What is the graph about? Is it linear?

1
AMSTI-Bouncing Balls

• What is the graph about? Is it linear?

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AMSTI-Bouncing Balls
Drop Height Bounce Height
15 cm
30 cm
50 cm
70 cm
90 cm
100 cm
Copy the chart in your notebook! We Will use it
shortly
3
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!
4
Make a first quadrant graph of your data labeling
all necessary parts.
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Questions to Answer in Notebook

• (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.
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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.