1. Agenda Warm-Up 5 min Physics Vocab. Words 10 min Binder Set-up 5 min
LEARNING GOALS:
A Scalar quantity has magnitude only.
A Vector quantity has both magnitude and direction.
Displacement is a change in position.
Velocity is a change in displacement.
WARM-UP:
1) If vectors point in the same direction, , then how do you calculate the resultant?
2) This vector is pointing in which direction? 
Agenda
Warm-Up 5 min
Physics Vocab. Words 10 min
Binder Set-up 5 min
Review for Quiz 15 min
Vector Notes 10 min
Speed & Velocity WS II 40 min
Add the two magnitudes.
North
HOMEWORK DUE:
Contracts & Folders

2. Vocabulary:
Relative: Motion is relative; all measurements are measured from a starting point, reference point. Every measurement is measured relative to this point.
Rate: a quantity divided by time
Scalar: a quantity, like distance, only magnitude or size.
Vector: a quantity, that has magnitude and direction

3. Binder set-up In front of dividers: Homework chart (orange)
Formula chart (purple)
Syllabus
Lab Safety Rules
Coupon (green)
Notes/Handouts
Distance & Displacement Notes II
Distance & Displacement Notes I
Physics Vocab. Chart
Sig. Fig Handout
Linear Motion Notes
“About Science” Notes
Quizzes
Daily Work
Labs
Misc.

4. Homework due September 6/7 1) Speed & Velocity WS II 2) Study for Quiz on 9/6 (A) 9/7 (B)

5. Review Linear Motion Speed & Velocity Distance & Displacement
Unit 1.3
Review Linear Motion
Speed & Velocity
Distance & Displacement

6. Distance and Displacement?

7. Distance and Displacement
Distance and displacement are two quantities which may seem to mean the same thing, yet they have distinctly different meanings and definitions.
Distance (d) is a scalar quantity which refers to "how much ground an object has covered" during its motion.
Displacement (d) is a vector quantity which refers to "how far out of place an object is from its original position"; it is the object's change in position.

8. Equal & Opposite Vectors
Example A physics teacher walks 4 meters East, 2 meters South, 4 meters West, and finally 2 meters North.
Even though the physics teacher has walked a total distance of 12 meters, her displacement is 0 meters.
Yet, when she is finished walking, she is not "out of place" – i.e., there is no displacement for her motion (displacement = 0 m). Displacement, being a vector quantity, must give attention to direction.
The 4 meters east is canceled by the 4 meters west; and the 2 meters south is canceled by the 2 meters north.
Equal & Opposite Vectors

9. Position Location of the object at a specific time
Positionfinal - Positioninital = displacement

10. Distance vs. Displacement
You drive the path, and your odometer goes up by 8 miles (your distance).
Your displacement is the shorter directed distance from start to stop (yellow arrow).
start
stop

11. What’s your Vector
Explanation
The most important distinction between “distance” and “displacement” is that distance is a scalar and displacement is a vector.
Scalars are simple magnitudes.
___You fill in_____
________________
Vectors contain information about the magnitude (size) and direction of a physical observable.
__________________
Have students list scalar quantities
Money, Time, Energy, Objects, etc…
From Geometry, what would we call a line that starts at a point, has a certain length, and points in one direction: ray
06/14/05

12. Distance vs. Displacement
Evaluation
Distance vs. Displacement
Have students measure both distance and displacement on the treasure map
(They will have to create a legend)
06/14/05

13. Summary of Concepts Distance is the length of the path traveled.
Conclusion
Summary of Concepts
Distance is the length of the path traveled.
Displacement is the length and direction of a line from start to finish.
Position is a location relative to a point of reference.
Motion is a change in position.
Displacement is a vector quantity that contains both magnitude and direction.
Slowly reiterate the important points and ask for questions. Remember to wait at least 3 seconds before moving on.
Ask if there are any new vocabulary words that need to be redefined or written on the board (we all have to speak the same language)
06/14/05

14. Speed is the distance traveled
by a moving object over
a period of time

15. Velocity is speed in
a given direction

16. Calculating Speed Speed = Distance Time
If a runner travels 100 m in 10 seconds what was his average speed?
Can solve for the other pieces too
Distance = speed x time
Time = Distance Speed

17. Chapter 4
Vectors

18. How do we draw forces?
With VECTORS
Directions of vectors are usually defined as North, South, East, West

19. An arrow is used to depict a vector.
VECTORS
An arrow is used to depict a vector.
The arrow’s length represents the magnitude of the vector.
The arrow points in the Direction of the magnitude

20. How do you get the resultant when we have 2 vectors going in the same direction
ADD their magnitudes
SUBTRACT their magnitudes

21. This “New Vector” is the Net Vector
or RESULTANT

22. Draw vectors & solve the following:
Example 1
Draw vectors & solve the following:
Determine the total displacement of a person moving 5.5m West, then 6.3m East
.8 m
5.5 m
6.3 m

23. Example 2 (Write it down)
Determine the total displacement of a person that is moving 4.5 m West, 5.6 m East and 8.1 m West.

24. Homework due September 5/6 1) Speed & Velocity WS II 2) Study for Quiz on 9/5 (A) 9/6 (B)

25. DUE TODAY:
Vocab. Chart (KEEP)
Distance & Displacement Notes II (KEEP)
“One's mind, once stretched by a new idea, never regains its original dimensions.” Oliver Wendell Holmes
DUE NEXT CLASS:
Binder/folders/CALCULATOR
STUDY FOR QUIZ
Speed & Velocity WS II