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course phy 232
Experiment kinmodel_03: Equipartition of energy and the direction of disorder to (increasing or decreasing)Observe the first several seconds of the simulation at the 'slow' default speed. You will see how the particles initially are all moving in or very close to the x direction, with little or no y component. Note the x and y kinetic energies, displayed near the top of the screen.
???? I cant get it to switch into any modes or speeds????? I am doing this experiment with the normal settings that I downloaded it with.
Observe what happens to the directions of motion of the particles as they start colliding.
○ They bounce off of each other in opposite directions of their point of contact.
Observe what happens to the x and y kinetic energies.
○ The x goes to the y and the y goes to the x
Is the system more organized at the beginning of the simulation or after a couple of minutes?
○ The system doesnt look organized at any point
If the x and y kinetic energies were averaged for 100 years, starting a few minutes after the simulation began, which do you think would be greater?
○ Neither they would equal out.
Run the simulation in this manner several times, and each time determine how long it takes before the total y kinetic energy is first greater than the total x kinetic energy. Report your results.
Now take some data:
Running at the fastest default speed, stop the simulation with the pause/break key every few seconds, keeping your eyes closed for at least 2 seconds before stopping the motion.
Write down the x and y kinetic energies each time.
Do this at least 30 times.
Find the average of all your x and all your y kinetic energies.
Do you believe the difference in the averages is significant, in that the direction that has the higher average will always tend to have the higher average every time the simulation is run?
○ My averages were only off by around 100 so I think that they will equal each other every time.
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&#Good work on this lab exercise. Let me know if you have questions. &#
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