Difference between revisions of "Unit Prefix"
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: A millilitre is 1000 times smaller than an [[litre]]. | : A millilitre is 1000 times smaller than an [[litre]]. | ||
: A microvolt is 1000,000 times smaller than a [[volt]]. | : A microvolt is 1000,000 times smaller than a [[volt]]. | ||
| + | |||
| + | ==Key Stage 4== | ||
| + | ===Meaning=== | ||
| + | A '''unit prefix''' is a word used in front of a [[unit]] that changes its size. | ||
| + | |||
| + | ===About Unit Prefixes=== | ||
| + | There are several '''unit prefixes''' you should know: | ||
| + | *[[mega]] (M) - 1000,000 times bigger. (10<sup>6<sup>) | ||
| + | *[[kilo]] (k) - 1000 times bigger. (10<sup>3<sup>) | ||
| + | *[[deci]] (d) - 10 times smaller. (10<sup>-1<sup>) | ||
| + | *[[centi]] (c) - 100 times smaller. (10<sup>-2<sup>) | ||
| + | *[[milli]] (m) - 1000 times smaller. (10<sup>-3<sup>) | ||
| + | *[[micro]] (µ) - 1000,000 times smaller. (10<sup>-6<sup>) | ||
| + | *[[nano]] (n) - 1000,000,000 times smaller. (10<sup>-9<sup>) | ||
| + | |||
| + | ===Examples=== | ||
| + | : A megawatt is 1000,000 times bigger than a [[watt]]. | ||
| + | : A decimetre is 10 times smaller than a [[metre]]. | ||
| + | : A millilitre is 1000 times smaller than an [[litre]]. | ||
| + | : A nanovolt is 1000,000,000 times smaller than a [[volt]]. | ||
Revision as of 14:12, 21 March 2019
Contents
Key Stage 3
Meaning
A unit prefix is a word used in front of a unit that changes its size.
About Unit Prefixes
There are several unit prefixes you should know:
- kilo (k) - 1000 times bigger.
- centi (c) - 100 times smaller.
- milli (m) - 1000 times smaller.
- micro (µ) - 1000,000 times smaller.
Examples
- A kilowatt is 1000 times bigger than a watt.
- A centimetre is 100 times smaller than a metre.
- A millilitre is 1000 times smaller than an litre.
- A microvolt is 1000,000 times smaller than a volt.
Key Stage 4
Meaning
A unit prefix is a word used in front of a unit that changes its size.
About Unit Prefixes
There are several unit prefixes you should know:
- mega (M) - 1000,000 times bigger. (106)
- kilo (k) - 1000 times bigger. (103)
- deci (d) - 10 times smaller. (10-1)
- centi (c) - 100 times smaller. (10-2)
- milli (m) - 1000 times smaller. (10-3)
- micro (µ) - 1000,000 times smaller. (10-6)
- nano (n) - 1000,000,000 times smaller. (10-9)