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Chapter 6: Problem 10

What is the meaning of the metric system abbreviation km?

Short Answer

Expert verified
The abbreviation 'km' stands for 'kilometer', meaning one thousand meters.

Step by step solution

01

Understanding Units of Measurement

To solve the problem, we first need to understand that the "metric system" is a decimal-based system of measurement that is used worldwide. It includes units such as meters, liters, and grams, which are used for measuring various quantities like length, volume, and mass.
02

Identifying the Abbreviation

The abbreviation 'km' stands for 'kilometer'. It is important to recognize the prefixes and base units in the metric system.
03

Breaking Down the Abbreviation

The prefix 'kilo-' in the metric system means one thousand. Therefore, 'kilometer' is equivalent to 'one thousand meters'.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Units of Measurement
Units of measurement are essential for quantifying various aspects of the world around us. They allow us to measure and compare different quantities like length, volume, and mass.
The metric system is a standardized system of units based on the meter, the liter, and the gram. These serve as the base units for length, volume, and mass respectively.
For example, when we measure the length of an object, we might use meters for everyday situations or millimeters for more precise measurements.
  • Length is typically measured in meters (m).
  • Volume is measured in liters (L).
  • Mass is measured in grams (g).
Understanding these units helps us describe and communicate size and quantity in a consistent and reliable way globally.
Decimal-Based System
The metric system is built on a decimal-based structure, making it straightforward to understand and use.
This means it operates on powers of ten, which is convenient for calculations and conversions, as you can often move a decimal point to shift between units.
For instance, converting between meters, centimeters, and millimeters is as simple as shifting the decimal point:
  • 1 meter = 100 centimeters = 1,000 millimeters.
  • This simplicity is due to the uniform scaling factor of 10.
This system eliminates the need for cumbersome fractions often found in other systems, making it accessible for learners and professionals alike.
It fosters accuracy and uniformity while keeping calculations manageable.
Metric Prefixes
Metric prefixes are key to understanding the metric system.
They provide an easy method to express large or small quantities by using predefined prefixes attached to the base units.
These prefixes represent specific powers of ten. Here are some common metric prefixes:
  • 'Kilo-' means 1,000 times the base unit, such as in kilometer (1 kilometer = 1,000 meters).
  • 'Centi-' means one hundredth of the base unit, similar to the centimeter (1 centimeter = 0.01 meters).
  • 'Milli-' indicates one thousandth of the base unit, seen in millimeter (1 millimeter = 0.001 meters).
By using these prefixes, you can easily convey a wide range of measurements without changing the basic unit.
This facilitates communication and comprehension across different fields and languages.

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Most popular questions from this chapter

Use the conversion \(1 \mathrm{~kg}=2.2 \mathrm{lb}\) to convert 326 ounces to kilograms, rounded to the nearest tenth of a kilogram.

Use the conversion \(1 \mathrm{yd}=0.9144 \mathrm{~m}\) to convert 41 yards to centimeters, rounded to the nearest tenth of a centimeter.

Use the conversion \(1 \mathrm{mi}=1.6093 \mathrm{~km}\) to convert \(8.3\) kilometers to miles, rounded to the nearest tenth of a mile.

Tallest tower. The world's tallest tower in Dubai has 160 floors at a height of 2,717 feet. Convert the height of the tower to the nearest tenth of a meter. Associated Press-Times-Standard \(02 / 09 / 10\) World's tallest tower closed \(a\) month after opening.

Use the conversion \(1 \mathrm{qt}=0.946 \mathrm{~L}\) to convert 24 quarts to litres, rounded to the nearest tenth of a litre.
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