Unit 3 Chapter 11 Day 1OBJECTIVE:
Identify frames of reference and describe motion.Distinguish distance vs. displacement.
Calculate displacement using vector addition
•Do Now:• Chapter 11 Vocabulary
•Today:• Exploring Distance vs. Displacement• Distance vs. Displacement Questions
• Video Field Trip – Chapter 11
•Homework:• Chapter 11.1 GRWS
New UnitNew NotebookNew Table of Contents
Friday 11/14/14
Unit 3 Chapter 11 Day 2 OBJECTIVE:
Interpret Distance Time Graphs.Calculate average speed.
•Do Now:• Distance and Displacement review•Today:• Homework 11.1 GRWS - check and review• Calculating Average Speed• Speed Machines • Average Speed worksheet
•Homework:• Chapter 11.2 GRWS
Monday 11/17/14
Unit 3 Chapter 11 Day 3 OBJECTIVE:
Interpret distance-time graphs. Investigate Average Speed
•Do Now:• The Amazing Albert Maze
•Today:• Homework 11.2 GRWS - check and review • Using Science Skills – Distance Time Graphs• The Bus Stop
• Start Speed Challenge Lab
•Homework:• Free Night
Tuesday 11/18/14
Unit 3 Chapter 11 Day 4 OBJECTIVE:
Interpret speed and acceleration graphs. Investigate Average Speed, Velocity and Acceleration.
•Do Now:• More Average Speed practice
•Today:• (core 3 ) Journey to the Bus Stop• Start Acceleration packet and problems • Speed Challenge Lab
•Homework:• Finish Speed Challenge Lab• Chapter 11.3 GRWS
Wednesday 11/19/14
Suzette’s Sprint to Science
It is now 8:59 am, but when the bell rings at 9:00 am Suzette will be late for Science class for the third time this week. She must get from one side of the school to the other by hurrying down three different hallways. She runs down the first hallway, a distance of 35.0 m, at a speed of 3.50 m/s. The second hallway is filled with students, and she covers its 48.0 m length at an average speed of 1.20 m/s. The final hallway is empty, and Suzette spring its 60.0 m length at a speed of 5.00 m/s
Unit 3 Chapter 11 Day 5 OBJECTIVE:
Interpret speed and acceleration graphs. Investigate Average Speed, Velocity and Acceleration.
•Do Now:• Forces and Motion Word Search
•Today:• Homework 11.3 GRWS - check and review• Acceleration packet and problems
•Homework:• Acceleration worksheet
Thursday 11/20/14½ day
Unit 3 Chapter 11 Day 5 1/2 OBJECTIVE:
Interpret speed and acceleration graphs. Investigate Average Speed, Velocity and Acceleration.
•Do Now:• Walking through these motion graphs…..
•Today:• Homework check and review• (core 3 ) Finish Speed Challenge Lab•Homework:• Formula Challenge worksheet
Friday 11/21/14½ day
Describe Walking through these motion graphs…..
Unit 3 Chapter 11 Day 6OBJECTIVE:
Interpret speed and acceleration graphs. Investigate Average Speed, Velocity and Acceleration.
•Do Now:•Word Wise Chap 11• TURN IN Formula Challenge
•Today:• Velocity and Acceleration Graphs• Chapter 11 Notes – Motion
•Homework:• Textbook pg 352 #25-31
Monday 11/24/14½ day
Unit 3 Chapter 11 Day 6 1/2OBJECTIVE:
Interpret speed and acceleration graphs. Investigate Average Speed, Velocity and Acceleration.
•Do Now:• ?•Today:• CSI: Bullets a Flyin’ • Study Guide and problems
•Homework:• Study Guide and problems…
Due Monday 12/1/14
Tuesday 11/25/14½ day
GEO BEE11/26/14
Do Now:•Thanksgiving Puzzles
Today:•Geography Bee Preliminary Rounds…Select 2 students per class
Homework:• Study Guide and problems…
Due Monday 12/1/14
Unit 3 Chapter 11 Day 7OBJECTIVE:
Interpret speed and acceleration graphs. Investigate Average Speed, Velocity and Acceleration.
•Do Now:• R & R Motion
•Today:• Study Guide questions and problems• 20 Questions Review game
•Homework:• Study for Quiz
Monday 12/01/14
Unit 3 Chapter 11 Day 8OBJECTIVE:
Demonstrate knowledge of Frame of Reference, Distance vs Displacement, Average Speed, Velocity and Acceleration.
•Do Now:•Do Now folder – 7 pages•Clear your desks. Get a calculator.•Today:•Chapter 11 Quiz•Notebook – 18 pages
•Homework:
Tuesday 12/02/14
Displacement along a line
Calculating Average Speed
Section 11.2
a. speed (or direction) b. direction (or speed)c. m/s2
Section 11.3
Measuring Acceleration
Section 11.3
Distance-Time Graphs for Motion of Three Cars
Section 11.2
Distance-Time Graph of Accelerated Motion
Figure 18
Speed-Time Graphs
Figures 16 and 17
PHYSICS UNITChapter 11 - Motion
Chapter Summary
Frame of Reference
A frame of reference is necessary to describe motion accurately
FoR is a system of objects not moving with respect to one another
Relative motion describes movement from different FoRs Ex: Looking at someone sitting next to
you in a car vs. someone standing on the street corner watching the car vs. the billboard across the street
Distance vs D isp lacement
Distance is the total length of the path between two points
Displacement is a vector describing the ending point compared to the starting point. It includes: The direction from starting point The length of a straight line from
the starting point to the ending point
The SI unit for length is the meter (m)
Solve…1. A caterpillar travels 5 m east, 2 m
north, 7 meters west, and 3 m south. a. What is the caterpillar’s total distance? b. What is the caterpillar’s displacement?
2. A science textbook is moved once around the perimeter of a table that is 1m by 2m and ends up in its initial position.a. What is the books total distance?b. What is the book’s displacement?
Average Speed Speed is the change in distance
divided by the change in timeV= D
T Variations of the formula
T= D and D=V x T V
Units of SPEED and VELOCITY are m/s
The SI unit for time is second (s) Instantaneous Speed is how fast a
speed is changing at a specific instant (speedometer)
VelocityVelocity is a vector.To describe a vector you must have both a magnitude (some kind of number) and a direction Ex : 5 m south, 10 km left, 2 inches forward
Circular paths experience a continuous change in velocity because the direction is constantly changing
Velocity
Combine velocities by vector addition If both are in the same direction
ADD If they are in different directions
SUBTRACT
Solve…
Headwind
Tailwind
Solve…
1. A runner completes a 10.0 km race in exactly 30 minutes.
A. What is the runner’s average speed in km/min?
B. What is the runner’s average speed in km/hr?
2. When the outdoor emergency warning siren at Cheryl’s school was tested, the sound from the siren took 7 s to reach her house located 2.4 km from the school. What is the speed of the sound of the siren in m/s?
Graphs
Distance Time graphs show speed (m/s) and are linear graphs.
The slope of the line (rise/run) is the speed
A Speed Time graph shows acceleration (m/s2)
Nonlinear (curved) graphs show changing acceleration
Graphs
Section 11.2
Acceleration Acceleration is ANY change in speed
or direction (any change in velocity) Acceleration can be positive
(speeding up) Or negative (slowing down) Or a result of changing direction
(turning) Instantaneous Acceleration is how
fast a velocity is changing at a specific instant
AccelerationAcceleration is the change in velocity divided by the change in time
a = (Vf – Vi)
TUnits of Acceleration are m/s2
Acceleration of Gravity (Free Fall) is
9.8 m/s2
Solve…
1. An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator is still moving upward but its speed has been reduced to 5 m/s. What is the elevator’s acceleration?
2. A plane starts to take off from a runway at 70 km/hr. It take the plane 30 seconds to get to that speed. What is the plane’s acceleration?
Quick Chapter 11 Quiz Problem Review… SHOW ALL YOUR WORK and INCLUDE THE CORRECT UNITS
1. Distance and DisplacementAn ambitious girl scout planned her cookie selling route: from her home she walked 5 blocks east, 2 blocks north, 7 blocks west, 3 blocks south, 3 blocks east and 1 block north.
a. What is the Girl Scout’s total distance? b. What is the Girl Scout’s displacement from
her home?
2. Average Speed What is the average speed of a
helicopter that flies 50 km in 20 minutes and then 30 km in 10 minutes?
3. Acceleration An elevator is moving upward with a
speed of 16m/s. Four seconds later, the elevator stops on the sixteenth floor. What was the elevator’s acceleration?
Quick Chapter 11 Quiz Problem Review… SHOW ALL YOUR WORK and INCLUDE THE CORRECT UNITS
Chapter 11 Formulas
Average SpeedV = D D = T * V T = D T V
AccelerationA = (Vf – Vi) T = (Vf-Vi) T A
Show your work! Include units!