Question

define one standard kilogram

Answer 1

Answer:

The kilogram is the Standard International (SI) System of Units unit of mass. ... It was originally defined as the mass of one liter (10-3 cubic meter) of pure water. At the Earth's surface, a mass of 1 kg weighs approximately 2.20 pounds (lb).

Answer 2

Answer:

Kilogram:

• The kilogram (kg) is the System International or SI unit of mass measurement.
• It is defined as the mass of a particular international prototype made of platinum-iridium.
• The platinum-iridium cylinder is stored in an air tight jar at the International Bureau of Weights and Measures, at Serves near Paris, France.
• It is also defined by taking the fixed numerical value of the Planck constant(h) when it is expressed in J.s a unit equal to kg m² s⁻¹.
• It was initially defined as the mass of one liter of pure water.
• One kilogram is equal to 1000 grams.

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