Update 'docs/sph3u7.md'
This commit is contained in:
parent
2ba7f391f1
commit
5cb0a7de47
@ -123,7 +123,7 @@ Uncertainties are stated in the form of [value] ± [uncertainty]. A value is onl
|
|||||||
To determine a measurement's absolute uncertainty, if:
|
To determine a measurement's absolute uncertainty, if:
|
||||||
|
|
||||||
- the instrument states its uncertainty, use that.
|
- the instrument states its uncertainty, use that.
|
||||||
- an analog instrument is used, the uncertainty is half of the smallest scale. (eg if a ruler can measure to $0.1cm$, the uncertainty would $0.005 cm$)
|
- an analog instrument is used, the uncertainty is half of the smallest scale.
|
||||||
- a digital instrument is used, the last reported digit is uncertain by 1 at its order of magnitude.
|
- a digital instrument is used, the last reported digit is uncertain by 1 at its order of magnitude.
|
||||||
|
|
||||||
!!! example
|
!!! example
|
||||||
@ -163,6 +163,7 @@ $$\text{intercept}_{\text{best fit}} ± \frac{\text{intercept}_{\max} - intercep
|
|||||||
!!! note "Definition"
|
!!! note "Definition"
|
||||||
- **Scalar:** A physical quantity with a numerical value (magnitude) and a unit.
|
- **Scalar:** A physical quantity with a numerical value (magnitude) and a unit.
|
||||||
- **Vector:** A physical quantity with a numerical value (magnitude), a unit, and a **direction.**
|
- **Vector:** A physical quantity with a numerical value (magnitude), a unit, and a **direction.**
|
||||||
|
- The **minimum magnitude** for any vector must be $`\ge 0`$
|
||||||
|
|
||||||
??? example
|
??? example
|
||||||
- Scalar quantities include speed, distance, mass, temperature, pressure, time, frequency, current, voltage, and more.
|
- Scalar quantities include speed, distance, mass, temperature, pressure, time, frequency, current, voltage, and more.
|
||||||
@ -177,8 +178,6 @@ $$\vec{a} = (1, 1)$$
|
|||||||
- The **magnitude** of a vector can be expressed as the absolute value of a vector.
|
- The **magnitude** of a vector can be expressed as the absolute value of a vector.
|
||||||
$$|\vec{a}| = 1 \text{ m}$$
|
$$|\vec{a}| = 1 \text{ m}$$
|
||||||
|
|
||||||
!!! info "Reminder"
|
|
||||||
Remember that the **minimum magnitude** for any vector must be $`\ge 0`$
|
|
||||||
|
|
||||||
### Adding/subtracting vectors diagrammatically
|
### Adding/subtracting vectors diagrammatically
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user