What is the graph
about? Is it linear?
AMSTI-Bouncing Balls
Copy the chart in your notebook! We
Will use it shortly
Drop
Height
15 cm
30 cm
50 cm
70 cm
90 cm
100 cm
Bounce
Height
Groups of 3 or 4
(1) Hold meter stick
(2) Drop ball from cm height
(3) Estimate bounce height and record
data on table
Rotate so that each
person does each job once
We will do this outside if
the weather permits!
Make a first quadrant graph of
your data labeling all
necessary parts.
Questions to Answer in Notebook
(1)
(2)
(3)
(4)
(5)
(6)
(1) What variables did you investigate in this
experiment.
(2) Based on your data, predict the height for a ball
dropped from 2 meters. Explain how you made your
prediction.
(3) Predict the drop height needed for a bounce
height of 3 meters. Explain your answer.
(4) What bounce height would you expect for a drop
height of 0cm. Where would this be on your graph.
(5) Besides the drop height, what other variables
might affect the bounce height of the ball?
(6) If you swap the x-values and y-values what
would happen? Make a separate table and graph.
Use your recorded data in the table and on the
graph to answer the following.
Write all the questions 1-6 in your notebook
and answer them.
Answers to Questions
 (1) Drop height and bounce height of a tennis ball.
 (2) Answer would be twice your drop from 1 meter or 100cm.
 (3) Answers will vary but you need to find a bounce height
which would be an easy multiple of 3. For example if you had
a bounce height of 50cm or 0.5m then you could multiply the
drop height by 6 to estimate the drop height needed.
 (4) It would be zero. The point would be located at the origin
or (0,0).
 (5) Answers will vary but age of ball, wind, surface, velocity of
ball drop, etc. might be some possible answers.
 (6) Although the table would look different, the graph would
look the same.