What are metric and imperial unit of measurement?

Answer 1

The two systems use different units, with different sizes and different names, for mass, length,

area, volume, capacity, speed, acceleration, energy, torque, weight, and force. Their units of

time, however, are the same.

Answer 2

The Metric System of Measurement uses the units of grams and meters and the prefixes of centi, kilo, and milli for magnitude orders. The Imperial System of Measurement or The British Imperial uses the measuring units of inches, feet, miles,Êand pounds.

Answer 3

The metric and imperial are systems of measurement. The imperial system units of measures are grouped into arbitrary base units, such 3, 8, 12, 16, 32, etc., while the metric system is always in base ten.

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Unlike the metric system, the imperial system has different standards in different regions. For example, a gallon in the USA is smaller than a gallon in the UK1, whereas a litre is exactly the same size everywhere.

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The Imperial system is based more on human traits; for example, one foot has been adapted from the standard foot size in European places. The imperial system is very difficult to remember and use, because it has arbitrary definitions. For example, for imperial distance measurement there are:

• 12 inches in a foot
• 3 feet in a yard
• 220 yards in a furlong 2.
• 8 furlong in a mile
• 3 miles in a league (this unit is no longer in use in any nation.)

  The metric system always uses base 10, which makes remembering and usage much easier. For example, for metric distance measurements there are:

• 10 centimetres in a decimetre
• 10 decimetres in a metre
• 10 metres in a decameter
• 10 decameters in a hectometre
• 10 hectometer in a kilometer

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Because the metric system is so much easier to use, it is the standard measurement system for every country in the world except for Burma, Liberia, and the USA.

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The metric system originally based measurements around the properties of the earth, for example, 0 degrees Celsius is water's freezing point, and 100 degrees Celsius is water's boiling point

Daniel Gabriel Fahrenheit (1686-1736) was the German physicist who invented the alcohol thermometer in 1709, and the Mercury thermometer in 1714. In 1724, he introduced the temperature scale that bears his name - Fahrenheit Scale. For those who know nothing about Imperial, here is a history lesson on Fahrenheit. From Wikipedia. According to an article Fahrenheit wrote in 1724,[6] he based his scale on two reference points of temperature.[7] The zero point is determined by placing the thermometer in brine: he used a mixture of ice, water, and ammonium chloride, a salt. This is a frigorific mixture which automatically stabilizes its temperature at 0 °F. (A mixture of ice and water also stabilizes, either freezing or melting at 32 °F though Fahrenheit did not use this point in defining his temperature scale). The second point, 100 degrees, was the level of the liquid in the thermometer when held in the mouth or under the armpit of his wife - subsequent refinements. Fahrenheit noted that, using this scale, water boils at about 212 degrees.[7]

Later, work by other scientists observed that water boils about 180 degrees higher than the freezing point and decided to redefine the degree slightly to make it exactly 180 degrees higher.[6] It is for this reason that normal human body temperature is 98.6 on the revised scale (whereas it was 100 on Fahrenheit's original scale).[8]

According to a letter Fahrenheit wrote to his friend Herman Boerhaave,[9] his scale was built on the work of Ole Rømer, whom he had met earlier. In Rømer's scale, the two fixed reference points are that brine also freezes at 0 degrees and water boils at 60 degrees. He observed that, on this scale, water freezes at 7.5 degrees. Fahrenheit multiplied each value by four in order to eliminate fractions and increase the granularity of the scale (resulting in 30 and 240 degrees, respectively). He then re-calibrated his scale between the freezing point of water and normal human body temperature (which he observed to be 96 degrees); he adjusted the scale so that the melting point of ice would be 32 degrees, so that 64 intervals would separate the two, allowing him to mark degree lines on his instruments by simply bisecting the interval six times (since 64 is 2 to the sixth power).[10]

and one litre of water weighs 1 kilogram. 1 metre is 1/10,000,000 the distance from the equator to the North Pole, etc. Today, the metric system has very precise definitions. For example, a meter is now defined as the distance light travels in a vacuum in 1/299,792,458 of a second.

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Because the imperial and metric system have different and disparate origins, the conversion method between two lengths, weights, or temperatures are often difficult to remember.

1. The British invented the Gallon in 1824 by weighing 10 pounds of distilled water with brass weights with the barometer standing at 30 Inches and the thermometer at 62 Fahrenheit.
2. From the Concise oxford dictionary: 'Furlong:' length of a furrow in a common field. 'Furrow': a narrow trench made in the ground by a plough. This was the length of land a team of ox could plough before having to rest. Bare in mind, that this unit goes back thousands of years when we were all farmers. So Furlong means furrows length.

Answer 4

The basic things we measure are Length, Mass, and Time. In the Metric system also known as the CGS system, they are Centimeter, Gram, and Second. In the Imperial or British system also known as the FPS system, they are Foot, Pound, and Second. The Second, the unit of time is the same in both systems.