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Page Last Updated May 19, 2010
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5/17-5/21 Write formula cards, do practice problems, complete study guide. 4/12/2010 CW: Test Ch 10 Packet 4/13/2010 Begin chapter 11 4/14/2010 Review for Test ch 10 4.15.2010 Test Chapter 10 4.16.2010 Continue ch. 11
Physics: 10/23/2010 Warm-Up = Index Cards – Useful energy, work and simple machines equations page 241 Additional useful formulas? Activity 1: Find the units for: Motion, i.e. Velocity and Acceleration Force Work Energy (for example, kinetic energy or potenr Power ACTIVITY 2: Practice with concepts and problems n Concepts questions Page 241 #1, 2, 3, 4, 5 Verbally n Calculation questions – on paper then on board page 241 #8, p. 242 #19 – 25, p. 243 #34 3/24/2010 Warm Up = Page 244 #48 Activity 1: page 244 - 5 #49 – 55 Machines and mechanical advantage ACTIVITY 2: Ramps page 345 #35 – 47 3/25/2010 Warm-Up: Build a stable ramp Activity 1: Pull a book up the ramp using a Newtonometer to measure the force in Newtons. Calculate work done. Calculate the change in potential energy. Can we estimate the work done by friction, the normal force, and the coefficient of friction? Activity 2: Page 245 #56 – 57 Critical Thinking Problems Activity 3: Begin review packet 3/26/2010 Lecture to review machines, work, and energy Write example problems for the class to solve. Continue work on review packet/Finish for HW
3/27/2010 Chapter 10 Test
3/15/2010 Work, Potential, Kinetic energies Work = Force x Distance Kinetic Energy = 1/2 mass x velocity2 Delta (Change) in Kinetic Energy = Work Potential Energy (gravity) = mgh Page 227 #1 - 5 HW Read pages 223 - 231 3/16/2010 Work at an angle between force and displacement: Work = Force x Distance x Cosine(angle) p. 229 #6 - 8 Power = Work / time p. 231 #9 - 12 HW p. 231 #1 - 5 section review Read pp. 233 - 239 3/17/2010 Machines Mechanical Advantage = Forceresisatance/Forceexerted Ideal Mechanical Advantage = Distanceexerted/Distanceresiastance Efficiency (%) = Workoutput/Workinput x 100% Efficiency (%) = Mechanical Advantage/Ideal Mechanical Advantage x 100% Simple machines - lever, pulley, wedge, wheel and axle, inclined plane, screw Compound machines - combinations of simple machines CW p. 238 #13 - 16 practice problems HW pg. 239 #1 - 4 3/18/2010 Energy and Work Review pg 241 #1 - 9 CW HW pick 5 from pg 242 #19 - 29
3/11/2010 Test Chapter 9 Momentum 3/12/2010 Review and discuss test, physics-vocabulary word search, science hangman 2/22/2010 Discuss impulse and momentum pages 200 - 206 Pg 205 #4 - 6 HW
2/23/2010 presentations of #4 - 6 by students pg. 206 #1 - 5 HW
2/25/2010 Conservation of momentum Do pg. 210 #7 - 12 2/26/2010 Do pg. 214 #13 - 16
3/2/2010 pg. 216 #17, 18 2-Dimensional collisions p. 216 #1 - 4
3/3/2010 pages 217 - 218 #1 - 10
2/23/2010
12/14/09 Forces and Motion in Two Dimensions - x and y components are independent Monday p. 170 #7 - 9 Tuesday - Wednesday Review Chapter 6 - 7.2 Thursday Test Chapters 6 - 7.2
------------------------------------------------------------------------ 12/7/09 Similar triangles, trig, and ramps HW Read pages 150-154
12/8/09 p. 151-2 #1-4, p. 154 #5 - 8, p. 154 skill review #1 - 4 HW Finish CW, read pages 155 - 161 all.
12/9/09 p. 158 #9 - 11, p. 160 #12 - 13, p. 161 #1 - 4 HW finish CW, read pages 163 - 168
12/10/09 p. 166 #14 - 16, p. 168 #1 - 3 HW Finish CW, read p. 169, Do pp. 169 - 170 #1 - 13.
------------------------------------------------------------------------ 11.19.09 Weekly wrap up 11.18.09 Pendulums Lab Revisited (10, 40, 90, 160 cm); cup and string telephone (sound waves). 11.17.09 Forces Worksheet #1 - 10 together 11.16.09 Forces Worksheet #1-10 Try them on your own ___________________________________ 11.16 Monday WS #1 - 10 11.17 Continue WS, use Spring Scales to measure forces 11.18 Pendulum lengths 10, 40, 90 cm Forces of friction - kinetic and static 11.19.09 Quiz on Forces, Friction, and Pendulums
Monday 11/09/09 pp. 145-6 #20 - 25 Tuesday 11/10/09 pp. 146 #26 - 38; start in class as a group, finish for HW Wednesday 11/11/09 Veteran's Day Monday 11/16/09 Handout Tuesday 11/17/09 Read 138 - 143; HW p. 143 #1 - 4 Wednesday 11/18/09 p. 139 #39 - 42; Thursday 11/19/09 p. 145 #10 - 19.
Monday 11/2/09 Einstein Relativity Video Tuesday 11/3/09 p. 124 #7 - 11, p. 125 #1 - 6 in groups Thursday Pendulum Lab _______________________________________________ Monday - Wednesday 10.26.09 - 10.28.09 Physics Test Wednesday Review/Correct test Thursday Introduce Forces 6.1 Friday - A Brief History of Time video with Stephen Hawking ________________________________________________________ ______________________________________ Monday 10/19 Review for Chapter 5 test
Tuesday 10/20 Chapter 5 test concepts section
Wednesday 10/21 Finish chapter 5 test
Thursday 10/22 Chapter 5 Group test
_________________________________________________________________________ Monday 10/12/09 Collect pp. 114 – 115 #77 – 79, Going Further on p. 115. Continue pages 751 – 754 #1 – 29 due Tuesday 10/13/09.
Tuesday 10/13/09 Pages 751 – 754 due, worth three grades.
Wednesday 10/14/09 Chapter 5 test worth 4 grades.
Thursday 10/15/09 Review Chapter 5 test CW: Corrections HW: Read pages 118 – 125 Do p.125 #1-6.
Friday 10/16/09 practice problems p. 119, 122, 124 #1 – 10 CW HW p. 144-5 #1-4 ____________________________________________________________________ Monday 10/05/09 Chapter 5: Position, Velocity, Acceleration
Review of Concepts Read p. 107, Summary of 5.1 – 5.4. Make flash cards of key equations. Make note cards of all relevant formulas. Reviewing concepts: pp. 107 – 108 #1 – 14 is due on Tuesday. Discuss in class
Tuesday 10/06/09 Applying Concepts pp. 108 – 109 #15 – 26.
Wednesday 10/07/09 LAB: Worth 2 grades. Get 3 stopwatches from Coach Tatem. Build a ramp using the lab table and a small angle. Time how long it takes a ball to reach various points along the ramp. Graph the data on a displacement-time graph. Estimate the velocity at each point using BOTH tangent lines and average velocity using the data. Create a velocity-time graph if possible. Estimate the ball’s acceleration using the data gathered. Assume that acceleration is constant, use the endpoint as the net displacement and the time to the final checkpoint.
Thursday 10/08/09 Critical Thinking Problems pp. 114 – 115 #77 – 79 Also do Going Further on p. 115.
Begin pages 751 – 754 #1 – 29 all due on Tuesday 10/13/09. ________________________________________________________________________ Monday 10/12/09 Collect pp. 114 – 115 #77 – 79, Going Further on p. 115.
Continue pages 751 – 754 #1 – 29 due Tuesday 10/13/09.
Tuesday 10/13/09 Pages 751 – 754 due, worth three grades.
Wednesday 10/14/09 Chapter 5 test worth 4 grades.
_______________________________________________________ Tuesday 09/29/09 Graphing Motion in One Dimension Going Further p. 115 CW pp. 109 – 111 #27 – 37 odds HW #28 – 38 evens
Wednesday 09/30/09 CW p. 111 #39 – 43 HW p. 93 #1 – 4
Thursday 10/01/09 CW pp. 111 – 113 #45 – 65 odds HW pp. 111 – 113 #44 – 64 evens
Friday 10/02/09 CW Pp. 113 – 114 #67 – 75 odds HW pp. 113 – 114 #66 – 76 evens
Physics Chapter 3 Review CW: pp. 60 #6 – 10, p. 61 #11– 16, p. 61 #24 - 25
Homework Review Students present HW problemson board Review page 749, do #1 – 6and solve.
Trigonometry is coming todeal with vectors correctly.
For a right triangle,remember SOH-CAH-TOA Sine = opposite / hypotenuse Cosine = adjacent / hypotenuse Tangent = opposite / adjacent
We will attempt about achapter a week – the goal is to complete the book or come close to that by theend of the course. Physics
Adding Vectors at RightAngles: Use the Pythagorean Theorem:
R2 = A2+ B2,
R =Resulting Vector; A, B= the two vectors you are adding at 90 degrees.
Law of Cosines: R2 = A2 +B2 - 2ABcos(x), R=Resulting vector, A, B vectors you are adding, x the anglethe two vectors create.
Examples: p. 67 #1 – 4practice problems
Subtracting vectors: add and usethe opposite vector; see p. 67 Figure 6-4.
HW p. 71 #5-10 PracticeProblems HW p. 71 Section Review #1 –4. Wednesday Physics
Review HW p. 67 #1 - 4, p. 71#5 – 10, and Review p. 71 #1 – 4.
Vector Component’s in the xand y directions.
Sine theta =opposite/hypotenuse = Ay/A Cosine theta = adjacent/hypotenuse = Ax/A
Hands-On Learning: Measurehow far the matchbox car goes. Send itat a 30 degree angle. Calculate andmeasure the x and y components of displacement, as well as the magnitude anddirection of the car’s actual pathway.
Hands-On Learning: HW: p. 76 Practice #15 – 18, P. 76 Review #1 – 4 Physics
Problem-Solving Clinic
pp. 77 – 79 #1 – 33 is due onFriday. Friday: Notion of Motion Labp. 48
Problem Solving Clinic Part II pp. 77 – 79 all
Physics 8/24/09 Different Forms of Graphs
Linear Relationships y =mx + b Slope = change in y/change in x Delta x/Delta y
Quadratic – parabola y = ax2 + bx + c
Inverse Relationship – constant product Y = a/x Alternatively, xy = a.
Class – p. 36 # 1 – 4 Pp. 40 – 41 #44 – 52
HW p. 38 #11 – 17
Tuesday Test Chapter 2 “Strongly Suggested” Review Problems: pp. 748- 749 #1 – 13.
Chapter 2 Test Objectives:
Prefixes Base and Derived units in SI Scientific Notation Arithmetic Significant Figures (sig figs) Precision versus Accuracy Slope of linear equation from graphs Quadratic and Inverse Equation graphs
Tuesday: Warm-Up: Clear your desk of everything but pencils and erasers.
Quiz Chapter 2
3.1 Motion Diagrams Position as a function of time Examples: S stands for position, not speed! S(t) = t2 – 10t + 9. S(t) = 3t + t S(t) = (3/4) t S(t) = 120/t
Motion in one dimension on a line.
p. 60 #1, 2 p. 46 #1 – 3 p. 47 #4 as a class with a demonstration
Wednesday: Review 1-dimensional motion and check the HW. A scalar tells only a quantity, such as temperature, pressure, volume, or mass. A vector has both a direction and strength (magnitude). Vectors can be broken down into their component parts of their x and y directions. Vectors can be added and subtracted. Displacement measures both the distance and direction between two points, perhaps a location and a current position. Displacement vectors are colored GREEN. Delta-d = d1 – d0 Delta-t = change in time = t1 – t0 The time interval is delta-t.
Class Review: p. 31 #1 – 4 HW p. 60 #1 – 5
Wednesday Part 2 or Thursday
Avg. Velocity = v-bar = delta-d/delta-t = (d1 – d0) / (t1 – t0).
Delta-d = v-bar * delta-t D = vt
Acceleration = delta-v/delta-t = (v1 – v0)/(t1 – t0)
Problem Sets:
CW: pp. 60 #6 – 10, p. 61 #11 – 16, p. 61 #24 - 25
HW: p. 61 #17 – 23; model and then solve to check the reasonableness of your model.
Chapter 3 Review Homework Review Students present HW problems on board Review page 749, do #1 – 6 and solve.
Trigonometry is coming to deal with vectors correctly.
For a right triangle, remember SOH-CAH-TOA Sine = opposite / hypotenuse Cosine = adjacent / hypotenuse Tangent = opposite / adjacent
We will attempt about a chapter a week – the goal is to complete the book or come close to that by the end of the course.
Adding Vectors at Right Angles:
Use the Pythagorean Theorem: R2 = A2 + B2, R = Resulting Vector; A, B = the two vectors you are adding at 90 degrees.
Law of Cosines: R2 = A2 +B2 - 2ABcos(x), R=Resulting vector, A, B vectors you are adding, x the angle the two vectors create.
Examples: p. 67 #1 – 4 practice problems
Subtracting vectors: use the opposite vector; see p. 67 Figure on bottom of page.
Coming Soon: More Trigonometry and adding/subtracting vectors by components
________________________________________________________________ PHYSICS Mr. Kalafus Week of 8/17/2009
Monday: Expectations and Introductions
Focus Question: What is the nature and use of physics?
1) Warm-Up: Index cards with parental contact info, last math class/teacher, math strangths and weaknesses 2) Introductions and ice-breaker: 2 truths and a lie 3) Procedures: a. Entering and starting class – sharpen pencil, straight to seat, check agenda for do-now (warm-up) b. Bathroom – extreme emergency only as per school rules, go during passing periods c. HW – expect HW nightly Monday through Thursday with some weekend readings or short assignments d. HW is an essential component of practice. Don’t fall behind. e. Bring your book and supplies every day f. Keep an ORGANIZED notebook with notes, HW, tests, quizzes, and handouts. g. SHOW WORK ALWAYS – USE A PENCIL – USE A CALCULATOR AS LITTLE AS POSSIBLE h. Keep a notebook – HW, Quizzes, Tests, Notes, Handouts – write the date on everything, keep organized by date. i. Class rules 4) Pre-Test? 5) Physics: the study of matter, motion, and energy a. The very small: atoms and sub-atomic particles, quantum mechanics b. The very large: cosmology, History and future of the universe, relativity c. Experiments and repeatability d. Scientific method e. A Scientific Revolution: Galileo – the Earth revolves around the sun 6) Reading in the content areas – read chapter 1 pages 3 – 10 out loud 7) HW: Bring materials to cushion an egg from a fall; read page 12. 8) HW: Answer p. 13 #1-2 in COMPLETE sentences and a coherent paragraph.
Tuesday: Concepts: Measurement in Metric/SI and Scientific Notation Focus Questions: What units do scietists use to measure? How do you convert between units? How do you use scientific notation?
1) Warm-Up: Check for understanding of the reading (multiple-choice reading quiz on chapter 1). 2) Review procedures a. Starting class on time with warm-up, read the agenda b. HW headings and organization c. HW review and collection d. Notebooks 3) Assign partners for EggDrop project; briefly discuss designs and materials 4) Metric System and Standard International measurements a. See page 16 5) Unit Conversions a. Inches -> cm b. Hours -> seconds c. Feet -> meters d. Miles -> km e. Miles/hr -> km/hr -> m/s 6) Prefixes: see p. 18 a. Kilo = 1000 b. Mega = 1,000,000 c. Giga = 1,000,000,000 d. Tera = 1,000,000,000,000 e. Deci = 0.1 f. Centi = 0.01 g. Milli = 0.001 h. Micro = 0.000001 = 1/1,000,000 i. Nano = 1/1,000,000,000 j. Pico = 1/1,000,000,000,000 7) Exponent Rules a. Product: the result (answer) to a multiplication b. Power: an exponential expression representing repeated multiplication c. Exponent: The number of times to multiply, the small number in the upper right of a power expression d. Base: The number being multiplied by itself, at the bottom of an power expression 8) Scientific Notation a. Adding and subtracting exponents in scientific notation b. Multiplying and dividing using scientific notation c. Pp. 20 – 23 #1 – 14 Guided Practice 9) HW P. 23 #1 – 4, p. 38 #1 – 6 For p. 23 #2 estimate your height in centimeters, millimeters, and meters. *** BRING EGG DROP MATERIALS ***
1) Warm-Up: An Olympic sprinter ran the 100-meter dash in 7.6 seconds. How fast did they go in meters/second? In kilometers/hour? In miles/hour? 2) Lecture a. Precision – how exact a measurement is b. Accuracy – how closely a measurement comes to its true value c. Significant Figures – How many digits to use in the answer based on precision – p. 27 #15 – 16 all parts 3) HW Q&A 4) Build Egg Drop Containers 5) P. 28 #17 – 20 6) HW: p. 39 - 40 #34 -43
THURSDAY:
1) Warm-Up: Perform the following operations using significant figures: a. The classroom measures approximately 3.5 meters wide by 9.25 meters wide by 2.7 meters tall. Find its volume to the correct number of significant figures. b. Mr. Gilfoy rides his bike 5.2 km to school. It takes him 0.30 hours to make the trip. What is his speed in km/hour? What is his speed in m/s? Give your answer to the correct number of significant figures. 2) HW Q&A. 3) Activity: a. Finish egg drop containers b. Do the egg drop: drop from 1 yard above the ground. c. Write a lab report. i. Purpose: ii. Hypothesis: iii. Procedure: iv. Materials: v. Data: vi. Analysis: vii. Conclusions: 4) Visualizing data: a. Slope = rise/run = (y2 - y1)/(x2 - x1) = delta y/delta x b. Linear Equations: y = mx + b i. D = vt c. Quadratic: y = ax2 + bx + c i. D = -9.8t2 + 19.6t + 1 ii. Height of an object thrown upward at 19.6 m/s starting 1 meter above the ground d. Inverse: y = a/x or a = xy (constant product) i. Ex: a = F/m e. Exponential: y = ax i. Ex: y = 6*2t/15 world population growth model 5) HW: pp. 40 – 41 #44 – 47 pick 3 questions to solve completely.
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