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.