What is the difference between the metric system and the SI unit of measurements?

Answer 1

Nothing. The SI is the current metric system.

Answer

The 'metric' system is a generic name for a number of different systems based upon multiples of 10. The current, rationalised, metric system is called SI. Previous versions included the mksA (metre, kilogram, second, ampere) system and the cgsA (centimetre, gram, second, ampere) system.

Answer 2

English units are based on lots of arbitrary things (a king's foot, the width of a thumb).

The SI (metric) system is based on a lot of equally arbitrary assumptions (an erroronious calculation of the Earth's circumference).

Neither is "better", but most of the world uses SI, so why be different just for the sake of being stubborn?

Answer 3

The SI and English measurements are two different ways of measuring the same things. To convert one to the other, see the related link below to the General Tables of Units of Measurements from the National Institute of Standards and Technology.

Answer 4

There is no such thing as the English System of Measurement.

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If you mean the British Imperial system of measurement the differences are the units of measure used, and magnitudes of fractions or multiples.

If you mean the US Standard Measure (or Old English Measuring System) the same or similar applies.

In the metric system, on which the SI was based a the magnitudes of difference between measurements are based on the number 10. Thus a kilometer is 1000 meters, a deciliter is 1/10 of a liter, and so on.

In the Imperial measure a gallon is equal to the volume of 10 lbs. of water, that's where any similarity ends. the gallon can be divided into 4 quarts, 5 fifths, 8 pints, 20 cups, 16 cups(half pint or 1.25 cup), 160 ounces, 320 tablespoons, or 960 teaspoons. The same holds true for units of length, area and mass.

In the US measuring system only volume measures are different than the Imperial system. A gallon is based on the old Wine Gallon where a Hogshead weighed 525 lbs. of water (or 500 lbs of wine) and also contained the volume of 63 gallons. This makes a gallon the volume of 8.33 lbs of water, smaller than an Imperial gallon. 4 hogsheads equal a tun or 2100 lbs. of water (or 2000 lbs of wine), close to a ton in weight. The US also has a dry volume measure, which is based on a shipping ton of 40 cubic feet, assumed to be equivalent to 2000 lbs. of dry goods. This is broken down into 32 bushels, 128 pecks, or 256 gallons (which are larger than a wine gallon).

Answer 5

The main difference is that the SI units are used by all developed countries. Also, it consists of a standard measures - not like the gallon: which has one measure in the US and another in the UK and Commonwealth countries.

The SI system is a coherent system of measurement in which different units for the same characteristic are related to one another by powers of ten, and which has a common set of prefices which allow simple conversion through 48 orders of magnitude: a yottametre is 10^48 yoctometres, a yottasecond is 10^48 seconds and so on. There is no need to learn lots and lots of conversion factors as in the US customary system:

• 2 pints in a quart
• 3 feet in a yard
• 4 quarts in a gallon
• 6 feet in a fathom
• 8 furlongs in a mile
• 9 square feet in a square yard
• 12 inches in a foot
• 14 pounds in a stone
• 16 ounces in a pound

and so on.

Answer 6

The customary units are ones we use everyday. metric units usually have the word meter on it. my teacher taught me meter metric no meter no metric.

Answer 7

The SI unit is based on meter-kilogram-second system and the British is based n foot-pound-system.

Answer 8

For example, a meter is a bit more than a yard, while a kilogram is approximately 2.2 pounds.

Answer 9

the answer is i dont know

Answer 10

ruler tells all