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4 changes: 3 additions & 1 deletion physics/notes/circuits/Ohm's Law/index.html
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972 changes: 972 additions & 0 deletions physics/notes/circuits/kirchoff/index old.html

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4 changes: 3 additions & 1 deletion physics/notes/circuits/power/index.html
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8 changes: 4 additions & 4 deletions physics/notes/electrostatic/coulomb/index.html
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<meta name="description" content="Notes for a high school physics course.">
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Expand Down Expand Up @@ -132,9 +134,7 @@ <h2 class='underlined' id='Coulombs-Law'>Coulomb's Law</h2>
but the French physicist Charles-Augustin de Coulomb is given credit for first publishing the law in 1785.
</p>
<div class='definition'>
<svg style="display: block; margin: auto" width="400" height="120" class='svgDiagram' version="1.1" xmlns="http://www.w3.org/2000/svg"
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4 changes: 3 additions & 1 deletion physics/notes/electrostatic/electricfields/index.html
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4 changes: 3 additions & 1 deletion physics/notes/electrostatic/potential/index.html
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<meta name="description" content="Notes for a high school physics course.">
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10 changes: 7 additions & 3 deletions physics/notes/energy/1-intro/index.html
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<meta charset="UTF-8">
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Expand Down Expand Up @@ -293,7 +295,7 @@ <h1>$$U_{g} = mgh$$</h1>
isn't consistant, but we can still use it to find a
<strong>change in gravitational potential energy</strong>.</p>
<div class='example'>
<svg width="200" height="200" viewbox="-30,0,150,200" class='svgDiagram center' version="1.1" xmlns="http://www.w3.org/2000/svg">
<svg width="200" height="200" viewbox="-30,0,150,200" class='center' version="1.1" xmlns="http://www.w3.org/2000/svg">
<rect id='ground' x="-50" y="160" width="400" height="200" style="fill:#cba" />
<rect x="0" y="0" width="60" height="60" style="stroke:black;stroke-width:2;fill:#fdd" />
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Expand All @@ -305,6 +307,7 @@ <h1>$$U_{g} = mgh$$</h1>
<text x="80" y="155" fill="black" text-anchor="start">y = 0m</text>
<text x="5" y="180" fill="black" text-anchor="start">g = 9.8m/s²</text>
</svg>
<br>
<strong>Example:</strong> How much energy does it take for an elevator to bring a 100kg person from the 1st story to
the 6th story?
<a href='https://www.wolframalpha.com/input/?i=how+high+is+1+story+in+meters'> convert 1 story to meters</a>
Expand All @@ -315,7 +318,7 @@ <h1>$$U_{g} = mgh$$</h1>
</details>
</div>
<div class='example'>
<svg width="200" height="200" viewbox="-30,0,150,220" class='svgDiagram center' version="1.1" xmlns="http://www.w3.org/2000/svg">
<svg width="200" height="200" viewbox="-30,0,150,220" version="1.1" xmlns="http://www.w3.org/2000/svg" class='center'>
<rect id='ground' x="-50" y="160" width="400" height="200" style="fill:#cba" />
<rect x="0" y="0" width="60" height="60" stroke-dasharray="3,3" fill-opacity="0" style="stroke:grey;stroke-width:2;" />
<rect x="0" y="100" width="60" height="60" style="stroke:black;stroke-width:2;fill:#ccc" />
Expand All @@ -327,6 +330,7 @@ <h1>$$U_{g} = mgh$$</h1>
<text x="80" y="155" fill="black" text-anchor="start">y = -400ft</text>
<text x="5" y="180" fill="black" text-anchor="start">g = 9.8m/s²</text>
</svg>
<br>
<strong>Example:</strong> How much gravitational energy is lost as an 80.0kg person rides down from the top of the 400ft
ride
<i>LEX LUTHOR: Drop of Doom</i>?
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12 changes: 7 additions & 5 deletions physics/notes/energy/2-conservation/index.html
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<head>
<meta charset="UTF-8">
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<meta name="description" content="Notes for a high school physics course.">
<meta name="author" content="Ross Landgreen">
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<h1>Conservation of Energy</h1>
</header>
<article>
<h1 class='underlined'>Trading Energy</h1>
<p>Take a look at the simulated spring and mass system below.</p>
<p>What types of energy are being traded?</p>
<p>When is the velocity the highest?</p>
<p>What is the effect of a higher spring constant?</p>
<p>What types of energy are being traded?
<br>When is the velocity the highest?
<br>What is the effect of a higher spring constant?</p>
<canvas id="canvas1" width='600' height='200' onclick="spring(this)"> </canvas>
<br>
<button id="pause1">
Expand Down Expand Up @@ -159,6 +160,7 @@ <h1>Energy cannot be created or destroyed,
</details>
</div>
<h1 class='underlined'>Energy Loss and Gain in a System</h1>
<br>
<div class="col-group">
<div>
<canvas id="canvas0" width='250' height='445' onclick="particles(this)"> </canvas>
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59 changes: 41 additions & 18 deletions physics/notes/force/1-intro/index.html
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<head>
<meta charset="UTF-8">
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<meta name="description" content="Notes for a high school physics course.">
<meta name="author" content="Ross Landgreen">
<meta property="og:description" content="Notes for a high school physics course.">
Expand All @@ -26,14 +28,21 @@ <h1>Newton's Laws</h1>

<article>
<h1 class='underlined'>Newton's First Law: Inertia</h1>
<p><em>When viewed in an inertial reference frame, an object either remains at rest or continues to move at a constant velocity, unless acted upon by an external force.</em></p>
<p>
<em>When viewed in an inertial reference frame, an object either remains at rest or continues to move at a constant velocity,
unless acted upon by an external force.</em>
</p>
<p>Objects keep moving in a straight line at a constant velocity unless they have a force acting on them.</p>
<p>Objects with mass have inertia. <strong>Inertia</strong> is the resistance of any physical object to any change in velocity.
The more mass an object has the more force is required to change its motion.</p>
<p>Objects with mass have inertia.
<strong>Inertia</strong> is the resistance of any physical object to any change in velocity. The more mass an object has the more
force is required to change its motion.</p>
<p>Objects in space keep moving without slowing down. Why do things on Earth slow down so quickly?</p>

<h1 class='underlined'>Newton's Second Law: Force</h1>
<p><em>The vector sum of the external forces F on an object is equal to the mass m of that object multiplied by the acceleration vector of the object.</em></p>
<p>
<em>The vector sum of the external forces F on an object is equal to the mass m of that object multiplied by the acceleration
vector of the object.</em>
</p>
<div class='definition'>
<svg class='svgDiagram center' width="300" height="120" viewBox="-15 0 285 120">
<defs>
Expand All @@ -57,16 +66,19 @@ <h2>
$$\sum F=ma$$ $$\sum F=F_{1}+F_{2}+F_{3}+...$$
</h2>
<p>\( \sum \) = The greek letter Sigma represents a summation of numbers. It means add up all the forces to get a net force.</p>
<p>\( F \) = force [N, Newtons, kg m/s²] <em>vector</em>
<p>\( F \) = force [N, Newtons, kg m/s²]
<em>vector</em>
<br>a push or a pull</p>
<p>\(m\) = mass [kg, kilogram]
<br>the measure of an object's resistance to acceleration</p>
<p>\(a\) = acceleration [m/s²] <em>vector</em>
<p>\(a\) = acceleration [m/s²]
<em>vector</em>
<br>the change in velocity every second</p>
</p>

</div>
<div class='example'><b>Example:</b> A soccer ball has a mass of 0.43kg. Find the acceleration of the ball when it experiences a net force (total
<div class='example'>
<b>Example:</b> A soccer ball has a mass of 0.43kg. Find the acceleration of the ball when it experiences a net force (total
force) of 1N from air friction.
<details>
<summary>solution</summary>
Expand Down Expand Up @@ -129,8 +141,12 @@ <h2>
</details>
</div>

<h1 class='underlined'>Newton's Third Law:<br> Equal and Opposite Force Pairs</h1>
<p><em>When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body.</em></p>
<h1 class='underlined'>Newton's Third Law:
<br> Equal and Opposite Force Pairs</h1>
<p>
<em>When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite
in direction on the first body.</em>
</p>
<svg class='svgDiagram center' width="400" height="110">
<rect x="0" y="80" width="600" height="110" style="fill:#ccc" />
<rect x="300" y="1" width="40" height="40" stroke='#000' style="stroke-width:2;fill:#cfe2f6" />
Expand All @@ -145,17 +161,18 @@ <h1 class='underlined'>Newton's Third Law:<br> Equal and Opposite Force Pairs</h
<p>If you push on something it will push back with the same force, but in the opposite direction. Forces always come in equal,
but opposite pairs.</p>
<div class='example'>
<b>Example:</b> You push down on the ground with a 1000N force. Describe the magnitude and direction of the force the
ground pushes on you.
<b>Example:</b> You push down on the ground with a 1000N force. Describe the magnitude and direction of the force the ground
pushes on you.
<details>
<summary>solution</summary>
<p>The force the ground applies is equal and opposite to the force you apply on the ground.</p>
<p>The magnitude is 1000N.</p>
<p>The direction is up.</p>
</details>
</div>
<div class='example'><b>Example:</b> A boxer's glove applies a 140N force to the face of another boxer. Describe the magnitude of the force
the face applies to the glove.
<div class='example'>
<b>Example:</b> A boxer's glove applies a 140N force to the face of another boxer. Describe the magnitude of the force the
face applies to the glove.
<details>
<summary>solution</summary>
<p>The force is equal and opposite.</p>
Expand All @@ -168,7 +185,8 @@ <h1 class='underlined'>Newton's Third Law:<br> Equal and Opposite Force Pairs</h
throw?
<details>
<summary>solution</summary>
<p>The force the space laser feels is <br>equal and opposite to the force you feel.
<p>The force the space laser feels is
<br>equal and opposite to the force you feel.
<p>
<p>space laser</p>
$$F = ma $$ $$F=(2)(40)$$ $$F=80N$$
Expand Down Expand Up @@ -200,11 +218,16 @@ <h1 class='underlined'>Newton's Third Law:<br> Equal and Opposite Force Pairs</h
the left?
<details>
<summary>solution</summary>
<p><strong>box</strong></p>
<p>
<strong>box</strong>
</p>
$$\sum F=ma$$ $$F_{tension}=(10)(-0.5)$$ $$F_{tension}=-5N$$
<br>
<p>The force on the string is equal<br> but opposite for the squirrel and box.</p>
<p><strong>squirrel</strong></p>
<p>The force on the string is equal
<br> but opposite for the squirrel and box.</p>
<p>
<strong>squirrel</strong>
</p>
$$\sum F=ma$$ $$F_{squirrel} + F_{tension}=ma$$ $$F_{squirrel} + 5=(0.4)(-0.5)$$ $$F_{squirrel}=-0.2-5$$ $$F_{squirrel}=-5.2N$$
<p>The squirrel is producing a force of 5.2N to the left.</p>
</details>
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