From 1032d5158b7afd18cf1952d78615a301bb9a310e Mon Sep 17 00:00:00 2001 From: James Su Date: Thu, 19 Dec 2019 00:20:24 +0000 Subject: [PATCH] Update Unit 3: Physics.md --- Grade 10/Science/SNC2DZ/Unit 3: Physics.md | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/Grade 10/Science/SNC2DZ/Unit 3: Physics.md b/Grade 10/Science/SNC2DZ/Unit 3: Physics.md index aabf3e8..2eb1122 100644 --- a/Grade 10/Science/SNC2DZ/Unit 3: Physics.md +++ b/Grade 10/Science/SNC2DZ/Unit 3: Physics.md @@ -2,7 +2,7 @@ ## Light - `Light`: Electromagnetic radiation/waves, as light interacts with both electricity and magnets - - Light travels at ~**3.0*108<\sup>** + - Light travels at $`3.0 \times 10^8`$ - `Energy`: Ability to do work - `Work`: Ability to move matter in space - Energy can be transferred and transformed, but not destroyed @@ -70,7 +70,7 @@ - `Concave mirror`: Curved mirror curving inwards in the direction of incident rays, like a cave - `Convex mirror`: Curved mirror curving away from incident rays, like back of a spoon - + - `Principal axis`: $`PA`$, line perpendicular to mirror when it hits it - `Centre of curvature`: $`C`$, point where the centre of the circle would be if mirror was extended to a full circle @@ -86,17 +86,17 @@ | **Object location** | **Size** | **Attitude** | **Location** | **Type** | | :--- | :--- | :--- | :--- | :--- | -| Farther than C | Smaller than object | Inverted | Between C and F | Real | -| At C | Same as object | Inverted | On C | Real | -| Between C and F | Larger than object | Inverted | Farther than C | Real | -| At F | N/A, lines do not converge | | | | -| Between F and V | Larger than object | Upright | Behind mirror | Virtual | +| Farther than $`C`$ | Smaller than object | Inverted | Between $`C`$ and $`F`$ | Real | +| At $`C`$ | Same as object | Inverted | On $`C`$ | Real | +| Between $`C`$ and $`F`$ | Larger than object | Inverted | Farther than $`C`$ | Real | +| At $`F`$ | N/A, lines do not converge | | | | +| Between $`F`$ and $`V`$ | Larger than object | Upright | Behind mirror | Virtual | **Characteristics of convex mirror images** | **Object location** | **Size** | **Attitude** | **Location** | **Type** | | :--- | :--- | :--- | :--- | :--- | -| Anywhere | Smaller than object | Upright | Between F and V/behind mirror | Virtual | +| Anywhere | Smaller than object | Upright | Between $`F`$ and $`V`$/behind mirror | Virtual | ## Refraction - Speed of light depends on its medium @@ -108,10 +108,10 @@ - **Fast -> slow** medium: Refracts **towards** normal - `Angle of refraction`: Angle of light after interface, relative to normal - Index of refraction: speed of light in vacuum / speed of light in medium - - $`n = \frac{c}{v}`$ - - $`n_{1}sin\theta_{incidence} = n_{2}sin\theta_{refraction}`$ + - $`n = \dfrac{c}{v}`$ + - $`n_1 \sin\theta_{\text{incidence}} = n_2 \sin\theta_{\text{refraction}}`$ - Where $`n_{1}`$ and $`n_{2}`$ are the refractive indexes of two different media - - Snell's law: $`\frac{sin\theta_{2}}{sin\theta_{1}} = \frac{v_{2}}{v_{1}} = \frac{n_{1}}{n_}2} + - Snell's law: $`\dfrac{\sin\theta_2}{\sin\theta_1} = \dfrac{v_2}{v_1} = \dfrac{n_1}{n_2}`$ ## Total internal reflection - `Critical angle`: Angle of incidence that causes refracted ray to be perpendicular to normal