1. Data Acquisition and Analysis The Big Idea The use of instruments to gather data can help us understand the impacts of technology systems.

2. Make a prediction! Draw the tennis ball and basketball as described in the following statement: Restate the question and include your prediction. If you place the tennis ball on top of the basketball and drop the stack on the ground, how high will the tennis ball bounce? Much higher than the original height Much lower than the original height To approximately its original height

3. Let’s try it and see what happens! Write a sentence describing the result. Discuss what you observed and write a brief explanation.

5. Bouncy-ness? Bounciness –The bounce of a ball depends on: how “lively” the ball is what surface it is dropped on and whether or not the surface is moving (such as a tennis racket)

7. “Alive and Bouncing” Coefficient of Restitution = bounciness We will use Audacity to collect sound data

8. Data Collection and Analysis Lesson 4 The Big Idea The use of instruments to gather data can help us understand the impacts of technology systems.

9. Select the “+” for a new track

10. Select “Real Instrument” Vocals with “no effects”

11. Change tempo to 60 Record Start/Stop Slide “zoom” to the far right

12. Set the computer on the floor, click “record” button, and drop the ball from eye level. Stop the recording when the ball stops bouncing. You should be able to “see” where the ball bounced.

13. Each interval is 1/16 th of a second This is 10.5 16 th ’s of a second. 10.5/16= 0.66 seconds 10.5

14. 5/11 Title and Make a list What will happen to the Tennis Ball when it is dropped with the soccer ball? Bounce higher Bounce back to original height Bounce lower

15. 2/14 Title and Make a list List some devices that could be used to collect accurate data for the following: –Traffic speed –Rainfall –Stadium attendance The Big Idea The use of instruments to gather data can help us understand the impacts of technology systems.

16. 10/12 Title and Make a list List some ________ that could be used to collect accurate _____ for the following: –Traffic speed - ________________________ –Rainfall - _____________________________ –Stadium attendance - ___________________ ____________________________________ The Big Idea The use of instruments to gather data can help us understand the impacts of technology systems.