What is the graph about? Is it linear? 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

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)(1) What variables did you investigate in this experiment. (2)(2) Based on your data, predict the height for a ball dropped from 2 meters. Explain how you made your prediction. (3)(3) Predict the drop height needed for a bounce height of 3 meters. Explain your answer. (4)(4) What bounce height would you expect for a drop height of 0cm. Where would this be on your graph. (5)(5) Besides the drop height, what other variables might affect the bounce height of the ball? (6)(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.