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open this link:https://phet.colorado.edu/en/simulations/energy-skate-park and click on play with sims, work energy and power, energy skate park. all set up like here: X + Google Translate

open this link:https://phet.colorado.edu/en/simulations/energy-skate-park and click on play with sims, work energy and power, energy skate park.

all set up like here:

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X + Google Translate X Energy lab X Pher Energy Skate Park X W File:Planaria excretory syst x G phylogenetic tree - Google X CD phet.colorado.edu/sims/html/energy-skate-park/latest/energy-skate-park_en.html MA @ Google Translate Home :: * SparkNotes @ DeepL Translate composition & BM-F, Kitti Paper Checker | O... All LitCharts | From t... G Grammarly + Energy Energy Pie Chart Kinetic Speed Speed Potential Stick to Track Thermal Friction 0.0 m/s Total None Lots Gravity 7.6 m/s2 1.0 26.0 Custom V 4 Mass 36 kg 5 100 2 00:00.00 PET 0 m Height = 0 Grid Reference Height -.. GO O Normal Restart Skater Slow Energy Skate Park N PRET : Intro Measure Graphs PlaygroundInvestigate Energy is lost. sdoes : have friction 13. RESET Potential Energy reference and Show grid does not : no frict Adjust the bottom of the track and the PE = 0 line to 1 m on the grid At the lower right Click edit skater and change his mass to 100. kg 14. Calculate the PE of a 100 kg skater at height of 4 m above 0 level 2 40. Joules 15. Click on Energy graphs Energy vs Time Move this graph to the top and adjust the main window if necessary to see the ramp Return skater use REC (record) to make graphs. Stop. (Clear and repeat if necessary) Use rewind and Step to record PE KE at various positions in the table below Point 1 about Point 2 about Point 3 about Point 4 about 2 m level 2.5 level 3 level 3.5. level going DOWN going DOWN going UP going UP Kinetic Energy Potential Energy Total Energy 16. With the Energy graph still showing click choose skater and bug Return skater Resume Enlarge the graph click on + What is the total energy of the bug? Are the KE and PE of the bug acting the same as the skater's? 17. The total energy of the bug is (the same as) ( much less than ) (much more than) the skaterEnergy Lab Purpose - The purpose of the energy skate park simulation is to see how energy gets transferred in a real world application. In this simulation you will manipulate the skater, friction, gravity, and other factors to see the affect of these on a skater who behaves according to the laws of physics. Energy Transfer without Friction - Make a prediction 1st! You have already learned that in a frictionless, or air resistance less world, that potential and kinetic energy are readily exchanged in a mechanical system and total energy is conserved. For each graph below, draw the expected potential, kinetic, and total energy of a skater going down a curved track, then back up the other side, with no friction. Show multiple (at least 3 cycles) PE TE With Friction - Now in an environment with friction, some of the energy is lost as heat. For each graph below, draw the expected potential, kinetic, and total energy of a skater going down a curved track then back up the curved track, with some small amount of friction. Show multiple (at least 3 cycles). In addition, there is a graph of total heat (not instantaneous heat). Make a prediction of what a graph of this would look like too. PE Mm TE KE Heat Simulation Now go back and simulate the motion both without (top set of graphs) and with friction (bottom set of graphs), and mark on the graph the actual energy as measured in the simulation. Even if you got it right, go back and mark (in another color) the actual shape. Effect of gravity On the graphs below, show the difference you might expect if you put the skater on Jupiter, where gravity is approximately 2.65x that of Earth. Label the graphs in terms of the PE, KE, and TE of the Earth graphs above. Remove Friction again! PE MAAM TE KE Heat Simulation Now go back and simulate the motion as if on Jupiter, and without friction, and mark on the graph the actual energy as measured in the simulation. Even if you got it right, go back and mark (in another color) the actual shape. What would the graph of heat look like? Discussion

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