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GCSE Design and Technology · key term
A word or symbol placed before a unit to indicate a multiplying factor. For example, kilo means , so one kilometre equals 1000 metres.
Used by Edexcel
Specification 1b · Paper 1
Revise: SI Units and Orders of MagnitudeThe kilogram is the SI base unit for mass, even though its name already contains the prefix kilo. When converting between kg, g and mg, use the relationships in the table.
Prefix symbols are case-sensitive: M means mega, m means milli and k means kilo.
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