Math 4713

Part Four—Middle Grades Majors

 

How high will a ball bounce?

 

Introduction:

Question:  If you drop a ball from 50 feel, how high will it bounce on the first bounce?

What are some things that might affect how high a ball bounces?

 

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Suppose you drop a tennis ball from 50 feet.  How high do you think it will bounce on the first bounce?  Record your guess here.___________________________________

 

Data Collection:

You will be working with a partner to gather your data.  One person will need to be the “dropper.”  This person will measure the height of the ball from the floor and will also drop the ball.  The other person will be the “eye-baller.”  This person will need to visually determine the height of the ball after the first bounce.

 

Data Entry:

 

Graphical Representations of the Data:

You are going to create a scatter plot of your data.

 

Discussion:

 

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The Movable Line:

Use Fathom’s movable line feature to position a line on the scatter plot that “fits” the data.

 

How high will the ball bounce?

The equation of your movable line can now be used to predict how high the ball will bounce if dropped from 50 feet.

 

 

 

 

 

 

 

 

 

 

 

Discussion:

 

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Before closing your Fathom file, be sure to save your work.  Save your work as bouncing_ball.ftm onto your floppy disk in drive A.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

How high will a ball bounce?

 

Data Sheet

Drop Height

(in inches)

Bounce Height

(in inches)

12

 

12

 

12

 

18

 

18

 

18

 

24

 

24

 

24

 

30

 

30

 

30

 

36

 

36

 

36

 

42

 

42

 

42

 

48

 

48

 

48

 

54

 

54

 

54

 

60

 

60

 

60