## Bottles Down Hill on String

Gravity is Fun...

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Gravity is Fun...

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The following Excel (macro enabled) file, let's you define how you want pivot tables set up. https://app.box.com/s/aran902b3ymbc665zz7xpp0r3gqha4ye h t tp s:/ /app.box. com/s/aran902b3ymbc665zz7xpp0r3gqha4ye You define the parameters of of the piv...

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This is a simulation I made in Desmos to show standing waves. You can see the transverse standing wave and the two component wave trains. You can see a longitudinal wave, and you can see the relative pressure in the longitudinal wave. You can vary the...

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Classic Demonstration of Angular Momentum Conservation. Similar to a skater pulling their hands in during a spin. Having less talent, I start the spin with two 1.5 kg (3.3 lb) dumbells outstretched. Once I catch my balance, I slowly bring the dumbell...

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Entertaining a 3 year old, and his parents, by filming a hot wheel car hitting lego people in slow motion. Because it's 2018 and we can. Sorry the 2nd video clip is upside down. I used a free online tool to merge 2 clips. I miss the old youtube video ...

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This excel spreadsheet allows you to create randomized worksheets of 60 multiplication problems. You can choose which digits you would like to include or exclude. You can even pick specific problems to include or exclude. It's handy if you are practicin...

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I created an interactive desmos simulation that let's you curve (or scale) scores using 1 of 4 methods. 1. Give a fraction of the missed Points Back. 2. "Square" root the original score and multiply by "10". 3. Enforce a new desired average and standa...

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This is how we experienced totality during the 8/21/2017 solar eclipse in Columbia, Missouri. I set up 2 vernier light probes and a temperature probe. I will post the data here later. There were some thin clouds during the eclipse but we still got a ...

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This is a simulation of the "High Road vs Low Road" Demostration. Using energy conservation it's straightforward to show both tracks end with the same speed. But this simulation computes by how much the low road beats the high road. The simulation is t...

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A question came up about what the electric potential would look like between two lines of charge (or a line of charge and a point charge) if the charge varied with position. This is an excel simulation I made to model that. Excel File: https://app.box....

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But not always. I think it will move backwards anytime the ratio of pedal distance to tire radius is smaller than the gear ratio. But if you have a really low gear ratio or really long pedal, the bike will move forward. Here's a .pdf of the derivation ...

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Super quick demonstration of how to peform Data fits in Desmos, using Circumference, Area, and Diameter Data as an example. Desmos Example: https://www.desmos.com/calculator/4idw7rioux A couple hundred circle data points https://docs.google.com/spreadsh...

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This is a Desmos that allows you to calculate the theoretical tube lengths for the traditional fixed-open tube speed of sound lab. Higher harmonics are also calculated and graphed. Open-Open or Fixed-Fixed tubes can also be calculated by changing a par...

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I made a Desmos simulation to explore the relative velocities of two objects undergoing a 1 Dimensional collision. https://www.desmos.com/calculator/dnh6osvxgn The collision can be viewed from the Lab or Center of Mass Reference Frame. The collision ...

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Here is a Pendulum Snake Wave Machine I made out of Bocce Balls In a pendulum wave snake, a series of pendulums is constructed so that each pendulum differs from its neighbor by one cycle per minute (Or another desired 'Dance' time). The result is serie...

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Instructions on how to tune a "Pendulum Snake" wave machine using a photogate. I am using a Vernier Photogate and Logger Pro sofware. I've created a special Logger Pro File to make the process simpler. Here is a Pendulum Snake Wave Machine I made out o...

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I made two Desmos Simulations of a Pendulum Wave Snake. The first simulation does 2 things: 1) If you input your parameters it tells you exactly where to place each pendulum bob. 2) It creates an animation of how your Pendulum Snake Wave Machine should m...

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Here is a quick overview of how I built this Bocce Ball Pendulum Snake Wave Machine. See link below for a parts list and more. Here is a Pendulum Snake Wave Machine I made out of Bocce Balls In a pendulum wave snake, a series of pendulums is constructe...

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If you want to know how long to make each pendulum, here is the formula you need. There is also a Desmos simulation in the links below. I present the formula, where it came from, and compare my results to the theoretical. I explain how to determine ho...

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Here is a Pendulum Snake Wave Machine I made out of Bocce Balls In a pendulum wave snake, a series of pendulums is constructed so that each pendulum differs from its neighbor by one cycle per minute (Or another desired 'Dance' time). The result is serie...

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Blue paper is cm of meter stick. Second chalk line is 50 cm from first....

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This is and adjustable Desmos graph of potential energy as a function of position, as well as Force, Total Mechanical Energy, Kinetic Energy, and speed. The area of the F vs X graph is also shown. Demos Graph: https://www.desmos.com/calculator/wzptqqus...

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Does it matter how you linearize data? I think so. Here is a situation where a small mass,m, hangs over a massless, frictionless pulley and pulls a larger mass M, up a frictionless inclne. Two different methods are used to linearize that data. I've t...

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Here is a projectile motion simulation I made in Desmos by parametrically graphing the path of two projectiles. The common projectile motion questions are automatically calculated. Range,Altitude,Time of Flight, Landing Angle etc. This can be run as a ...

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Here is how to plot some linear and nonlinear data in Desmos. https://www.desmos.com/calculator/jlll8awray Desmos ID: jlll8awray...

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This Demos graph simulates two moving objects. I like to call this the Corvette vs the Escort, or the Police Car vs the Speeder. You enter the initial conditions of each object (position, velocity, acceleration etc), and position, velocity and accelerat...

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I used Demos to create a simulation for Standing Waves, and also used the simulation to show Beats. https://www.desmos.com/calculator/b7kxqry7xe Desmos ID: b7kxqry7xe...

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Here is a Demos Fit for a flower pot falling past a window. It's a fun nonlinear function to fit using Desmos. https://www.desmos.com/calculator/gy5mrfebhk ID:gy5mrfebhk...

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Here is how to fit the Period vs Length data for a Conical Pendulum using Desmos . https://www.desmos.com/calculator/tvtfftg2rz That's Demos: ID: tvtfftg2rz...

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This is a video explanation of the top 40 missed by my student's this year. To download a .pdf of the questions go to www.mrhosey.com/2016 If you'd like to check out an Excel review program I made www.mrhosey.com/review 2015 Review: https://www.you...

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I made a Bingo Card Generator in Excel that will generate as many bingo cards as you desire in any size from 3 x 3 square to 9 x 9 square. I shared the file here: https://www.dropbox.com/s/vs6g3e86fg7bkh9/Bingo%20Generator%2005%202018_01_13.xlsm?dl=0 I...

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AP Physics C, Motional emf and energy transfer, a loop of wire pulled through a perpendicular magnetic field....

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AP Physics C. Self Inductance in solenoid explanation....

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AP Physics C, solving a simple RL circuit...

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Getting to the end of AP Physics C, so I'm explaining how inductors behave like toddlers, and capacitors behave like parents. Inductors and Capacitors are compared and contrasted....

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I took the scores from every AP Exam (all subjects) from 2007 to 2015 (available at the college board website) https://research.collegeboard.org/programs/ap/data/archived and organized the data into an easier to understand form. I created a spreadsheet...

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The simple discharging of a Capacitor in an RC circuit. Explained for my AP Physics C Students. To my students. There is an Open Notes Quiz tomorrow....

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An explanation of a capacitor charging in a simple RC Circuit. Created for my AP Physics C EM students. Any anyone else on youtube....

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What will happen when two tennis balls tied together vertically by a string are dropped?...

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From AP Physics Class 2015 Physics worked out here: https://app.box.com/s/2v4ij0v7ryhn9u8x5o4d8a7udltr8s8x...

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3 100 g Meter Sticks are allowed to pivot about one end to the ground. The Front Meter Stick has a 200 g mass attached at 23 cm from the pivot. The Middle Meter Stick has not additional mass attached. The Rear Meter Stick has a 200 g mass attached at t...

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In AP Physics Class today, students predicted how far a bungee cord would stretch when an attached mass was dropped from a known height. The little blue car on the filing cabinet is the predicted maximum position. To do this students built a 'bungee cor...

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