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Ballistic Device Project Overview
Ballistic Device Project Overview
Students use knowledge of kinematic formulas such as initial velocity, firing angle, and x-displacement as well as Criteria and Constraints to create a ballistic device to successfully launch a ping pong ball. Students will also apply mean, median, standard deviation, and range to review the performance of the ballistic device.
Criteria
Criteria
Use all angles between 0-90
Include a video of the launch
Must create the design
Must launch from the same elevation the ball lands.
Constraints
Constraints
2 weeks to complete constraints
No non-combustible power sources
Must fit in a 1x1x1 footprint
The projectile must be a ping-pong ball.
Sketch design:
Sketch design:
Catapult replica
One arm
Two supports
Four support beams
11” x 6” x 7” footprint
A cup for the ping pong ball
Building and Testing
Building and Testing
This video is of the building process of the catapult and the final product. It also shows two successful launches. The final device was a catapult replica consisting of one arm, two big supports, a metal dowel to hold the arm, an 11” x 9” x 10.5” footprint, and a cup for the ping pong ball.
Device’s Data:
Device’s Data:
Shortest distance - 23.08 feet
Longest distance - 28.83 feet
Median - 24.415 feet
Mean - 24.96 feet
Standard deviation - 1.67 feet
Class Data:
Class Data:
Shortest distance - 0.25 feet
Longest distance - 32.17 feet
Median - 10.31 feet
Mean - 10.22 feet
Standard deviation - 3.04 feet
Conclusion
Conclusion
The performance of the launcher was successful and fit the criteria outlined for this project. The launcher had the fourth longest distance at 28.83 feet in the class. A future iterations is strengthening the back support as it started to crack from
For future iterations, the back support needs to be strengthened
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