Brian+W

How does the amount of stretch in a Gazorch affect the distance of flight of a tennis ball shot out of it. If the rubber bands are stretched farther, then the tennis ball will fly farther.
 * Question**
 * Hypothesis**
 * List of Materials**
 * 1) **Plastic Funnel large enough to hold a tennis ball**
 * 2) **3.6 meters of rubber tubing. (1.8 of which is folded in half on each side of the gazorch)**
 * 3) **7 tennis balls**
 * 4) **A 30 meter tape measure**


 * Procedure**
 * 1) **Begin with the two handles of the gazorch exactly 1 meter apart.**
 * 2) **Maintain a constant angle of 30 degrees**
 * 3) **Pull the band back to 1 meter.**
 * 4) **Maintain the meter pullback and 30 degree angle and launch the tennis ball**
 * 5) **measure the exact distance of where it lands.**
 * 6) **Repeat steps 3, 4 and 5 with 1 meter, 1.5 meters and 2 meters of pullback on the band. Do each pullback distance seven times. (1 meter of pullback is in actuality making the band 1.9 meters long, adding one meter to the starting band length of .9 meters. This also means that 1.5 is actually 2.4 and 2 is actually 2.9)**
 * First set of Trials with 1m of pullback on band**
 * 1) **41 meters**
 * 2) **46 meters**
 * 3) **41 meters**
 * 4) **42 meters**
 * 5) **41 meters**
 * 6) **39 meters**
 * 7) **47 meters**
 * Second set of trials with 1.5m of pullback on the bands**
 * 1) **56m**
 * 2) **56m**
 * 3) **56.5m**
 * 4) **57.5m**
 * 5) **58m**
 * 6) **59m**
 * 7) **56m**
 * Third and final set of trials with 2m of pullback on the bands**
 * 1) **61m**
 * 2) **62m**
 * 3) **60m**
 * 4) **58.5m**
 * 5) **58m**
 * 6) **61m**
 * 7) **61.5m[[image:100_0403[1] width="487" height="404" align="right" caption="This is 2m of stretch"]]**