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The centimetre (SI symbol: cm) is a unit of length in the metric system equal to 10−2 metres ( 1 100 m = 0.01 m). To help compare different orders of magnitude, this section lists lengths between 10 −2 m and 10 −1 m (1 cm and 1 dm). 1 cm – 10 millimetres. 1 cm – 0.39 inches. 1 cm – edge of a square of area 1 cm 2.
The units of measurement are the units that are used to represent physical quantities like length, mass, temperature, current, area, volume, intensity, etc. We use two systems of units of measurement - metric and imperial. In the early days, hand span, arm span, and foot span were used as units of measurement. ☛ Related Topics: Feet to Inches
It's diameter is actually 1.392×10 9 meters, or 1.392 gigameters, or simply 1.392 Gm. Some Interesting Facts: The smallest length with any meaning is the Planck length (about 1.6 x 10 -35 meter) Quarks are very very small (less than 10 -19 meters) A Hydrogen atom is about 100 picometers in diameter (1.06 x 10 -10 meters)
For any measurement, the unit being used must be stated to give an understanding of the scale of the measurement. For example, distance can be measured in kilometres or in miles.
The angstrom (symbol Å) is a unit of distance used in chemistry and atomic physics equal to 100 pm. The micron (μ) is a unit of distance equal to one micrometre (1 μm). The basic module (M) is a unit of distance equal to one hundred millimetres (100 mm). The myriametre (mym) is a unit of distance equal to ten kilometres (10 km).
Review the size of millimeters, centimeters, meters, and kilometers and how to convert between them. Then, try some practice problems.
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Aug 8, 2024 · The smallest unit of length is the Fermi, which is equivalent to 10^-15 meters. Other units of length include the micron (10^-6 meters), Angstrom (10^-10 meters), and nanometer (10^-9 meters). The SI unit for length is the meter (m), which serves as the standard unit of measurement.
