Helium Interaction Applet

Name:____________________ Anett Vila Panther ID:__________________ 6353398 Worksheet 1.6 Helium Interaction Applet Here we are going to build upon the ideas from last week with how potential and kinetic energy changes as two objects approach. In this case we are now talking about an isolated system containing two helium atoms interacting. Click Play on the video and watch the first few minutes. The process is repeated twice. 1. Take a minute to examine the potential energy curve shown. Reflect on why the potential energy curve is drawn this way and how this relates to what we did in class last class period. n X & 60 00 00 I there is a ↑ blc attraction atom . However overall but , they they when nucleus the they when carry same the touch/get close get very close it so protons has will always in shown Therefore as attract charge they repel and the P . bit slight to another initially Espikes/ attracting It . displays wise which stays and attraction be nevsa same the increases Kinetic when that repulsion . Potential It & decreases total records also 3. Why does the potential energy decrease as the atoms begin to approach? and - attraction & blo because causes potential velocity nucleus kinetica so decreases protons and therefore . 4. What happens to the kinetic energy as the helium atoms begin to approach? Why? because when increases It they first approach attractio there's velocity with blo of nucleus and Kinetic therefore , attraction 5. What happens to the total energy as the helium atoms begin to approach? Why? The total energy approaches at om slightly it decreases takes some of because as the energy in another the system . 6. What happens to the potential energy as the two atoms get really close together? Why? charged as really close they atoms/molecules repell so they when Kinetic get decreases . can the Repelling touch practically potential forces A energy potential . . decrease . around all PE increases 2. What kinds of energy do the various energy “meters” and graph record? What is the relationship between all these types of energy? total energy and Kinetic energy P E it records . repel , because they eventually video when . a , the will same increase and energy Name:____________________ Vila Are Panther ID:__________________ 6353398 At about 1:45 and 3:10 in the video the “lose energy” button is clicked. 7. Explain what happens when the “lose energy” button is clicked. . Another comes repelled and of atom the and in lowers and is also attracted the "total energy" system At about 4:35, the applet changes to a different view (Page 4). Now you have multiple helium atoms moving around (lighter shading) and two helium atoms that are your system you are looking at (darker shading). 8. What do you initially notice about the two helium atoms? (Hint: where is the potential energy located on the graph and what does this mean in terms of the interaction between the two helium atoms?) The another one initially very close almost touching is low but potential energy atoms are helium The , Flucrating because of atraction t atoms the At about 5:10, the user increases the temperature on the simulation. 9. What happens to the system of the two helium atoms as the temperature is raised? Explain how this happens. As In temperture the atoms system to helium the increases more atoms , because so it does causes around more break simulation . the . apart energy the helium So , the other the two in .