1. AP Physics Week 12 11-09-09 Through 11-13-09

2. Monday Bellwork 11-09-09 n Turn in Lab: Projectile motion (one per group) n Take out Friday’s handouts: Check Answers

3. 3D 1) 5.98 m wide 1) 5.98 m wide 2) vx = 172 m/s ; no 172 m/s is greater than 100 m/s 2) vx = 172 m/s ; no 172 m/s is greater than 100 m/s 3) 170 m high 3) 170 m high 4) 0.735 m above the ground 4) 0.735 m above the ground 5) 25m – (-14m) = 39 m 5) 25m – (-14m) = 39 m 6) 64 m/s 6) 64 m/s 7) 9.8 m/s 7) 9.8 m/s 8) 6.88 m/s @ 64 degrees below the horizontal 8) 6.88 m/s @ 64 degrees below the horizontal

4. 3E 1) 45.8 m/s 1) 45.8 m/s 2) 68.2 m/s 2) 68.2 m/s 3) 16.6 m/s 3) 16.6 m/s 4) a) 20.8 m/s (b) max height = 11.0 m 4) a) 20.8 m/s (b) max height = 11.0 m (c) max height = 22.1 m 5) 4.07 m 5) 4.07 m 6) 60 degrees 6) 60 degrees

5. Objectives TSWBAT Calculate velocity and distance values for a projectile with a launch angle between 0 and 90 degrees TSWBAT Calculate velocity and distance values for a projectile with a launch angle between 0 and 90 degrees

6. Monday n Review last week: horizontal projectiles n Friday’s work… answers (Help this Thursday morning) n HW: Continue working on “Projectiles” ( due Friday, midnight ) n “Vectors” is due Sunday at NOON n Explanations are available one minute after each assignment is due! n NOTES: Projectiles at general angle

7. Tues Bellwork11-10-09 FR Prep #1 and 2 FR Prep #1 and 2

8. Objective 1. TSWBAT Calculate velocity and distance values for a projectile with a launch angle between 0 and 90 degrees

9. Tuesday Plans NOTES: Angled Projectiles NOTES: Angled Projectiles Practice Problems Practice Problems FR Practice #1 and 2 FR Practice #1 and 2 R2-D2 Problem – Star Wars Clip R2-D2 Problem – Star Wars Clip HW: Online “Projectiles” (due Friday, midnight) HW: Online “Projectiles” (due Friday, midnight) Help on HW and secret test review materials available this Thurs. morn session only! Help on HW and secret test review materials available this Thurs. morn session only!

10. Wednesday Bellwork11-11-09 Take out your: Take out your: 1. R2-D2 problem from yesterday… 2. 2-D Projectile Notes 3. Vectors Notes (given last week)

11. Objective 1. TSWBAT define a vector vs. a scalar quantity 2. TSWBAT add, subtract vectors or multiply them by scalars

12. Wednesday Last Projectiles day: Finish Notes and R2-D2 problem Last Projectiles day: Finish Notes and R2-D2 problem NOTES: Vectors day 1 of 3 NOTES: Vectors day 1 of 3 HW: Online Projectiles should be completed tonight (due Friday, midnight) HW: Online Projectiles should be completed tonight (due Friday, midnight) Start Vectors assignment (due Sunday at NOON) Start Vectors assignment (due Sunday at NOON) Angled Projectiles FR Quiz tomorrow! Angled Projectiles FR Quiz tomorrow! Help session at 7:30 tomorrow morn Help session at 7:30 tomorrow morn

13. Thursday Bellwork11-12-09

14. Objectives 1. TSWBAT resolve vectors into horizontal and vertical components 2. TSWBAT add non- perpendicular or parallel vectors

15. Thursday FR Quiz – Angled ProjectileFR Quiz – Angled Projectile NOTES: VectorsNOTES: Vectors Clicker quiz tomorrow on basic vector conceptsClicker quiz tomorrow on basic vector concepts HW: “Projectiles” ( due Friday, midnight )HW: “Projectiles” ( due Friday, midnight ) n “Vectors” is due Sunday at NOON

16. Friday Bellwork11-06-09

17. Objectives 1. TSWBAT use vector addition to solve relative motion problems

18. Clicker Quiz: Vectors #1. What do vectors have that scalars do not? a) Style b) Direction c) Magnitude d) Units

19. #2. What is the sum of two or more vectors called? a) Resultant b) Component c) Scalar d) Magnitude

20. #3. What is a part of a vector, which may be either horizontal or vertical, called? a) Resultant b) Component c) Scalar d) Magnitude

21. #4. Refer to the triangle below. If you have side “R” and the angle opposite of side “Y”, which trigonometric function would you choose to find side “Y”? Refer to the triangle below. If you have side “R” and the angle opposite of side “Y”, which trigonometric function would you choose to find side “Y”? a) Sine b) Cosine c) Tangent d) Cotangent

22. #5. Find the hypotenuse of this triangle. a) 3 b) 4 c) 5 d) 16 e) 25

23. #6. When adding vectors, how do you draw them? a) Head to head b) Tail to tail c) Head to tail d) As little stick figures with party hats on dancing a merry jig

24. #7. (T/F) When adding 2 or more vectors, you may add them in any order and still get the same result, as long as you maintain their correct direction and length. a) True b) False

25. #8. What does the length of any vector represent? a) The vector’s direction b) The vector’s resultant c) The vector’s component d) The vector’s magnitude

26. #9. What does the length of a displacement vector represent? a) The speed of the object or person b) Direction traveled c) Distance traveled d) The strength of the acting force

27. #10. What does the length of a velocity vector represent? a) The speed of the object or person b) Direction traveled c) Distance traveled d) The strength of the acting force

28. Friday Vectors Clicker Quiz – Reviewing yesterdayVectors Clicker Quiz – Reviewing yesterday Finish Vectors notes: 5 steps to component addition: Draw Find Add Draw Find (D F A D F) (Next slide) and Relative Motion ProblemsFinish Vectors notes: 5 steps to component addition: Draw Find Add Draw Find (D F A D F) (Next slide) and Relative Motion Problems Vectors FR practice with partnerVectors FR practice with partner n HW: “Projectiles” ( due tonight, midnight ) n “Vectors” is due Sunday at NOON n Check the explanations before Monday, write down any questions you still have n Ask your questions in class Monday to review for the exam. (next Tuesday and Wednesday)

29. The 5 steps of Component Addition 1. vectors on X-Y plane 2. x and y Components for each vector 3. all x components and y components for total X and total Y components 4. the total X and total Y components head to tail. Draw the Resultant from the tail of the X to the head of the Y. (Makes the “Big Triangle”) 5. the Resultant’s magnitude (use Pythag.) and direction (use inverse tangent)