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Quiz "weight: Metric system"

weight: Metric system

the basic SI unit of length; the length of the path travelled by light in free space during a time interval of 1/299 792 458 of a second. In 1983 this definition replaced the previous one based on krypton-86, which in turn had replaced the definition based on the platinum-iridium metre bar kept in Paris

weight: Metric system

one thousandth of a metre

weight: Metric system

one hundredth of a metre

weight: Metric system

a unit of area equal to 100 sq metres or 119.599 sq yards; one hundredth of a hectare

weight: Metric system

one thousand metres, equal to 0.621371 miles
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