STOMP ROCKETS

Purpose:

1. To determine the launch angle to give a projectile its maximum range.
2. To have your rocket launch the furthest in the class.

Materials: PVC pipe launcher, 2-liter bottle (2 per group in case one breaks), duct tape, stopwatch, paper rocket (rolled, stapled, and fins attached), protractor, trundle wheel or measuring tape

Procedure:

1) Practice launching your rocket to make sure there are no leaks.

2) Set your launch angle at 15 degrees.

3) Measure and record the horizontal distance and time for a total of 3 trials. If trials are not consistent, repeat for 2 more additional trials.

4) Repeat this for 30, 45, 60, and 75 degree launch angles.

Data:

Trial	Angle	dx (m)	t (s)
1	15	.	.
2	15	.	.
3	15	.	.
avg	15	.	.
1	30	.	.
2	30	.	.
3	30	.	.
avg	30	.	.
1	45	.	.
2	45	.	.
3	45	.	.
avg	45	.	.
1	60	.	.
2	60	.	.
3	60	.	.
avg	60	.	.
1	75	.	.
2	75	.	.
3	75	.	.
avg	75	.	.

ANALYSIS:

1) On the computer or by hand, graph the launch angle vs AVERAGE horizontal distance. Add a trend line/curve.

2) What type of curve matches your data? _________________________________

3) What is the acceleration of the rocket while in flight? (Ignore any wind resistance) _________

Conclusion: CER

Claim: ___________________________________________________________________________________________________________________________

Evidence: _________________________________________________________________________________________________________________________

Reasoning: ________________________________________________________________________________________________________________________