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GCSE Combined Science · key term
A number written as ten raised to an exponent. Positive exponents represent repeated multiplication by ten; negative exponents represent reciprocals, such as .
Used by OCR
Specification WS1.4d · Biology Paper 1, Biology Paper 2, Chemistry Paper 1, Chemistry Paper 2, Physics Paper 1, Physics Paper 2
Revise: Orders of Magnitude and PrefixesTo express a prefixed measurement using a power of ten, replace the prefix with its multiplier and retain the unit.
A negative power of ten means a small positive fraction, not a negative quantity.
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