AutoSave . OFF A ? " CFA ... w 2425-Lab_2B_Moving_Man_w_PhET (2) - Saved to my Mac Home Insert Draw Design Layout References Mailings Review View Acrobat ? Tell me Share Editing Comments Times New... 12 A A Aa v x lev Paste BI Uv ab *2 Av LAV Styles Styles Dictate Sensitivity Editor Show Show Fill and Send for Agreement Create and Share Request Pane askpane Taskpane Sign Signature Status Adobe PDF Signatures PHYS-2425: Position and Velocity vs. Time Graphs Name: Roshan Dhakal Introduction. When object is moving, we are often interested to learn about its direction of motion, position, velocity, etc. Equations can contain relevant information in a compact form, and they are very useful when one needs to describe the idealized situations. Sometimes, however, when describing a real-life scenario, one might prefer to use a pictorial mathematical representation - a graph. As you have seen in your textbook, graphs of motion can take various forms such as position vs. time, velocity vs. time, etc. In this Lab, you will be using "The Moving Man" simulation to model the real-life situations and create graphs as their mathematical representations. Procedure. Go to http://www.colorado.edu/physics/phet and find "The Moving Man" simulation under the category of "motion." There are several youtube videos available that can help you understand this simulation, for example: https://www.youtube.com/watch?v=xmCvpsQRKyo. 1. After "The Moving Man" is open leave the position graph and the velocity graph open but close the acceleration graph by clicking the symbol in the upper right hand corner of the graph. Investigate Moving Man by dragging the dude around with your mouse. This will give you very jumpy data, especially in the acceleration graph - why? Now try making the man move using the slider arrows. Use the playback features to look at the graphs. 2. For each of the six scenarios below, PREDICT what the position vs. time and velocity vs. time will look like. Don't be afraid to be wrong - and don't cheat by looking at Moving Man first! (A) A man moving from the center of the screen (0 m) to the house (8m) at a slow, steady pace. 10 10 5 osition (m) ($ ) o 2-5 2-5 -10 -10 G Explain your reasoning for the appearance of the graphs: Page 1 of 7 870 words X English (United States) Focus E 90%AutoSave . OFF A ? " CFA ... w 2425-Lab_2B_Moving_Man_w_PhET (2) - Saved to my Mac Home Insert Draw Design Layout References Mailings Review View Acrobat ? Tell me Share Editing Comments Times New... 12 A A Aa v x lev Paste BI Uv ab *2 Av LAV Styles Styles Dictate Sensitivity Editor Show Show Fill and Send for Agreement Create and Share Request Pane askpane Taskpane Sign Signature Status Adobe PDF Signatures PHYS-2425: Position and Velocity vs. Time Graphs (B) A man moving from 0 to the house at a faster pace than above. 10 10 Position (m Time lelocity (m/s ) Time -5 -10 Explain your reasoning for the appearance of the graphs: (C) A man standing still at 4 m. 10 10 Time OUT Position ( m ) ( 5 ) Velocity (m/s) -5 10 -10 Explain your reasoning for the appearance of the graphs: G Page 2 of 7 870 words English (United States) Focus E 90%AutoSave . OFF A ? " CFA ... w 2425-Lab_2B_Moving_Man_w_PhET (2) - Saved to my Mac Home Insert Draw Design Layout References Mailings Review View Acrobat ? Tell me Share Editing Comments Times New... 12 A A Aa v x lev Paste BI Uv ab *2 Av LAV Styles Styles Dictate Sensitivity Editor Show Show Fill and Send for Agreement Create and Share Request Pane askpane Taskpane Sign Signature Status Adobe PDF Signatures PHYS-2425: Position and Velocity vs. Time Graphs (D) A man moving from 0 to the house at a fast pace then moving back to 0 at a slower pace. 10 10 5 -5 -10 -10 Explain your reasoning for the appearance of the graphs: (E) A man moving from 8 m to the tree m at a fast pace. 10 10 (5) 9 3 -10 -10 Explain your reasoning for theappearance of the graphs: 32 Page 3 of 7 870 words English (United States) Focus E 90%AutoSave . OFF A ? " CFA ... w 2425-Lab_2B_Moving_Man_w_PhET (2) - Saved to my Mac Home Insert Draw Design Layout References Mailings Review View Acrobat ? Tell me Share Editing Comments Times New... 12 A A Aa v x lev Paste BI Uv ab Av LAV Sensitivity Show Show Request *2 Styles Styles Dictate Editor Fill and Send for Agreement Create and Share Pane askpane Taskpane Sign Signature Status Adobe PDF Signatures PHYS-2425: Position and Velocity vs. Time Graphs (F) A man moving from 0 to the house, speeding up as he walks. 10 10 5 u) uo Time 10 -10 Explain your reasoning for the appearance of the graphs: 34 Page 4 of 7 870 words English (United States) Focus E 90%AutoSave OFF A ? " CFA ... w- 2425-Lab_2B_Moving_Man_w_PhET (2) - Saved to my Mac Home Insert Draw Design Layout References Mailings Review View Acrobat ? Tell me Share Editing Comments Times New... 12 A A Aa v x lev Paste BI Uv ab Av LAV Styles Styles Dictate Sensitivity Editor Show Show Fill and Send for Agreement Create and Share Request *2 Pane askpane Taskpane Sign Signature Status Adobe PDF Signatures PHYS-2425: Position and Velocity vs. Time Graphs 3. Use the Moving Man simulation to verify your predictions in Step 2. Correct your predicted graphs with a different colored pen and correct your explanations as needed. 4. Make new distance vs. time and velocity vs. time charts for each of the following scenarios. Predict what you think the graphs will look like, and then use Moving man to verify or correct your predicted graphs and reasoning with a different color pen. G) The man stands still while he talks on his cell phone at the middle of the sidewalk, then walkstoward the house at a constant rate trying to get better cell reception. He comes to a sudden stop when the coverage is good (about a meter before the house) and stands still to finish hisconversation. 10 10 o on (m) e ( s ) time -5 3-5 10 Explain your reasoning for theappearance of the graphs: (H) The man starts close to the tree, then he stands still for a little while. After that he moves at a constant rate for a while, then slows gradually to a stop. 10 10 5 0 (5) 3 - 5 10 -10 Explain your reasoning for the appearance of the graphs: 34 English (United States) Focus E 90% Page 5 of 7 870 wordsAutoSave . OFF A ? " CFA ... w 2425-Lab_2B_Moving_Man_w_PhET (2) - Saved to my Mac Home Insert Draw Design Layout References Mailings Review View Acrobat ? Tell me Share Editing Comments Times New... 12 A A Aa v x lev Paste Av LAV Styles Styles Dictate Sensitivity Editor Show Show Fill and Send for Agreement Create and Share Request BI Uv ab *2 Pane askpane Taskpane Sign Signature Status Adobe PDF Signatures PHYS-2425: Position and Velocity vs. Time Graphs (1) A man wakes up from his nap under the tree and speeds up toward the house. He stops becausehe is worried that he dropped his keys. He stands still as he searches his pockets for his keys. Once he finds them, he continues calmly to walk toward the house and then slows to a stop as he nears the door. 10 10 OU -10 -10 Explain your reasoning for the appearance of the graphs: (J) The man starts three meters from the house and speeds up as he walks towards the tree. 10 10 Tim 5 GOU G Focus 90% Page 6 of 7 870 words English (United States) EAutoSave . OFF A ? " CFA ... w 2425-Lab_2B_Moving_Man_w_PhET (2) - Saved to my Mac Home Insert Draw Design Layout References Mailings Review View Acrobat ? Tell me Share Editing Comments Times New... 12 AA Aa v x lev Paste BI Uv ab Av LAV Styles Styles Dictate Sensitivity Editor Show Show Fill and Send for Agreement Create and Share Request *2 Pane askpane Taskpane Sign Signature Status Adobe PDF Signatures PHYS-2425: Position and Velocity vs. Time Graphs 5. Write a possible scenario for the following graph. Position=-3.62 m Position 2 sec 10 14 Time G Page 7 of 7 870 words English (United States) Focus E 90%