Physics > QUESTIONS & ANSWERS > BASIC Energy Skate Park PhET Lab_ENV111 The Skate Basic Park – Intro to Energy Potential and Kinet (All)
The Skate Basic Park – Intro to Energy Potential and Kinetic PhET Lab Downloading the Program: Go to https://phet.colorado.edu/en/simulation/energy-skate-park-basics and download the program. ... A box will pop-up in the bottom of your screen that says “this type of file can harm your computer…” ignore this, this file is not a virus. Select “Keep”. Next open the file. Mac users, you may have to find the file in recent downloads in order to open it. I tried this with both Mac and PC computers and was able to open the simulation in both. When downloaded, this will perhaps add an icon to your open programs that looks like a steaming cup of tea. Hit “Accept and Continue” if asked. When you open the program it will look like this: Introduction: This simulation is designed to illustrate the first law of thermodynamics--the law of conservation of energy. As you will remember from the lecture slides, conservation of energy tells us that energy is neither created nor destroyed, but rather changed its form. In this lab, we will look at the conversion of energy between gravitational-potential energy, work, and kinetic (or moving) energy. To run simulations, you click and drag the skater to the top of the ramp and release him. To see the changes in potential and kinetic energy, click one of the graphs on the right side of the simulation (bar graph or pie graph work well). You may even design your own track on the “Track Playground” tab if you like. Take some time and play with the skater. Turn on the Bar Graph, Pie Chart, and Speed options. Questions: 1) State, in your own words, the Law of the Conversation of Energy 2) How does increasing skater's mass change the skater’s…? 3) How does the skater’s kinetic energy and potential energy change as he moves down the ramp? 4) How does the skater’s kinetic energy and potential energy change as he moves up the ramp? 5) Describe the skater’s kinetic and potential energy at the bottom of the ramp. 6) Draw where the skater might be based on the bar graphs shown. To do this, click on the picture of the skater(s) below and drag a copy of this image over the picture of the ramp to the location you believe is represented in the bar graph to the left of each scenario. (Make sure this is all aligned before you save and submit your files). ← Consider this zany track. What point or points on this track would the skater have ... The most kinetic energy? The most potential energy? Conclusion Questions: (bold the correct answers in each statement below) 1. At the highest point kinetic energy is zero / maximum while the potential energy is zero / maximum. 2. At the lowest point kinetic energy is zero / maximum while potential energy is zero / maximum. 3. Mass affects / does not affect the amount of energy. 4. As an object falls in gravity, kinetic energy increases / decreases / remains the same. 5. As an object falls in gravity, potential energy increases / decreases / remains the same. 6. As an object falls in gravity, total energy increases / decreases / remains the same. 7. An object travelling faster and faster has a kinetic energy that increases / decreases / remains the same. 8. An object travelling faster and faster has a potential energy that increases / decreases / remains the same. 9. As an object speeds up, the total energy increases / decreases / remains the same. 10. As an object slows down, the total energy increases / decreases / remains the same. [Show More]
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