IB1 Chapter 2 Noteguides (1)

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IB Physics Linear Kinematics (Chapter 2) Syllabus Text: Physics 6 th edition by Douglas Giancoli Block In Class Due on this class 1 Sept 4/5 -Hand out Syllabus/Course Policy -Speed Trap lab outside DI -Calculating Speed/Sig Figs -Information card -Video Flip 1B-1E/Noteguide Bring a calculator, a writing utensil, and paper Turn in: Completed information card 2 Sept 6/9 -Seating in Quad Pods -Speed Trap Example GW -Uncertainty worksheet, Speed Trap Lab, FA 1.1 Video - Tour of the website (I will email you a link) VF: 1A Sig Figs (optional) VF: 1B-1E Uncertainty Practice: Uncertainty Worksheet 3 Sept 10/11 SA 1.1 Uncertainty (first 30 minutes) VF -2C-Acceleration DI -Vector Nature of Velocity Turn in: FA 1.1 4 Sept 12/13 DI -Example Kinematics GW -Solving Kinematics Problems P2.3 GW -FA 2.3 - suvat flashcards/Data Packets/names on calculators! VF: 2C, 2D Kinematics Practice: Practice for 2.3 5 Sept 16/17 DI -Demos for Free Fall GW -Solving Free Fall problems Lab -Get tapes for Moving Plots DI -How to analyze your tapes VF: 2H Free Fall Problems Practice: Practice for 2.3 6 Sept 18/19 SA 2.3-Kinematics (first 30 minutes) VF -2F-Displacement Graphs DI -Tangent Lines for slopes Turn in: FA 2.3 Practice: Practice for 2.3 7 Sept 20/23 GW -Work on Graphs of motion -Demo of Plot Matching lab VF: 2G Velocity Graphs Practice: Practice for 2.4 8 Sept 24/25 Lab -Air Rocket data gathering GW -Labs Practice: Practice for 2.4 9 Sept 26/27 SA 2.4-Free Fall (first 30 minutes) GW -Labs Turn in: FA 2.4 1 Sept 30/ Oct 1 DI -Vector Components GW -Labs or VF 2 Oct 2/3 More on Vectors! VF: 3C, 3D, 3E Turn in: Moving Plots lab Turn in: Air Rocket lab Assignments 4 Labs: o Speed Trap Lab – done the first day of class, written up the second day. No handout o Air Rocket Lab-outdoors o Moving Plots Lab – tape timer dots thingy o Plot Matching Lab – matching the plots on the computer/written note saying you did it. No handout 3 Formative/Summative Assessments: o 1.1 Propagation of Uncertainty o 2.3 Basic Kinematics o 2.4 Free Fall Kinematics Handouts
Significant Figures (sig figs) 1. The leftmost nonzero digit is the most significant digit 2. If there is no decimal point, the rightmost nonzero digit is the least significant digit 3. If there is a decimal point, the rightmost digit is the least significant digit even if it is a zero . 4. All digits between the least and most are also significant. 3010 3010.00 20 20. 20.0 30.010 3.200x10 4 100 1.0x10 2 100. 0.012 0.000150 37 people in a class 50,000 at a rally In college you will learn some rules about propagating sig figs when you do calculations, but for now let's round our answers to the operand with the fewest sig figs.
Noteguide for Uncertainty - Videos 1B, 1C, 1D, and 1E Name 1B - What uncertainty is and what it means: For the value 5 ± 2 We think the value is 5 , but it could be as big as and as small as . The absolute uncertainty is and the fractional uncertainty is or % The rule for finding the uncertainty of a collection of repeated measurements: The rule for estimating uncertainty when measuring something on an analog scale: (like a ruler) The rule for estimating the uncertainty of a digital meter: Propagation of Uncertainty: (How to find the uncertainty of a calculation) 1C - Adding or subtracting the rule is: Examples See if you can get these - they are solved in the example problem videos that follow the main video: (45 ± 3) + (12 ± 2) = ?? (12.1 ± 0.3) - (4.5 ± 0.6) = ?? (11 ± 3) - (7 ± 2) = ?? (2.3 ± .1) + (3.6 ± .3) (7.6 ± .4) - (2.5 ± .3)
Answers: 57 ± 5, 7.6 ± 0.9, 4 ± 5
1D - Multiplying or dividing the rule is: With percents: (first video) (5 ± 10%) x (20 ± 15%) With absolute uncertainty: (second video) (Write the weird math expression here) Example: A metal plate measures 21.1 + 0.5 cm by 15.3 + 0.1 cm. What is its area? Step 1 - Step 2 - Try these examples: (Again - solved on the website) (45 ± 1) x (12 ± 1) = ?? 540. ± 57 (30.0 ± .7) / (1.2 ± .1) = ?? 25 ± 2.7 1E - The rule for powers: (Write the math expression here) Example: A cube measures 2.52 ± 0.05 cm on a side. What is its volume in cc? Step 1 - Step 2 - Try these examples: (4.5 ± 1.0) 2 = ?? 20.3 9.0 25.0 ± 0.2
5.000 0.020??
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