1. AP PHYSICS UNIT 1 Kinematics
PHYSICS LAB
HYPER PHYSICS
Section 1
One – Dimensional Motion
Displacement
Velocity (speed)
Average
Instantaneous
Acceleration
Constant
Free Fall
JAVA APPLETS
WILEY APPLETS
DAVIDSON APPLETS
University of New South Wales Lessons – Mechanics
Romac AP Physics Unit 1 Section 1

2. "In theory, theory and practice are the same.
"In theory, theory and practice are the same.
In practice, they are not."...
Albert Einstein
(1879~1955, Mathematical physicist, Nobel Prize 1921-Physics)
AP PHYSICS Multiple Choice Problems
Education dot com
LEARN AP PHYSICS
Romac AP Physics Unit 1 Section 1

3. Labs Lab AV-E1 Motion on an Incline Lab V-E2 Back and Forth Motion
Lab V-E3 Cart on a Ramp (F-150)
Lab V-E4 Determining “g” on an incline (ramp and F – 150)
Read and be able to TYPE a formal lab write up using the Lab Format provided
Romac AP Physics Unit 1 Section 1

4. Measuring and Dimensions
UNIT 1 Section 1 Lesson 1
Do Now!
Measuring and Dimensions
What are the units for Velocity?
What is the UNIT for:
Energy
Work
Heat
Homework
Page 17-19
#4, 13, 14, 16, 26, 28, 29, 37
Page A.18
Exercises 2 – 6 even
Page A.19
Exercises 1,2,3
Page A.20-21
Chapter One
SI Units
Dist = Meters
Time = Seconds
Mass = Kilograms
Density
Dimensional Analysis
Significant figures
Math Review
Romac AP Physics Unit 1 Section 1

5. Motion Chap 2 Do Now! Pages 50 – 52 Homework
UNIT 1 Section 1 Lesson 2
Motion Chap 2
Objectives
Do Now!
Using Position vs. Time Graphs
Using Data
Calculate:
Average Velocities
Average Accelerations
Men’s USA runner Maurice Greene won the gold in the 100 meter sprint with a time of 9.87 s.
What was his average velocity?
If his initial velocity was 0, what was his average acceleration?
Homework
Pages 50 – 52
#’s 5, 6, 7, 9, 14, 15, 16, 17, 18
Romac AP Physics Unit 1 Section 1

6. Average acceleration:
UNIT 1 Section 1 Lesson 2
Definitions
Average velocity:
Average acceleration:
Romac AP Physics Unit 1 Section 1

7. UNIT 1 Section 1 Lesson 2
Definition of Speed
Speed is the distance traveled per unit of time (a scalar quantity).
vs = = d t
20 m
4 s A B
d = 20 m
vs = 5 m/s
Not direction dependent!
Time t = 4 s
Romac AP Physics Unit 1 Section 1

8. Definition of Velocity
UNIT 1 Section 1 Lesson 2
Definition of Velocity
Velocity is the displacement per unit of time. (A vector quantity.) A B
s = 20 m
Time t = 4 s
Δx=12 m
20o
= 3 m/s at 200 N of E
Direction required!
Romac AP Physics Unit 1 Section 1

9. Calculate Average Velocity In Class
UNIT 1 Section 1 Lesson 2
PRACTICE / DEMO
Cart Rolling down Ramp
Measure Displacement
Measure Time
Calculate Average Velocity
In Class
Find the Equations (5) of one- dimensional motion .
Illustration 2.3: Average and Instantaneous Velocity.
Illustration 2.4: Acceleration and Measurement.
Illustration 2.5: Motion on a Hill or Ramp.
Lab AV-E1 Motion on an Incline
Romac AP Physics Unit 1 Section 1

10. The BIG 5 Do Now! Homework Objectives UNIT 1 Section 1 Lesson 3
Utilize THE BIG FIVE EQUATIONS!!!
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
when a , Vi and t are known a
when d , Vi , Vf and t are known
Navy jets launch from aircraft carriers using catapults go from 0 to launch speed in 175 feet (5.334X 101 m) in 2.15 sec. What is the average velocity as it travels down the catapult?
How far has it traveled at 1.10 seconds?
Homework
Summary Sheet chap 2 terms,
Solving for
-Average Velocity
-Acceleration
-Final Velocity
Problem Set
Romac AP Physics Unit 1 Section 1

11. Vf2 = V02 + 2aΔd UNIT 1 Section 1 Lesson 3
Example: 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
Romac AP Physics Unit 1 Section 1

12. d = V0Δt + 0.5 a Δt2 UNIT 1 Section 1 Lesson 3
Example: 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 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 seconds. As time cannot be negative, t = 8.16 seconds.
t = 8 seconds
Romac AP Physics Unit 1 Section 1

13. d = Vavg * t = (V0 + Vf)/2 × t UNIT 1 Section 1 Lesson 3
Example: 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
Romac AP Physics Unit 1 Section 1

14. UNIT 1 Section 1 Lesson 3 A Sep 10 /11
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.
Romac AP Physics Unit 1 Section 1

15. Position vs. time graph (velocity)
UNIT 1 Section 1 Lesson 3 Sep 10/11
Position vs. time graph (velocity)
x, (m)
Romac AP Physics Unit 1 Section 1

16. velocity vs. time graph (acceleration)
UNIT 1 Section 1 Lesson 3 Sep 10/11
velocity vs. time graph (acceleration)
v, (m/s)
Romac AP Physics Unit 1 Section 1

17. Graphical Analysis Dx Dt x2 x1 t2 t1 Dx Dt slope Displacement, x Time
UNIT 1 Section 1 Lesson 3
Graphical Analysis
Average Velocity:
Instantaneous Velocity: Dx Dt x2 x1 t2 t1 Dx Dt
Time
slope
Displacement, x
Romac AP Physics Unit 1 Section 1

18. Motion with Constant Acceleration
UNIT 1 Section 1 Lesson 3 Sep 10/11
In Class
PRACTICE / DEMO
Motion with Constant Acceleration
HOMEWORK
Summary Sheet chap 2 terms,
Review Lab Format and truck Lab for next class
Solving for
-Average Velocity
-Acceleration
-Final Velocity
Page 52 – 54
21, 25, 26, 31,33, 37, 41, 44, 66
Romac AP Physics Unit 1 Section 1

19. Velocity LAB Labpro - Cart Homework Objectives Measuring times of roll
UNIT 1 Lesson 4
Sep ???
Velocity LAB
Objectives
Measuring times of roll
Calculate
THE ACCELERATION
THE VELOCITIES
OF AN F-150 ROLLING DOWN THE ACADEMIC WING HILL.
Labpro - Cart
Homework
Complete LAB 1
BRING LAPTOP with “EXCEL” for next class
Romac AP Physics Unit 1 Section 1

20. Lab Review - Excel Objectives Utilizing Excel
UNIT 1 LESSON 5
Fri Sep 14
Lab Review - Excel
Objectives
Do Now
By Team swap labs
Check Data and Calculations
Read Results and Conclusion sections
Evaluate Effort using EEMO
Utilizing Excel
Plot Data and obtain Graphs of:
Position vs. Time
Velocity vs. time
Acceleration vs. time
Homework
On Excel create a graph that shows a Lacrosse ball falling at a constant acceleration of 9.8 m/s2 for 30 seconds.
Romac AP Physics Unit 1 Section 1

21. Aaaaaaaah! Free Fall Homework Objectives
UNIT 1 Section 1 Lesson 6 TUES Sep 18
Aaaaaaaah! Free Fall
Objectives
Be able to utilize the BIG 5 Equations to calculate:
Velocity
Displacement
of a falling {NO Friction} object on Earth
Do Now! TEST ends at 11:25 am
A lacrosse ball is dropped and falls from the BIW Crane. If the Cranes is ft tall (107.7 meters). How long will it take the ball to hit the ground?
What will the velocity be? .
Illustration 2.6: Free Fall.
Homework
Page 53
#’s 41, 43, 47, 48, 49, 52
Romac AP Physics Unit 1 Section 1

22. Sign Convention: A Ball Thrown Vertically Upward
UNIT 1 Section 1 Lesson 6
a = -
v = 0
y = +
a = -
v = +
y = +
y = +
a = -
Displacement is positive (+) or negative (-) based on LOCATION.
v = -
UP = +
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).
Romac AP Physics Unit 1 Section 1

23. In Class Pages 41- 42 Examples PRACTICE / DEMO Free Fall Free Fall- 2
UNIT 1 Section 1 Lesson 6
In Class
Pages Examples
2.10 – 2.11 – 2.12
PRACTICE / DEMO
Free Fall
Free Fall- 2
Romac AP Physics Unit 1 Section 1

24. Do Now! Data Tables and Graphs Objectives UNIT 1 Section 1 Lesson 7
Calculate:
Instantaneous Velocities from data tables (and graphs)
Illustration 2.3: Average and Instantaneous Velocity.
Instantaneous Accelerations from data tables (and graphs)
Calculus:
Derivative
Do Now!
What is the average acceleration of the A-6 Intruder as it travels down the catapult from 0 to 150 Knots (7.62 X 101 m/s) in 2.15 seconds?
Problem 2.1: Position vs. time graph for the T-bird.
Problem 2.4: Two balls are putted with the same initial velocity on separate greens.
Problem 2.5: Sketch velocity vs. time graph. Problem 2.7: Calculate the acceleration of 6 carts depending on the data given.
Problem 2.8: The purple truck is catching up to the yellow truck.
Homework
Pg: 54
#52 Find the inst Velocity at t= 2.0 sec
Find the inst acceleration at t = 2.0 sec
#53, #54
Romac AP Physics Unit 1 Section 1

25. Constant Acceleration Motion
UNIT 1 Lesson 8
Constant Acceleration Motion
Lab V-E4
Determining “g” on an incline (ramp and F – 150)
DO NOW:
What is the gravitational Acceleration in Bath, ME?
Would it be larger or smaller on Mount Everest? Why?
Homework:
What is the gravitational Acceleration in Bath, ME?
Formal LAB Write-up
Romac AP Physics Unit 1 Section 1

26. UNIT 1 Lesson 9 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
Romac AP Physics Unit 1 Section 1

27. AP PHYSICS I UNIT 1 Section 1 MOTION
Do NOW:
TEST
Homework:
Chapter 3
Vectors
Give and example when it they happened to YOU!
Romac AP Physics Unit 1 Section 1