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PHYSICS I UNIT 1 Motion

PHYSICS I UNIT 1 Motion. JAVA APPLETS. http ://www.walter-fendt.de/ph14e /. WILEY APPLETS. http:// higheredbcs.wiley.com/legacy/college/halliday/0471320005/simulations6e/index.htm?newwindow=true. Kinematics One – Dimensional Motion. UNIT 1 Lesson 1. Motion One- Dimensional. Do Now!.

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PHYSICS I UNIT 1 Motion

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  1. PHYSICS IUNIT 1 Motion JAVA APPLETS http://www.walter-fendt.de/ph14e/ WILEY APPLETS http://higheredbcs.wiley.com/legacy/college/halliday/0471320005/simulations6e/index.htm?newwindow=true Kinematics One – Dimensional Motion Physics I Unit 1 - One Dimentional Motion

  2. UNIT 1 Lesson 1 Motion One- Dimensional Do Now! Men’s Jamaican runner Usain Bolt won the gold in the 100.0 meter sprint with a time of 9.690 s. What was his average velocity? Honor: If his initial velocity was 0.00 m/s, what was his average acceleration? Objectives Homework Problems pg 52 #’s 43 – 50 ALL Problems pg 52 #’s 51 – 61 ODD • Using Position vs. Time Graphs • Using Data • Calculate: • Average Velocities • Average Accelerations 10.32 m/sec 2.13 m/sec 2 Physics I Unit 1 - One Dimentional Motion

  3. UNIT 1 Lesson 1 B d t 20 m 4 s vs = = A Definition of Speed • Speedis the distance traveled per unit of time (a scalar quantity). d = 20 m vs = 5 m/s Not direction dependent! Time t = 4 s Physics I Unit 1 - One Dimentional Motion

  4. UNIT 1 Lesson 1 s = 20 m B Δx=12 m A 20o Time t = 4 s Definition of Velocity • Velocityis the displacement per unit of time. (A vector quantity.) = 3 m/s at 200 N of E Direction required! Physics I Unit 1 - One Dimentional Motion

  5. UNIT 1 Lesson 1 In Class PRACTICE / DEMO Cart Rolling down Ramp Measure Displacement Measure Time Calculate Average Velocity Position vs. Time Constant Acceleration vs. Time http://webphysics.davidson.edu/physlet_resources/physlet_physics/contents/mechanics/one_d_kinematics/default.html Equations of one- dimensional motion page 51 Answer Review Concepts page 39 practice problems #’s 9 – 13 Physics I Unit 1 - One Dimentional Motion

  6. UNIT 1 Lesson 2 Do Now! The BIG 5 Navy jets launch from aircraft carriers using catapults go from 0 to launch speed in 175 feet (5.334X 101 m) in 1.45 sec. What is the average velocity as it travels down the catapult? What is the average Acceleration as it travels down the catapult? Objectives Homework Summary Sheet chap 3 terms, Solving for -Average Velocity -Acceleration, Final Velocity Page 39 practice problems #’s 9 – 13 Page 61 & 64 Practice Problems 1 – 10 ALL 36.79 m/s • Utilize THE BIG FIVE EQUATIONS!!!Equations on Page 79 (Chapter 3) • Each student should be able to solve for : • Vf when Vi, ,a and t are known • Vi when,Vf ,a and d are known • d when Vf , Vi and t are known • d when a , Vi and t are known • a when d , Vi, Vfand t are known 50.74 m/s 2 = 5.178 “g’s” Physics I Unit 1 - One Dimentional Motion

  7. UNIT 1 Lesson 2A Sep 7Vf2 = V02 + 2aΔd Do Now!. A train accelerates from 10 m/s to 40 m/s at an acceleration of 1m/s 2. what distance does it cover during this time. Using V2 = V02 + 2aΔs, we sub in values 40 for V, 10 for V0 and 1 for a. Re-arranging to solve for s, we get: ΔS = 750 m With Significant Digits ΔS = 800 m Physics I Unit 1 - One Dimentional Motion

  8. UNIT 1 Lesson 2 d = V0Δt + 0.5 a Δt2 E.g. A body starts from rest at a uniform acceleration of 3 m/s2. how long does it take to cover a distance of 100m. Using d = V0Δt + 0.5 a Δt2, we sub in values 3 for a, 0 for V0 and 100 for s. Re-arranging the equation and solving for t (using the quadratic formula), we get: t = 8.16 or -8.16 seconds. As time cannot be negative, t = 8.16 seconds. t = 8 seconds Physics I Unit 1 - One Dimentional Motion

  9. UNIT 1 Lesson 2 d = Vavg * t = (V0 + Vf)/2 × t A car decelerates from 20.0 m/s to 10.0 m/s over a period of 10.0 seconds. How far does it travel during this time period. Using d = (V0 + Vf)/2 × t, we sub in values 20.0 for V0, 10.0 for Vf and 10.0 for t. Solving for s, we get: d = 150m Physics I Unit 1 - One Dimentional Motion

  10. UNIT 1 Lesson 2 Note: • All units must be converted such that they are uniform for different variable throughout the calculations. • Time  seconds • Distance  meters • Velocity  m/s • Acceleration  m/s2 • Kinematic quantities (except time) are VECTORS and can be negative. Physics I Unit 1 - One Dimentional Motion

  11. UNIT 1 Lesson 2 In Class PRACTICE / DEMO Motion with Constant Acceleration http://www.walter-fendt.de/ph14e/acceleration.htm HOMEWORK • Pages 60 – 63 • Examples 1 and 2 Summary Sheet chap 3 terms, Solving for -Average Velocity -Acceleration, Final Velocity Page 61 & 64 Practice Problems 1 – 10 ALL REVIEW 2013 LAB I truck and bike accelerations and Velocities Physics I Unit 1 - One Dimentional Motion

  12. DO NOW SPACE SHUTTLE ORBITER Data Launch mass: about 2,040,000 kg Launch thrust: 34,677 kN sea level Three Space Shuttle Main Engines firing at 104%/1,754 kN each, Two Solid Rocket Boosters (SRB) at 14,680 kN each; EXTERNAL TANK Propellant mass: about 730,000 kg Dry mass: later reduced to 29,930 kg in later models, SOLID ROCKET BOOSTERS Empty mass: each 82,879 kg Propellant mass: each about 504,000 kg Burn time: about 124 s The total mass of the Shuttle Endeavor at launch is 3.386809 X 10 6 kg. The total Force of all the rocket engines (the three main engines and the two solid rocket boosters) at launch is 3.4677 X107Newton’s (kg-m/s2). Vi = 0.000 at launch. a) If Force= Mass* Acceleration(F=ma) what is the accelerationat Launch? = _________________________ (_______) b) After 102.00 Seconds what is the Final Velocity of the shuttle (Assume that the acceleration and mass remained constant, although it does not)? = _________________________ (_______) c) After 102.00 seconds of flight how highhas the shuttle flown (assume that the entire distance is in the “up” or “y” direction) • = _________________________ (_______) UNIT 1 Lesson 2-A Sep 10 Physics I Unit 1 - One Dimentional Motion

  13. UNIT 1 Lesson 2-A Sep 10 a) If Force= Mass* Acceleration(F=ma) what is the accelerationat Launch? = _________________________ (_______) • F = m * a • 3.4677 X107 = 3.386809 X 10 6 kg. * a  a = 1.023884 X 10 1 m/s2 • 1.024 X 10 1 m/s2 b) After 102.00 Seconds what is the Final Velocity of the shuttle (Assume that the acceleration and mass remained constant, although it does not)? = _________________________ (_______) • Vf = Vi + a*t  • = 0.000 + 1.024 X 10 1 m/s2 (102.00) • = 1.044 X 10 3 m/s c) After 102.00 seconds of flight how highhas the shuttle flown (assume that the entire distance is in the “up” or “y” direction) • = _________________________ (_______) • Vf2 = Vi2 + 2(a)(d)  • Vf2- Vi2 / (2(a)) = (d) • (d) = {(1.0444 X 10 3 m/s)2 – 0 } / (2* 1.0239 X 10 1 m/s2) • (d) = {(1.04906 X 10 6 m/s)2 – 0 } / (2* 1.0239 X 10 1 m/s2) • = 5.326163 X 104 m  5.326 X 104 m Physics I Unit 1 - One Dimentional Motion

  14. UNIT 1 Lesson 2-A Sep 10 LAB Report FORMAT Typed SECTION I: INTRODUCTION: Name: Date: TITLE:A short title for your model or experiment. OBJECTIVE: What do you hope to accomplish with your experiment / demonstration? Short one or two line statement. EQUIPMENT NEEDED: A detailed "shopping list" of items you will need to complete the experiment or model. PROCEDURE: A detailed set of instructions on how to set up you experiment / model (including diagrams if necessary), so another person may duplicate your model. Physics I Unit 1 - One Dimentional Motion

  15. UNIT 1 Lesson 2-A Sep 10 SECTION II: DATA DATA TABLES: A set of data taken from the different trial of the experiment (if more than one trial done list in a tabular format to easily follow any changes in the data from trial to trial) CALCULATIONS: Give an example of each of the equations used in the order you used them in obtaining your results. RESULTS: What happened? If several calculations and results were reached, a tabular format may be used to present the information. Include an error analysis. Suggest improvements / ideas for a better lab / demonstration. CONCLUSION: -Did you reach / accomplish your objective? -What did YOU learn while doing the experiment or model? -Use Details and specific results to prove your conclusion Physics I Unit 1 - One Dimentional Motion

  16. UNIT 1 Lesson 2-A Sep 10 Position vs Time and Velocity vs Time graphs http://webphysics.davidson.edu/physlet_resources/physlet_physics/contents/mechanics/one_d_kinematics/default.html HOMEWORK Summary Sheet chap 3 terms, Solving for -Average Velocity -Acceleration, Final Velocity ACTIVE Read Chapter 3.2 Page 65, 67, 69 Practice Problems 20, 22, 26 REVIEW 2013 LAB I truck and bike accelerations and Velocities Physics I Unit 1 - One Dimentional Motion

  17. UNIT 1 Lesson 3 LAB 1 2013 LAB I truck and bike accelerations and Velocities Objectives: Calculate Velocities and accelerations of two objects and compare results. Use LAB FORMAT for report Homework Complete LAB 1 BRING LAPTOPwith “EXCEL” for next class • Measuring times of roll • Calculate • THE ACCELERATION • THE VELOCITIES • OF A Ford Ranger ROLLING DOWN THE ACADEMIC WING HILL. Do Now Which do you think will be faster rolling down the Hill: The Bike or the Truck? Physics I Unit 1 - One Dimentional Motion

  18. UNIT 1 LESSON 4…..AGAIN Monday Sep 17 Lab Review – Excel Objectives Homework On Excel create a graph that shows a Lacrosse ball falling at a constant acceleration of 9.8 m/s2 for 30 seconds. Do Now AGAIN!!!! By Team swap labs Check Data and Calculations Read Results and Conclusion sections Evaluate Effort using EEMO Most of you were Off Track • HONORS and WARNINGS (handout) • Utilizing Excel • Plot Data and obtain Graphs of: • Position vs. Time • Velocity vs. time • Acceleration vs. time Physics I Unit 1 - One Dimentional Motion

  19. UNIT 1 LESSON 4 Physics I Unit 1 - One Dimentional Motion

  20. Lesson FIVE In Class • http://www.youtube.com/watch?v=cwZb2mqId0A • Neil Armstrong Apollo 11 (2:30) http://www.youtube.com/watch?v=QkXD79fI9iY&feature=related Fake Moon Landing (7:00) http://www.youtube.com/watch?v=MtWMz51eL0Y&feature=bf_prev&list=UL5taIxlNA_Lw Myth Busters Buzz Aldrin in Shadow (4:00) http://www.youtube.com/watch?v=hMBCfuKs9i8&feature=channel&list=UL Myth Busters Flag (4:00) http://www.youtube.com/watch?v=Wym04J_3Ls0&feature=related Myth Busters //Shadows (4:00) http://www.youtube.com/watch?v=NxZMjpMhwNE&feature=related Gravity (5:40) Physics I Unit 1 - One Dimentional Motion

  21. UNIT 1 Lesson 6 Sep 18 Data Tables and Graphs Do Now! What is the average acceleration of the A-6 Intruder as it travels down the catapult from 0.00 to 150.0 Knots (7.62 X 101 m/s) in 2.15 seconds? Objectives Homework Pg: 65 - 71 Practice Problems #19, 22, 25, 27 32 #41   • Calculate: Average Velocities from data tables (and graphs) • Calculate: Average Accelerations from data tables (and graphs) Physics I Unit 1 - One Dimentional Motion

  22. UNIT 1 Lesson 6 Position vs. time graph (velocity) x, (m) Physics I Unit 1 - One Dimentional Motion

  23. UNIT 1 Lesson 6 velocity vs. time graph (acceleration) v, (m/s) Physics I Unit 1 - One Dimentional Motion

  24. UNIT 1 Lesson 6 slope x2 Dx Dx Displacement, x x1 Dt Dt t1 t2 Time Graphical Analysis Average Velocity: Instantaneous Velocity: Physics I Unit 1 - One Dimentional Motion

  25. UNIT 1 Lesson 6 Uniform Acceleration in One Dimension: • Motion is along a straight line (horizontal, vertical or slanted). • Changes in motion result from a CONSTANT force producing uniform acceleration. • The velocity of an object is changing by a constant amount in a given time interval. • The moving object is treated as though it were a point particle. Physics I Unit 1 - One Dimentional Motion

  26. UNIT 1 Lesson 6 vo = 400 ft/s Δx =300 ft vf= 0 + Example 6:An airplane flying initially at 400ft/s lands on a carrier deck and stops in a distance of 300 ft. What is the acceleration? Step 1. Draw and label sketch. Step 2. Indicate + direction Physics I Unit 1 - One Dimentional Motion

  27. + UNIT 1 Lesson 6 Example: (Cont.) vo = 400 ft/s vf= 0 Δx =300 ft Step 3. List given; find information with signs. Given:vo = 400 ft/s - initial velocity of airplane v = 0 - final velocity after traveling Δx = +300 ft Find:a = ? - acceleration of airplane Physics I Unit 1 - One Dimentional Motion

  28. 0 -vo2 2x -(400 ft/s)2 2(300 ft) a = = Given:vo = +400 ft/s Step 4. Select equation that contains aand not t. v = 0 Δx = +300 ft vf2 - vo2= 2aΔx Why is the acceleration negative? a = - 300 ft/s2 Because Force is in a negative direction which means that the airplane slows down Physics I Unit 1 - One Dimentional Motion

  29. UNIT 1 Lesson 7 Sep 20 Aaaaaaaah!Free Fall Do Now! A lacrosse ball is dropped and falls from the BIW Crane. If the Cranes is 350.0 ft tall (107.7 meters). How long will it take the ball to hit the ground? What will the velocity be? Objectives Homework Page 74 Practice Problems #’s 42 – 46 Section Review #’s 47 Page 82 #’s 97, 100, 101 • Be able to utilize the BIG 5 Equations to calculate: • Velocity • Displacement of a falling {NO Friction} object on Earth Physics I Unit 1 - One Dimentional Motion

  30. UP = + a = - v = 0 y = + Sign Convention:A Ball Thrown Vertically Upward a = - v = + y = + y = + a = - • Displacement is positive (+) or negative (-) based on LOCATION. v = - v = - a = - y = 0 y = 0 Release Point • Velocity is positive (+) or negative (-) based on direction of motion. y = -Negative v= -Negative a = - • Acceleration is (+) or (-) based on direction of force (weight). Physics I Unit 1 - One Dimentional Motion

  31. UNIT 1 Lesson 7A Sep 21 DO NOW Q Page 82 #’s 97, 100, 101 In Class PRACTICE / DEMO Free Fall http://higheredbcs.wiley.com/legacy/college/halliday/0471320005/simulations6e/index.htm?newwindow=true Free Fall- 2 http://www.walter-fendt.de/ph14e/acceleration.htm • Page 74 Practice Problems #’s 42 – 46 • Section Review #’s 47 Physics I Unit 1 - One Dimentional Motion

  32. UNIT 1 Lesson 8 Do Now! 2 minutes A lacrosse ball is dropped and falls from the BIW Crane. If the Cranes is 350.0 ft tall (107.7 meters). It takes 5.20 seconds to hit the ground. What is the average acceleration of the ball as it falls? 2013 Lab II Gravity and Falling Balls; Calculate Gravitational - Acceleration in BATH, MEAccurately Measure a “KNOWN” height (ex: Balcony in Theater)Accurately time a Dropped ball from a “KNOWN” height (ex: Balcony in Theater)Calculate the acceleration with Initial Velocity = 0.00 m/s Objectives Homework Finish LAB REPORT Typed • Be able to utilize the BIG 5 Equations to calculate: • Velocity • Displacement • Acceleration of a moving object Physics I Unit 1 - One Dimentional Motion

  33. UNIT 1 Lesson 9 Sep 26 • You must know how to do these actions: • Calculate Average Velocities from data • Calculate Average Accelerations from data • Calculate times and distances given Average Velocities & Accelerations • Calculate Average Velocities & Accelerations given times and distances • Calculate and / or measure Average Velocities from data tables (and graphs) • Calculate and / or measure Average Accelerations from data tables (and graphs) • Calculate Acceleration due to gravity of an object in free fall • Calculate an objects velocity in free fall Constant Acceleration Motion Homework: Summary Sheet for One – Dimensional Motion DO NOW: What is the gravitational Acceleration in Bath, ME? Page 81: #’s: 81, 82, Physics I Unit 1 - One Dimentional Motion

  34. UNIT 1 Lesson 9 • In Class / Homework: • Page 80 – 83 • #’s: 81, 82, 83, 103, 107, 108, 109, 110, 111, 112, 113 • Page 85 #’s 1 – 9 ODD Do Now! 2 minutes Page 81 #83 What is the average velocity From Time 0.00 to 7.00 seconds? REVIEW Test Lesson 11 Physics I Unit 1 - One Dimentional Motion

  35. Homework: Re-DO Gravity LAB As if your weekend depended on your grade Turn In SUMMARY SHEET DO Chapter 4 What are Newton’s THREE Law’s Give and example when it they happened to YOU! PHYSICS ILesson 11UNIT 1-2 MOTION Do NOW: TEST Physics I Unit 1 - One Dimentional Motion

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