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Find Homework and announcements on our class wiki: http://machs215.wikispaces.com/. Do now. Review: What is the difference between velocity and speed? Answer this question in TAG. Reminders/Announcements.

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Do now

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  1. Find Homework and announcements on our class wiki: http://machs215.wikispaces.com/ Do now Review: What is the difference between velocity and speed? Answer this question in TAG.

  2. Reminders/Announcements • If you were absent Thursday you must make up the quiz after school today or receive a zero • Grades close for interims this Thursday • 9th grade science grades have improved by 15% since Q3 started • Congratulations to Ca’chee Maven and Ketlene Destin for currently holding the highest science grades in the 9th grade

  3. agenda • Do now • Lab intro • Lab • Closing Find Homework and announcements on our class wiki: http://machs215.wikispaces.com/

  4. Lab Report • Homework for this week is to complete a typed lab report for the lab done on Monday. • This report is due this Friday March 9th and you will lose 10 points for each day late. See the rubric for how your report will be graded. • Emailed projects/Flash Drives will NOT be accepted. Use the computer lab to print out your work.

  5. procedure • 1. Using piece of tape mark off the following locations on the floor or a tape: 0 meters 1 meter 2 meters 3 meters. • 2. Place the car on the floor about 0.5 meters in front of the tape that is marked at 0 meters. Start the car and allow it to move toward the 0 meter mark. • 3. When the front of the car reaches the 0 meter mark start your stopwatch. Then stop the stopwatch when the front of the car reaches the 1 meter mark. Record the time in the table below. • 4. Repeat this procedure for 2 more trials.

  6. 5. Calculate the average time and record in the table. • 6. Calculate the average speed using the formula given in the background and record in the table. • 7. Repeat the steps above but this time allow the car to move from the 0 meter mark to the 2 meter mark. Do this for three trials. Then do the same thing and allow the car to move from the 0 meter mark to the 3 meter mark and do this for three trials.

  7. Lab expectations • Stay on task • Follow directions • Respect each other- make sure everyone is included • YOU HAVE ONLY TODAY TO DO THIS LAB

  8. Closing • Write a summary (3-5 sentences) of what you completed during the lab today • Turn in progress reports signed Find Homework and announcements on our class wiki: http://machs215.wikispaces.com/

  9. Do Now- 3/6 • What do you notice about the graph below? • What kind of information can you get from it? Key: car position:

  10. The Atticus Scale When Harper Lee wrote her first and only novel, To Kill a Mockingbird in 1960, she had no idea that she was creating one of the most influential works of fiction in modern history and, in the character of Atticus Finch, one of the most moral literary heroes of all time.The following is an adaptation of Lawrence Kohlberg's Six Levels of Moral Development based on the character of Atticus Finch. In everything that we do, whether it be handing our homework in on time, waiting to put our gum in a trash can instead of under a desk, helping a total stranger on the street, or taking a stand against bullying, we must ask ourselves what our reasons are for behaving the way we do. Only through personal reflection and analysis of these behaviors can we eventually progress to the height of moral development.

  11. The Atticus ScaleLevel I: I Don't Want to Get in TroubleLevel II: I Want a RewardLevel III: I Want to Please SomebodyLevel IV: I Follow the RulesLevel V: I am Considerate of Other PeopleLevel VI: I Have a Personal Code of Behaviour and I Follow it (the Atticus Finch Level)

  12. agenda • Do now (2 min) • Reminders/Shoutouts (1 min) • Notes (8 min) • Whole class practice (15 min) • Independent Practice (5 min) • Closing (2 min)

  13. Reminders: • Typed lab report due Friday • Study LG 4.2 on quizlet • All things used in class found on machs215.wikispaces.com

  14. Shout outs: • -The 9th Grade as a whole has increased their average science grade by 15% in just 3 weeks. • -Cach’eeMaven has the highest overall science grade in the 9th grade • - Dhamear Thomas has brought his science grade up by 50% in just 3 weeks • - Kate Watkins has brought her science grade up by 57% in just 3 weeks • - Dominic Pagliario has brought his science grade up by 134% in just 3 weeks (Wow!!)

  15. LG 4.1 Distance and Displacement:New Results AlLclasses: 70.1%Perfect Scores: Eddie Baez Xavier Hammond Nick Pagliaro Alea Gonzalez Anthony Trott Xavier Cruz Jalisa Ferguson Jamie McKiernan Justin Braun

  16. AlL classes: 70.1% • Per 2: 70.1% highest score: Salena Washington 92% mastery

  17. AlL classes: 70.1% • Per 3: 68.9% • highest score: Eddie Baez Xavier Hammond Nick Pagliaro 100% mastery

  18. AlL classes: 70.1% • Per 4: 72.3% • highest score: Alea Gonzalez Anthony Trott 100% mastery

  19. AlL classes: 70.1% • Per 5: 73% • highest score: Xavier Cruz Jalisa Ferguson Jamie McKiernan 100% mastery

  20. AlL classes: 70.1% • Per 6: 66.2% • highest score: Justin Braun 100% mastery

  21. Topic: Distance-Time Graphs

  22. a SCALAR quantity which refers to “how fast an object is moving” SPEED VELOCITY a VECTOR which refers to “the rate at which an object changes its position”

  23. Distance-Time GRAPH A graph that shows how position depends on time

  24. The slope of a distance-time graph represents the velocity.

  25. Distance vs. Time Graphs • Slope positive = constant speed moving away from starting point

  26. Constant Speed: • Speed that does not change! • Slope of graph will be the same throughout.

  27. Distance vs. Time Graphs • Slope 0 = not moving

  28. Distance vs. Time Graphs • Slope negative = constant velocity toward starting point

  29. Determining Slope of a Graph • The slope of the graph is the change in the y-axis OVER/DIVIDED BY the change in the x-axis between two points on a graph. (Rise over Run!) • D = Change • Slope = Dy OR Slope = Dx

  30. 2 minutes at your table library voices • Fold cornell notes over • Quiz each other

  31. The starting point of movement will always be at y=0! • Between 0 and 6 seconds = ______________ velocity away from starting point. • Between 6 and 11 s = ______________ velocity toward starting point. • Between 11 and 12 s =______________ velocity away from starting point. • Between 12 and 24 s = ______________ velocity (stays at same position) • Between 24 and 28 s = ______________ velocity toward start • Between 28 and 33 s = ______________ velocity away from start.

  32. The starting point of movement will always be at y=0! • Between 0 and 6 seconds = Positive velocity away from starting point. • Between 6 and 11 s = Negative velocity toward starting point. • Between 11 and 12 s = Negative velocity away from starting point. • Between 12 and 24 s = No velocity (stays at same position) • Between 24 and 28 s = negative velocity toward start • Between 28 and 33 s = pos. velocity away from start.

  33. Graph Distance (km) 0 10 20 30 40 50 60 1 2 3 4 5 6 Time (hr)

  34. What is the velocity between t= 2 and t= 5?

  35. Whiteboards! • What is the velocity between t = 1 and t = 2? (Find the slope) • What is the velocity between t = 2 and t = 3? (Find the slope) • What is the velocity between t = 3 and t = 4? (Find the slope) • What is the total displacement traveled in this graph?

  36. Independent Practice: Constructed Response Write your own story for the following Graph: Include: • What the velocity is at each point • What direction your object is going at each point (to or away from starting point) Time (minutes)

  37. Closing 1. When is the car moving at a constant velocity forward? 2. When is the car moving at a constant velocity backward? 3. When is the car not moving?

  38. Do now wedmesday • What does this slope tell us on a Distance-Time Graph? (use your notes from yesterday if you need help)

  39. Reminders • Typed lab report due Friday- one per student, not one per group • Grades close for Interims tomorrow • Date for science fair display will be changed. I need to get word about getting the boards so do not make yours yet.

  40. agenda • Do now • Quick review • Practice- D-T graphs in groups • Independent Practice • Closing

  41. 1. When is the car moving at a constant velocity forward?

  42. 1. When is the car moving at a constant velocity backward 3.

  43. 3. When is the car not moving?

  44. What is the velocity between T= 0 and T = 4?

  45. What is the velocity between T= 4 and T = 10?

  46. What is the velocity between T= 10 and T = 14?

  47. Practice

  48. Independent Practice • SILENT DURING IP OR RECEIVE A DETENTION • WHEN DONE, ASK FOR THE KEY No closing today

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