1. One-Dimensional Kinematics

2. One Dimensional Kinematics  Objective: Becoming familiar with Kinematics. We will study terms such as scalars, vectors, distance, and displacement

3. Definitions:  One-dimension: straight line, to the left or to the right, up or down, east or west, etc.  Kinematics: the study of motion using words, numbers, graphs and equations

4. From the following which are scalars and which are vectors?  (A) 5 meters  (B) 30 meters/second East  (C) 20 degrees Celsius  (D) 4000 calories  (E) -10 centimeters

5. Visual describing distance vs displacement  https://vimeo.com/26479781 https://vimeo.com/26479781  4:12 – 4:50

6. Concept Question  Can you drive your car in such a way that the distance it covers is (a) greater than (b) equal to, or (c) less than the magnitude of its displacement?  In each case, give an example if your answer is yes, explain why not if your answer is no.

7. Exit Ticket  What was easy to understand?  What was confusing to understand?  Any suggestions?

8. DO NOW:  Objective: Discovering the difference between speed and velocity  You walk.5mi East to your friends house, then you walk.3 miles West to the park.  What is the distance you traveled?  What is your displacement?

9. Average Speed Problem:  My wife ran a marathon(26.2 miles) with a speed of 2.4 meters/second. How long did it take her to run the marathon?

10. Average Speed Visual:  http://www.physicsclassroom.com/mmedia/kinema/trip.cfm

11. Need help with Dimensional Analysis:  https://www.khanacademy.org/math/algebra/introduction-to-algebra/units- algebra/v/dimensional-analysis-units-algebraically https://www.khanacademy.org/math/algebra/introduction-to-algebra/units- algebra/v/dimensional-analysis-units-algebraically  Go to www.khanacademy.org and type in Dimensional Analysis (6 minute video)www.khanacademy.org

12. Conceptual Checkpoint:

13. Average Velocity Problem:  __(Name)_ sprints _______ meters in __________ seconds. If he/she takes 50 seconds to walk back to the starting line. If the “sprint direction” is taken to be positive, what is:  A) The average sprint velocity?  B) The average walking velocity?  C) The average velocity for the complete trip?

14. DO NOW:  It was a dark and stormy night, when suddenly you saw a flash of lightning. 3.5 seconds later you heard the thunder. Given that the speed of sound in air is about 340 m/s, how far away was the lightening bolt?

15. DO NOW (Honors):  A finch rides on the back of a Galapagos tortoise, which walks at the stately pace of 0.06 m/s. After 2.0 minutes the finch tires of the tortoise’s slow pace, and takes flight in the same direction for another 2.0 minutes at 12 m/s. What was the average speed of the finch for the 4- minute interval?

16. Visual of position vs. time graph  https://vimeo.com/26479781 https://vimeo.com/26479781  7:00 – 9:20

17. Graph #1 (position vs. time)

18. Graph #2 (Position vs. time)

19. Average velocity vs Instantaneous Velocity  Instantaneous Speed - the speed at any given instant in time.  Average Speed - the average of all instantaneous speeds; found simply by a distance/time ratio.