1. Trebuchet Project By: L and B

2. Intro We are going to show you the angle at which a trebuchet throws a marble the farthest. We were interested in this because we want to be able to fling objects great distances.

3. We observed that the angle at which a trebuchet throws a wooden ball and a marble the farthest is unknown to us. We observed that if we do a few tests, we can find this angle with ease. We asked what angle it was, and what was the max. distance the trebuchet can fling the marble. Observation and Question

4. Hypothesis Our hypothesis is that the marble and wooden ball will go the farthest when released at a 90°. The marble and the wooden ball will go the least distance when released at a 100°.

5. Experiment Tables The following 6 slides contain our data tables. These are detailed notes on our testing. We assure you they are 100% accurate.

6. Test #Angle of Release Test #Angle of Release 1.859.100 2.10010.85 3.8511.85 4.10012.100 5.10013.100 6.10014.100 7.8515.95 8.100

7. Test #DistanceTest #Distance 1.40ft.9.40ft. 2.50ft.10.44ft. 3.40ft.11.39ft. 4.40ft.12.35ft. 5.40ft.13.50ft. 6.32ft.14.39ft. 7.40ft.15.30ft. 8.28ft.

8. Angle and Distance of Wooden Ball Test #Angle of Release DistanceTest#Angle of Release Distance 18841’ 4”99540’ 4” 210548’ 4”1010540’ 4” 310537’7”119743’ 410542’129440’ 11” 59343’ 9”139052’ 3” 610531’ 4”1410541’ 4” 710640’4”1510638’ 8” 810543’ 4

9. Test #Angle of Release Test #Angle of Release 1100990 21001090 3951190 410012100 5901390 61001495 71001595 890

10. y Test#DistanceTest#Distance 1130’942’ 236.5’1095’ 3125’1140’ 470’1240’ 5120’1350’ 6 14120’ 7100’1595’ 860’

11. Distance and Angle for Marble Test#AngleDistanceTest#AngleDistance 19581’990163’6” 210051’ 6”1010045’ 38581’119564’7” 49757’128562’ 58592’139581’ 4” 610072’148571’ 3” 79075’1510035’ 11” 885123’

12. Conclusion Our hypothesis is supported by the data. In both cases, the material was thrown the farthest at a 90° angle. The wooden ball went maximum distance of 52’ 3” and a minimum 37’7”. The marble went a maximum of 163’6” and a minimum of 45’. Both reached their maximum distance when released at a 90° angle. Both reached their minimum distance when released at a 100-105° angle.