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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