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Physics Online
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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.
Unit prefixes
This video introduces prefixes that are used to describe the size of a measurement. For example, the prefix m is called milli and represents 1/1000 = 0.001 = 10-3.
The following prefixes are described:
milli (m) - 10-3
micro (µ) - 10-6
nano (n) - 10-9
pico (p) - 10-12
femto (f) - 10-15
centi (c) - 102
kilo (k) - 103
mega (M) - 106
giga (G) - 109
terra - 1012
There is a mistake in this video. Can students identify it? Terra is written as 102.
NB: centi is also known as hecto (SI).
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