unnecesary files, to max it out. Bytes are not often used, we mostly use tiers 3 to 5, and sometimes tier 6.

Bits*

Bytes

Kilobytes

Megabytes

Gigabytes

Terabytes

Petabytes

Exabytes

Zetabytes

Yottabytes

We mostly use Kilobytes, Megabytes, and Gigabytes (KB, MB, GB,) although we do , and Yottabytes (PB, EB, ZB, YB) are unclear, as, the worlds' largest computers do indeed run by the terabyte, so, so far, PBs, EBs, and ZBs have no use other than sitting in a dusty 10000 page long dictionary in the Library of Congress.

*Bits are one tier below Bytes, they are the smallest possible form of Byte, there are 8 bits in a Byte. So the system goes, 8 bits in a byte, 1000 bytes in a KB, 1k (1000) KBs in an MB, 1k MBs in a GB, 1k GBs in a TB, 1k TBs in a PB, 1k PBs in an EB, 1k EBs in a ZB, and 1k ZB in a YB

Binary BytesBytes in Binary are very much the same as Computer Bytes, although they have slightly different names, and it's 1024 of each that goes into the next tier, rather than 1000. There are still 8 bits in a Byte, but they are named as such:

Bit

Bytes

Kibibytes*

Mebibytes

Gibibytes

Tebibytes

Pebibytes

Exbibytes

Zebibytes

Yobibytes

*The bi is short for Binary, so, Kilo Binary Bytes, Mega Binary Bytes, etc.

Measurements in PhysicsWatts and JoulesWatts are the form of measurement that define the amount of energy use or energy in production, often used to measure light or electricity, named after James Watt. We see watts commonly in hardware/electric stores, or even general stores, a prime example being an n-watt* lightbulb, that you're probably sitting underneath. When you turn on the light-switch, the electricity runs along the wall, and into the light-bulb, where it runs along a thin filament, until it heats up the bulb. The glass orb is there to protect the heat from the oxygen outside, so it does not oxidate. A Watt is equivalent to 1 joule per second, Joules measure, like Watts, heat and electricity, and are often used in mechanics, but they only have one tier of measurement. Watts have 6 tiers not including a singular Watt.

Microwatt

Milliwatt

Kilowatt

Megawatt

Gigawatt

Terawatt

*"n" representing any number, meaning any number of watts.

AmpereAn Ampere, or often shortened to "Amp", is the common measurement for elecricity only. An Amplifier uses Amps to magnify the volume of an instrument, a Guitar, or and Electric Drumkit, but it does not measure the level of Amperes, as the name suggests it should. An Ampere is named after André-Marie Ampère, a French Physicist living in the 18th and 19th century. This measurement only has one tier, and that is itself, it is best realized using a watt balance (see Watts and Joules.) HertzHertz, named after German Physicist Heinrich Hertz, measures the following, heat, electricity, frequency, and current. There are variable applications of Hertz, used to measure the speed of your computer, to measure radiation, sound and sound waves, and etc. Hertz are most commonly seen in sound measuring, and alot of study has gone into them, we now know, for instance, that a child's ear can hear sounds between 16 Hz (hertz) and 20000 Hz, an adult can hear only 20 Hz to 16000 Hz. Hertz come in 21 tiers of measurement, listed from smallest to largest:

Yoktohertz - yHz

Zeptahertz - zHz

Attohertz - aHz

Femtohertz - fHz

Picohertz - pHz

Nanohertz - nHz

Microhertz - µHz

Millihertz - mHz

Centihertz - cHz

Decihertz - dHz

Hertz - Hz

Dekahertz - daHz

Kilohertz - kHz

Megahertz - MHz

Gigahertz - GHz

Terahertz - THz

Petahertz - PHz

Exahertz - EHz

Zettahertz - ZHz

Yottohertz - YHz

Degrees (Celsius)There are two types of Degrees in measurements, Angles, and Temperature, if you want to know about Angles, then see Degrees (Angles) under the Measurements in Maths section. Degrees Celsius, written °C - not ° - is the metric measurement frequently used in Physics - Science - to measure heat and heat energy. It's also used in many other places, in thermometers, weather forecasts (although, mostly Fahrenheit are used, see the section below.) Unlike angles, Degrees Celsius are not limited to a certain number, but there is only a certain amount of heat that can occur before causing a supernova, or before destroying a planet. But, don't worry, that's only if it goes into the thousands, and, the only heat source capable of that amount of heat is the sun. So, just so long as we keep the ozone layer in good piece, it's not going to be too different from the last year. Regardless, it is veryimportant that we do keep the ozone layer in good shape, but that's not the topic of this subject. It is mostly weather reports that don't use Degrees Celsius, they mostly use Fahrenheit, but online weather reports often primarily use Degrees Celsius, and provide a Fahrenheit alternative. See more on the section below on Fahrenheit. FahrenheitThis sub-section on Fahrenheit needs adding upon. DecibelsDecibels (dB) are the standard unit of measurement in sound, namely, measuring volume, rather than frequency (see Hertz.) Although it is the general unit of it's set, it is one tenth of a Bel (B), an appropriate name, perhaps named after a Bell, considering the sound that a bell can produce. A dB is not an actual SI unit, but it is nonetheless a freqent measurement of volume. Some music players/satelite TV boxes display volume in simple numbers, while others properly measure it in Decibels, anything like such reading ndB, rather than just n*, is using the proper method of measuring volume, although it is likely that those that do not use Decibels are simply missing out on the 'dB', and do actually measure the sound properly.

*n means number, meaning it represents whatever number it would be.

Measurements in ChemistrypH (Acidity)The pH level is the level of Acidity in a Chemical, used frequently in Chemistry, and occasionally in biology. It uses a notable solid called pH paper, which looks just like paper, and when dipped in a chemical, it will change colour according how acidic or alkaline the chemical is. There is a pH colour chart to show the level of Acidity and the colour pH paper will turn when dipped in it, the lowest the least acidic, and the highest the most alkaline.

1- Scarlet

2- Dark Red

3- Red

4- Dark Orange

5- Orange

6- Light Orange

7- Pale Orange

8- Yellow

9- Yellow

10- Yellow*

11- Darker Yellow

12- Dark Green

13- Moss Green

14- Lighter Moss Green

15- Darker Moss Green

16- Olive

17- Turquoise

18- Misty Blue

19- Blue

20- Slightly Darker Blue

21- Darker Blue

22- Navy

*The colour difference is almost unnoticeable

When studying chemistry in KS3 and KS4 Science, you'll definitely come across pH/acidity levels and pH paper. Levels of acidity seven or below show acids in the chemical, levels above show alkalinity.

Measurements in MathsDegrees (Angle)In Maths (Math or Mathematics in other countries,) one of the two common measurements you'll often be using, are angles, or Degrees. Degrees are written like °, don't confuse them with °C, this means Degrees Celsius, or Degrees Centigrade, which is temperature. They always work around a circle, although some angle-measureres (protractors) are in a semi-circle, and only measure 180°. There are three types of angles, acute, obtuse, and reflex, an acute angle is 50° or less, an obtuse angle is from 51° to 180°, and a reflex goes any further then that up to 360°. It might sound like a complicated measurement when first introduced to it at a young age, but, all you really need to know about angles in school is, the three types of angles, how to measure angles, and the fractions compared to angles, which I'm just going to explain now. A full protractor (a complete circle) will have 1° to 360° on it, this doesn't sound easy to compare to fractions at first, but, actually, 90° is a quarter, 180° is exactly half, 270° is three quarters, and 360° is the full thing. If you want to delve deeper, and find one twelth (1/12,) then, divide 90°, which is one quarter, into 3, and you get 30°. There are 3 30° in every quarter, 3*4=12, so, 30° must be one twelth. For information of Degrees Celsius - or Centigrade, see Degrees (Celsius) under the section of Measurements in Physics. Measurements in TimePhilosophyTime, along with number, are the oldest measurements in the history of the Earth, unlike Imperial and Metric, they have never changed, at least, not according to the records we have kept - so as not to rule out the possibility that, beyond our recordings of history, a different unit of time was used. Every day, 60 seconds pass in a minute, 60 minutes pass in an hour, and - although this has been argued, the business on leap years does come up - 24 hours in a day, a day referring to a day and a night, not just a day. Some say this comes under the calendar, and not under the time, but days also come under weeks, weeks under months, months under years, and etc. The full scale of time measurements are the most commonly known, as with all measurements, we could go on to say, beyond a nanosecond, a picosecond or femtosecond, or yoktosecond, but there are rare usages of these, as with all units of measurements sharing these types of prefixes. Returning to the subject, time as attracted alot of philosophy in it's wake, among the measurement. Debates often arise about the credibility of time, and whether they are a penny perfectly slotted in history, or merely drawings upon the walls of existence. Time, as some argue, is a thumbnail sketch, man's way of placing upon the running days some form of progression, which eventually grew to become the known form of progression through the day. So, basically, were a time machine to ever have been built, you couldn't say "Go backwards one hour," because, an hour is just a human way of saying 'this many moments', and it would travel along the blank timeline plotted out at the start of the universe. There are no people able to make credible doubts about this philosophical theory, as, there is no man alive who can really determine if time outlines the universe, or is part of the universe. Standard UnitsIt is worthless recording any time measurement smaller than a nanosecond, as, with most forms of measurement, nobody will wish to use them, so, below are the tiers of measurement from a nanosecond above.

Nanosecond

Microsecond

Millisecond

Second

Minute

Hour

Day

Week

Fortnight

Month

Year

Decade

Century

Millenium*

*When made plural, this becomes 'Millenia'.

CalendarThe Calendar is something we move through all the time, every hour of the day, every day of the week, every week of the year, and so on. It can be said that it is a measurement of time, and merely a slow one, but others argue that Calendar is not relative to time at all, and that it is something of it's own. The Calendar that is most common around the world, and that it is likely you use, is called the Gregorian Calendar. In that Calendar, there are 365 days, however, every four years, on a leap year, an extra day is added, and it becomes 366 days. The extra day is added to February, which has 28 days, except on a Leap Year, where it has 29, nonetheless, it still contains the lowest number of days next to the other months. All the other months last either 30 or 31 days. It goes as follows.

January: 31

February: 28/29

March: 31

April: 30

May: 31

June: 30

July: 31

August: 31

September: 30

October: 31

November: 30

December: 31

Measurements in EconomyPopulationWhen looking at Countries, their politics and economy, their statistics and data, we often focus on the population of that country, and, regarding stereotype, we tend to judge a country via it's population, namely, some people would say a lowly populated place is quite a poor place, before checking the wealth of that country. Population, throughout history, has generally fluctuated because of the rate of reproduction, because of wars, and battles, and mysterious illnesses. Modern days, decrease in population is seen as a result of more modern dilemnas, floods, cyclones, lightning storms, and other natural disasters to do with Global Warming, pollution also crops up as a people-and-animal-killer across numerous places. Other causes are illnesses - that we, nowadays, know a little more about than, say, a century ago - such as the foot-and-mouth outbreak, and other rapid-spreading diseases. One famous decrease of the population occurred from the Black Death, or Bubonic Plague, which claimed the lives of approximately 75m (75 million people,) with an estimated 25-50m in Europe alone. The disease, we now know, was spread by the fleas on black rats, but, at the time, people believed it was a punishment from God.

This section on Economy needs adding upon.

Answer 2

Centimeters, Kilometers, Millimeters, Meters

and Decimeters.