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Physics Fall Semester, 4° & 6

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Link to California Physics Content Standards

  • Gradebook Legend (assignments have the point value noted at the top of column, NG is non-graded assignment):
    • ab: student absent (turn in assignment per student handbook)
    • rt: student absent due to retreat
    • rl: assignment received late (no points awarded, but receipt of assignment is acknowledged)
    • mi: missing (0 points awarded)
    • wv: assignment waived
    • footnotes: most common 3: homework reprise, 4: test corrections , 6: excellent assignment
  • Rubric for Homework
    • Full Score: All problems attempted with picture, knowns, unknown, worked equations, proper use of units, answer.
    • Deductions for: illegibility, lack of work/equations/units

Test corrections available up to 80%: Be prepared to demonstrate the correct answer. Work on answers with the TA's during physics homework parties (have the TA initial the test).

  • Week of 8/24/2007
  • Introduction to Physics, Conversions
    • Meeting 1 (Activity Schedule)
  • Week of 8/27/2007
  • 1D Motion and Conversions. Weekly Class Recorders 4th:Roland A, Adrienne A, 6th: J.C., Janelle B, Sean B
    • Meeting 1: Motion, Unit Conversion, Distance & Displacement
      • HW Read pp. 40-42, Displacement Worksheet, Conversion Handout (Due Meeting 2)
      • Math and Exponent Review Due 9/4/07 (Assessment, no answers provided)
    • Meeting 2: Review Lab, Average and Instantaneous Velocity, Vector Identification
    • Meeting 3: Bring Running Shoes!!, Speed and Velocity
    • Meeting 4: Quiz (Unit Conversion, Integer: x, t, Interval: delta x, delta t, Distance and Displacement)
      • Changing Velocity and Acceleration
      • Collect Lab
      • Review HW p. 44 #4-5
      • Notebooks Collected
      • Math Review Sheets (both) due Tuesday.
        • Program steps to solve quadratic equations using the quadratic formula
        • These are program steps, create a name such as Quadform for your program.
          • Disp "AX²+BX+C=0"
          • Prompt A,B,C
          • B²-4AC→D
          • Disp (-B+√(D))/(2A)
          • Disp (-B−√(D))/(2A)
          • DelVar A
          • DelVar B
          • DelVar C
          • DelVar D
  • Week of 9/4/2007 (Happy Labor Day)
  • 1D Motion. Weekly Class Recorders: 4th: Jessica B, Katie B 6th: Tom C, Ali C.
    • Meeting 1 : Review Notebooks, Quiz and Lab. Acceleration and Big 3 Motion equations.
    • Meeting 2: Continue: Big Three Kinematc Equations and Gravity
      • HW: Read p. 52 - 54 (you may want to start on p.51: Motion with Constant Acceleration), p.60
      • HW: p. 49 #1-5, p. 64 #4,5
      • HW Answers: p.49:1) -6 m/s^2 2) 2.5 m/s^2 3) -3.5 x 10^-3 m/s^2 4) 4.7 x 10-3 m/s^2 5) 27 sec. p.64: #4a) -22.4 m/s 4b) 2.24 seconds (you may use -10 m/s^2 for earth's gravitational acceleration. #5a) 110 sec 5b) -420 m/s
    • Meeting 3: Mechanical Universe: Gravity Discussion, Dropping Lab
      • HW: Complete Dropping Lab
      • Read p. 61-64, 68
      • Back to School Night
    • Friday: Mass of the Holy Spirit, No Class Meetings
  • Week of 9/10/2007
  • 1D Motion. Weekly Class Recorders: 4th: Tina B, Kat B 6th: Ali C, Christina C
    • Note: Acceleration due to gravity: -9.8 m/sec2 on earth (-10m/sec2 is okay)
    • Meeting 1: One Dimension Motion, Movement up and down in a gravitational field.
      • Non-zero intial velocity.
      • HW: p. 64 #2, 3, 6
        • Answers: 2a) +3.7 m 2b) 0.77 sec 3a)8.0 m/s 3b) 1.6 sec 6a)1.6m apple height<5.3 m tree house height (show work) 6b) 0.82 seconds (Due as noted in class)
        • Key for 6b) (solved two ways)
    • Meeting 2: More Big 3 with Problem Solving Ideas
    • Meeting 3: Introduce Graphing (Day 4: 6th Period)
      • HW Read p45-46, 50
      • HW p. 47 #3, p .59 #5 (Due Monday)
        • Answers: #3) B, B, no, no #5 a) 0/30s, 60/125s, 210/275s (flat) b)at all times the graph is straight (excluding the intersections) c) give average value in each interval, d) give slope (in m/s^2) for each interval, e)0/30 sec, 210/275 sec f) note inteval when velocity slope is 0, g)Positive slope, positive acceleration; negative slope, negative acceleration. Flat slope: zero acceleration.
      • Key: p.59 #5
    • Meeting 4: The Elegant Universe: Brief Introduction to Forces and Theoretical Physics. (Day 3, 6th Period)
      • Enjoy your weekend
  • Week of 9/17/2007
  • 1D Motion Unit Test Class Recorders: 4th: Nick B., Gabe B. 6th: Adrianna C. Annie Dahlberg
  • Week of 9/24/2007
  • Forces: Inertia and Force Diagrams Class recorders: 4th: Janey B. Margarita D. 6th: Annie DeMarchena, Ben D.
    • Meeting 1: Introduction to Forces and Inertia (Newton's First Law).
      • Free Body Diagrams
      • HW: Read p. 124-8, 130-133
      • HW: Force diagram worksheet (Due meeting 3)
        • Answers: Drawings for upper, Lower a) 500N-down, b) 5550N-right, c) 0 N
    • Meeting 2: Forces: X and Y Components of Force
        • Answers: X: 173 N, Y: 100N; X: 106 N, Y: 106 N; X: 12900 N, Y: 48300N
        • 201 @ 5.7 deg, 309N @ 76 deg
      • HW: Read p. 91-96 (Vector Refresher)
    • Meeting 3: Net External Forces
      • Read p. 136-140
      • HW: p. 133 1, 2, 3 p. 152 #26 a (due Meeting 1, next week)
      • Answer: 1a) 60.6N 1b) 35N 2a) 23.8N 2b) 7.73 3a)-30N 3b) 329N 3C) 330 4.5 degress left of vertical 26a) 770N @ 8.1 deg right of forward
    • Meeting 4: Newton's 2nd and 3rd Laws.
      • Net Forces from Forces at Multiple Angles
      • Acceleration due to Net Forces
      • HW: Enjoy your weekend, finish Day 3 assignment.
  • Week of 10/1/2007
  • Forces: Newton's 2nd and 3rd Laws Class recorders: 4th: Jack F., Sydney F. 6th: Annie G., Kyle H.
    • Meeting 1: Newton's 2 Laws (Acceleration is proportional to net external force, inversely proportional to mass)
      • F=ma, a=F/m
      • Weight, Universal Gravitation
      • Fan Cart Lab, write up due Meeting 2
      • HW: Read p. 141-2, p. 262-4
      • HW: Create problems/keys for Meeting 4 Quiz (due meeting 3)
        • 1) Concept (1 problem)
        • 2) Worked Problem (1 problem)
          • Net Force (Topics)
            • Forces in one axis
            • Vector Addition
            • Multiple Forces at angles
          • Force/Mass/Acceleration relationship.
          • Weight
    • Meeting 2: Newton's 2 Laws (Acceleration is proportional to force, inversely proportional to mass)
      • Vector Addition Practice
      • F=ma, a=F/m
      • HW: P. 138 #1, 2, 3, 5 (Due Meeting 4)
        • HW answers: 1)23m/s^2 forward 2)1.4 m/s^2 north 3) 6800 N east 5) 2.1 kg
    • Meeting 3: Inclined Planes and the Normal Force
    • Meeting 4: Quiz
      • After Quiz: Force Pairs, Newton's 3rd Law.
      • HW: Review p. 136-140
      • HW Problems: p. 153 #28, 29, 31 (Due Meeting 2, Week of October 8)
      • HW: Answers: #28) 28 N, 56 N (remember it will be the component of weight and the component of F) #29) 13 N down the planel #31) -20 m/s
  • Week of 10/8/2007
  • Forces: Normal Force and Friction Class recorders: 4th: Charles F., Paul G. 6th: Kat H. Robert K.
    • Meeting 1: Review Last Week's Quiz
      • Review Normal Force and Vectors
      • HW: Read and Review p. 142-147
      • HW: Problems: p. 145 #1 (Use 24 kg for mass of crate), 2, 3 (Due Meeting 3)
      • HW: Answers: 1) 0.23 2a) 870N, 670N b) 110N, 84N c) 900N, 450N d) 5N, 2N 3a) 1.5 b)1.3
    • Meeting 2: Frictional Forces
      • Friction and Coefficients of Friction
      • HW: Read p. 148, 150
      • HW: Problems: Friction Worksheet. (Due Meeting 4)
      • HW: Answers: 1a) -100N, 100N b) 20N right c) 40N d) 0.4 2a) 40 N b) 0.2 c) 100 N 3a) -.125 m/s^2 (opposes motion) b) -.0625 N (opposes motion) c) .0125 d) -.125 m/s^2, -.125 N, .0125 weight does not change acceleration or co-efficient of friction. 4a) 9000 N b) 18 m/s^2 c) 16200 N, 32 m/s^2 d) 6000 N (less force than static, therefore less acceleration. If a car skids, it does not stop as quickly).
      • Friction Worksheet Key
    • Meeting 3: Putting it all together
      • Big Three and Forces
      • And a little Friction
      • HW: Read p. 150, Key Terms and Key Ideas
      • HW: p. 149 #1-6 (be familiar wtih these problems and how to solve them). These will not be handed in.
      • HW: Answers: 1a) F(gravity) pointed down, F(air) pointed opposite motion b)F(engines) pointed up, F(gravity) pointed down c) F(gravity) pointed down, F(normal) pointed up, F(push) pointed right, F(friction) pointed left (last two can be reversed) 2a) 3.7 N 2b) 58.5 N 3a) 34 3b) 39 N 4) 0.37 (static) 0.32 (kinetic) 5) No, once air resistance (up) = weight (down), the object will have no net force and the motion (velocity) will remain the same. 6a) F(static) = F applied, F(kinetic)<F applied.
    • Meeting 4: Review for Midterm
  • Week of 10/15
  • Midterm: Unit Exam on Forces
    • Tuesday, October 16th.
  • Week of 10/22
  • Motion in 2 Dimensions
    • Meeting 1: Introduction to Projectile Motion
      • Vector/Force Review Lab (Due Meeting 2)
      • HW: Read p. 98-101 (follow sample problem 3D)
      • HW: p. 102, #1,4 (Due meeting 3)
      • Answers: 1) 5.2 meters, 4) 2.2 meters
    • Meeting 2: Projectile Motion, Launched Horizontally
      • HW: Projectile Worksheet 1 (Due meeting 4)
      • HW: Answers: 1) .55 sec, 134m 2) 39.5 m/s (about 80 mph) 3) -1.1 m 4) 5.4 m/s
    • Meeting 3: Projectile Motion, Examples of non-zero initial y velocity
    • Meeting 4: Bulls Eye Lab
      • HW: Bull's Eye Lab Write Up (One per group), Due meeting 2
  • Week of 10/29
  • Projectiles: Motion in 2 Dimensions
    • Meeting 1: Guest Speaker from Seattle
      • Warm Up and Quiz Question
      • Viewer's Guide
    • Meeting 2: Projectiles Launched at any Angle
      • HW: Read p. 102 - 104
      • HW: p. 104 #1-4 or Worksheet 2 (Due Meeting 4), you may do both
      • HW answers (p. 104): 1) yes (-2.3 meters) 2) 70 m 3) 6.2 m/s 4) 18 m/s, 6.6 m
      • HW: Key p. 104 #1-4
      • HW answers (worksheet) 1) 524 m 2) 10 m 3) No, lands at 3133 m 4) No, at 2.2 meters
    • Meeting 3: Quiz, Horizontal Launch
      • HW: p. 115 #35, 38
      • HW answers: 35a) 280,000 m b) 280 sec 38a) clears by 1 m (note: depending on rounding, you might find that it just misses b) falling (hint: to determine if the ball is rising for falling, determine the velocity at the time it passes over the goal post. If velocity in the Y direction is positive, the ball is rising, if velocity in the Y direction is negative, it is falling and if veloctiy is zero, the ball is in level flight (at the top of its arc). Use Big 3 #1 to get Vf in the Y direction.)
      • HW: Key p.115 35, 38
    • Meeting 4: Projectiles at Any Angle
  • Week of 11/5/2007
  • Motion in 2 Dimensions, Work and Energy
    • Meeting 1: Sample Test and Key
    • Meeting 2: 2D Motion Test (Bring in Notebooks)
      • HW: Read p. 168- 170
      • HW: p. 170 #1-3 (Due day 4)
      • HW: Answers: 1)1.3 x 10^7 J 2) 700 J 3) 1600 J
    • Meeting 3: Introduction to Work and Energy
      • Work
      • HW: Read p. 172-177
      • HW: p. 178 #1, 3, 4 (Due Meeting 1)
      • HW Answers: 1a) kinetic 1b) nonmechanical 1c) kinetic, gravitational potention 1d) elastic potential 3)4.4x10^-3J 4) .06 J
    • Meeting 4: Energy
      • Potentional, Gravitational
      • Guest Speaker from Seattle, WA
      • HW: Read p. 179-181
      • HW: p. 182 #1-3 (Due Meeting 2)
      • HW Answer: 1) 21 m/s 2a) 10 m/s 2b) 14 m/s 3) 14.1 m/s
  • Week of 11/12/2007
  • Work and Energy
    • Meeting 1: Kinetic and Potential Energy, Conservation of Energy
      • Energy Website: Elastic, Gravitational and Kinetic Energy (set Friction to Zero)
        • Note how total energy remains constant, but it is changed from elastic, to kinetic and gravitational and back again as the weight goes up and down.
      • HW: p. 195 #27 (Due Day 3)
      • HW Answer: 7.3 m
    • Meeting 2: Energy Conservation and Friction/Heat
      • HW: p. 199 #62 (solve b using Big Three, then speed for c and a), Due Day 4 (you may use a mass of 500 g i.e. .5 kg)
      • HW Ans: 62a) 1.45 m b) 2.0 m/s c) 5.4 m/s
      • Conservation of Energy Worksheet
      • HW: Finish Worksheet problems 3 and 4 (Due Day 3)
      • Worksheet Answers: 3) 6.3 m/s 4) 1.9 m/s
    • Meeting 3: Energy and Power
    • Meeting 4: Spring Lab
      • Continue on Energy Problems
      • Spring Lab due at end of period
  • Week of 11/19/2007
  • Work and Energy
  • Week of 11/26/2007
  • Work, Energy and Power
    • Meeting 1: Work and Kinetic Energy, Work and Potential Energy
      • HW: Read: p. 184 -188, Review p. 182 - 183
      • HW: Problems p. 186 #1-2, p. 188 #2-3 (Due Day 3)
        • Notes on #3) Work = Force x displacement. It may be best to think of two forces involved here. One force accelerates the car (F=ma), acceleration can be calculated by using the Big Three. The other force acts against air resistance. The total force is the addition of these two forces. The work is the total force x displacement. The power is this work/time.
      • HW Answers: p. 186 1) 1.9 m/s 2) 3.8 m/s p. 188 2a) 7500o J 2b) 25000 W(25 kW) 3) 23800 W (23.8 kw)
      • Quiz Keys: Kinetic Energy, Furniture Movers, Pole Vault
      • Work and Power Worksheet
    • Meeting 2: Rate of Work, Power (Tuesday Meeting Day/ Wednesday Special Schedule: Student Questionaire)
    • Meeting 3: Review
    • Meeting 4: Energy and Power Unit Test
      • Self Assessment Notebook Review (due Meeting 1, week of 12/3)
      • HW: Read p. 208-214 (for Meeting 1, week of 12/3)
      • HW: Problems: p. 209 #1-3, P. 211 #1,3,4 (Due Meeting 2, week of 12/3)
      • HW: Answers p. 209 1) 46 m/s east 2) 2500 kg m /s, right 3a) 120 kg m/s NW 3b) 94 kg m/s NW 3c) 27 kg m/s NW p. 211 1) 380 N right 3a) 9 m/s right 3b) 15 m/s left 4) 1100 N upward
  • Week of 12/3/2007
  • Momentum and Collisions
    • Meeting 1: Momentum: Definition and Calculations
      • HW: Read p. 215-217, 220, 222-227
      • HW: Problems p. 214 #3-5, p. 224 #1, 2, p.226 #1 (assume target is on a frictionless surface) (Due Day 3)
      • HW: Answers p. 214 3) No. A smaller force applied for a long time may cause a greater change in momentum 4) Impulse: Change in momentum 5a) 2.6 kg m/s downfield 5b) 130 N downfield p.224 1) 3.8 m/s south 2) 1.8 m/s p. 226 1a) .43 m/s west 1b) 17 Joules
    • Meeting 2: Change in Momentum: Impulse
    • Meeting 3: Collisions
    • Meeting 4: tbd (Weather and Supplies depending)
  • Week of 12/10/2007
  • Semester Summary
    • Activity Schedule 1: Force Concept Inventory Diagnostic
    • Activity Schedule 2:
      • Summary Presentations (4th Period):
        • Jack/Paul: Conversions
        • Nick/ Keith: Problems Solving
        • Janey/Adrienne: Big 3/Kinematics
        • Alexa/Matt: Newton's Laws
        • Kris/Kevin: Energy
      • Summary Presentations (6th Period):
        • Sean B/Robert: Displacement/Velocity/Acceleration
        • Jessica/Juan Carlos: Big 3, Kinematics
        • Mike C/Kyle: Newton's Laws
        • Annie DeM/Kylee: Power (Energy)
    • Activity Schedule 3:
    • Review Session: Monday, December 17th, 12:30 pm Room 313 (Structured problems and questions)
  • Final Exam, Wake up to Physics: First Exam: Tuesday, December 18th 8:30 am

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