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Questions and Answers
What is the meter defined as?
In what year was the meter originally defined?
How many centimeters are in one meter?
What is the meter used as a standard unit of length in?
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What is the kilometer equal to?
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What is the nanometer equal to?
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Study Notes
Definition
- A meter is a unit of length in the International System of Units (SI)
- It is defined as the distance traveled by light in vacuum in 1/299,792,458 of a second
History
- The meter was originally defined in 1791 as one ten-millionth of the distance from the equator to the North Pole
- In 1889, the International Prototype Meter was established as the standard meter
- In 1960, the meter was redefined in terms of the wavelength of light
- In 1983, the current definition based on the speed of light was adopted
Conversions
- 1 meter = 100 centimeters (cm)
- 1 meter = 1000 millimeters (mm)
- 1 meter = 3.2808 feet (ft)
- 1 meter = 39.370 inches (in)
Uses
- The meter is used as a standard unit of length in many fields, including:
- Science and engineering
- Construction and architecture
- Everyday applications (e.g. measuring rooms, furniture, etc.)
- The meter is also used as a base unit for other units of measurement, such as:
- Kilometer (km) = 1000 meters
- Micrometer (μm) = 0.000001 meters
- Nanometer (nm) = 0.000000001 meters
Definition of Meter
- Meter is a unit of length in the International System of Units (SI)
- Defined as the distance traveled by light in vacuum in 1/299,792,458 of a second
History of Meter
- Originally defined in 1791 as one ten-millionth of the distance from the equator to the North Pole
- International Prototype Meter established as the standard meter in 1889
- Redefined in terms of the wavelength of light in 1960
- Current definition based on the speed of light adopted in 1983
Meter Conversions
- 1 meter equals 100 centimeters (cm)
- 1 meter equals 1000 millimeters (mm)
- 1 meter equals 3.2808 feet (ft)
- 1 meter equals 39.370 inches (in)
Uses of Meter
- Standard unit of length in:
- Science and engineering
- Construction and architecture
- Everyday applications
- Base unit for other units of measurement, including:
- Kilometer (km) = 1000 meters
- Micrometer (μm) = 0.000001 meters
- Nanometer (nm) = 0.000000001 meters
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Description
Learn about the definition of the meter as a unit of length, its history, and how it has been redefined over time.
