Metric System in Everyday Applications
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Questions and Answers

When did the French government require the use of the metric system as its standard for measurements?

  • 1700s
  • 1988
  • 1840s (correct)
  • 1790
  • In which country is the use of the metric system not officially adopted?

  • United Kingdom
  • United States (correct)
  • Canada
  • France
  • What is the typical unit of measurement used to report speed limits in the United States?

  • Yards per minute
  • Miles per hour (correct)
  • Feet per second
  • Kilometers per hour
  • What is the unit of measurement used to report active ingredients in pharmaceuticals in the United States?

    <p>Milligrams</p> Signup and view all the answers

    What is the abbreviation 'SI' an abbreviation for in the context of the metric system?

    <p>Systeme International</p> Signup and view all the answers

    What is the base unit of measurement used in the CGS system?

    <p>Centimeter</p> Signup and view all the answers

    In which field is the metric system not commonly used in the United States?

    <p>Business and commerce</p> Signup and view all the answers

    What is the unit of measurement used to report liquids in the United States?

    <p>Gallons</p> Signup and view all the answers

    What was the outcome of the 1988 legislation aimed at converting the United States to a metrics-based society?

    <p>The program ultimately fell through</p> Signup and view all the answers

    In which country is the metric system the most widely used?

    <p>Globally</p> Signup and view all the answers

    Study Notes

    What is the Metric System?

    • The metric system is a decimal-based measurement system used internationally, with basic units of grams (weight), meters (length), and liters (volume).
    • It is used to measure various quantities, including time, amount of a substance, temperature, electrical current, and light intensity.

    Examples of Metric System Measurements

    • A half-marathon is 21.0975 kilometers long.
    • The average weight of an adult human is between 60 and 80 kilograms.
    • Water boils at 100 degrees Celsius at sea level.

    On What Is the Metric System Based?

    • The metric system was first established around a base unit called the meter, derived from the Greek "metron," meaning "measure".
    • The original meter was designed to be a unit that could be divided into smaller or larger units as needed to represent any object's length.

    Learning the Metric System

    • The easiest way to learn the metric system is by learning its prefixes, which can be multiplied or divided by powers of 10 to obtain larger or smaller units.
    • The prefixes, from largest to smallest, are: kilo-, hecta-, deca-, base unit, deci-, centi-, and milli-.

    List of Metric Units

    • Mass: gram (g)
    • Distance: meter (m)
    • Time: second (s)
    • Amount of a chemical substance: mole (mol)
    • Temperature: degree Celsius (C)
    • Electrical current: ampere, or amp (A)
    • Light intensity (luminosity): candela (cd)
    • Volume: liter (L)

    History of the Metric System

    • The metric system was first developed to establish standard units of measurement, particularly important for trade and communication across cultures.
    • It was officially adopted in France in 1790, but its use did not become widespread until the 1840s.
    • Despite its international use, the United States never officially adopted the metric system as its standard system of measurement.

    Uses of the Metric System

    • The metric system is commonly used in scientific fields, such as chemistry and physics, due to its easy conversion and straightforward application.
    • It is also used in mechanical fields, electrical engineering, and pharmaceuticals.
    • Many countries, excluding the United States, use the metric system as their official system of measurement.

    Fun Facts About the Metric System

    • The metric system is often abbreviated as "SI", which stands for "Systeme International" or the "International System" of units.
    • The original meter bar was not exactly one meter long, but was off by a fraction of a millimeter.
    • The metric system is the most widely used measurement system globally.

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    Description

    Jessica is trying to fix her washing machine, but she encounters an issue with socket sizes. Learn how the metric system is used in everyday applications like this

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