1 / 11

Bounce of Glory

Bounce of Glory. Shelby Emily Lauren Clair . Problem. Does the temperature of a tennis ball affect the height of a bounce?. Hypothesis. If we measure the bounce of tennis balls at various temperatures, then the heated ball will bounce the highest. Variables.

ronat
Download Presentation

Bounce of Glory

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Bounce of Glory Shelby Emily Lauren Clair

  2. Problem • Does the temperature of a tennis ball affect the height of a bounce?

  3. Hypothesis • If we measure the bounce of tennis balls at various temperatures, then the heated ball will bounce the highest.

  4. Variables • Independent Variable: temperature of tennis ball • Dependent Variable: height of bounce in cm • Controlled Variables: meter stick, tennis ball brand, the surface, and the height that the ball is dropped from

  5. Materials • 3 new tennis balls • Meter stick • Hot Plate • Freezer • Beaker • Timer

  6. Procedure • Obtain 3 tennis balls: one at room temperature, one that has been heated in a beaker on a hot place for 5 minutes, and one that has been in a freezer for 24 hours • Place meter stick vertically on the tile floor with 0 cm pointing down. • Place the heated tennis ball at 1 meter. • Drop the tennis ball and record the height. • Do this 3 times for each tennis ball. • Repeat steps 2-5 for the frozen and room temperature tennis ball.

  7. Observations

  8. Observations/Analysis Height of a Tennis Ball Bounce at Different Temperatures

  9. Observations/Analysis Height of a Tennis Ball Bounce at Different Temperatures Height of Bounce in cm Condition of Tennis Ball

  10. Conclusion • Our tennis ball experiment proved our hypothesis correct. The heated tennis ball will bounce higher because the molecules in the rubber of the tennis ball expanded causing a higher bounce. As are trials continued, the tennis balls seemed to adapt to the surrounding temperature. The time the tennis balls were being heated or cooled could have affected are experiment greatly because the more the heat, the higher the bounce. However, the cooler the ball, the lower the bounce. Therefore, the frozen tennis ball bounced the lowest of the three. • Each tennis ball bounced right against the meter stick which helped us measure the height of the bounce. We also had a tape measure that reached higher than one meter. The purpose of the tape measure was to measure any bounces that went over one meter. Everything went well and we felt we gathered accurate results.

  11. Reflection • If we could change something to make this experiment better we would heat the ball up to higher temperature for a longer amount of time to see if the bounce was even greater than found during our testing. We would also keep the ball in the freezer for a longer period of time to see if the results would vary.

More Related