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Data Acquisition and Analysis
The Big IdeaThe use of instruments to gather data can help us understand the impacts of
technology systems.
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 heightMuch lower than the original heightTo approximately its original height
Let’s try it and see what happens!
• Write a sentence describing the result.
• Discuss what you observed and write a brief explanation.
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)
“Alive and Bouncing”
• Coefficient of Restitution = bounciness• We will use Audacity to collect sound data
Data Collection andAnalysis
Lesson 4
The Big IdeaThe use of instruments to gather data can help us understand the impacts of
technology systems.
• Select the “+” for a new track
• Select “Real Instrument”
• Vocals with “no effects”
Change tempo to 60
Record Start/Stop
Slide“zoom” to the
far right
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.
Each interval is 1/16th of a second
This is 10.5 16th’s of a second.
10.5/16= 0.66 seconds
10.5
5/11 Title and Make a list
• What will happen to the Tennis Ball when it is dropped with the soccer ball?
Bounce higherBounce back to original heightBounce lower
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.
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.