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phys: improve metric prefixes and add physical quantites review

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eggy 2020-09-24 20:43:48 -04:00
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docs/sph3u7.md
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@ -4,6 +4,9 @@ The course code for this page is **SPH3U7**.
## 1.1 - Measurements in physics ## 1.1 - Measurements in physics
!!! reminder
All physical quantities must be expressed as a **product** of a magnitude and a unit. For example, ten metres should be written as $10 \text{ m}$.
### Fundamental units ### Fundamental units
Every other SI unit is derived from the fundamental SI units. Memorise these! Every other SI unit is derived from the fundamental SI units. Memorise these!
@ -20,7 +23,7 @@ Every other SI unit is derived from the fundamental SI units. Memorise these!
### Metric prefixes ### Metric prefixes
Every SI unit can be expanded with metric prefixes. Every SI unit can be expanded with metric prefixes. Note that the difference between many of these prefixes is $10^3$.
!!! example !!! example
milli + metre = millimetre ($10^{-3}$) m milli + metre = millimetre ($10^{-3}$) m