To meet the requirements of this challenge you must design and construct a ballistics device to throw a designated projectile the farthest distance with the most accuracy. The throwing arm for this device is limited to a yardstick. The energy to throw the projectile must come from a falling weight.
Define the Problem—review these rules and write a synopsis in your engineer's notebook. Research the topic using available resources.
Generate Concepts—brainstorm ideas. Sketch possible solutions. Decide on a solution to develop further.
Develop a Solution—sketch the final design in your engineer's notebook. Show it to the teacher for
Construct and Test a Prototype
Construct the device out of scrap or other materials approved by the teacher.
Test the device by throwing the projectile five times.
Evaluate the Solution—compare your performance to other teams in the class. Decide on ways to improve your device.
Present the Solution—provide a written report in the informational report format or an oral
Throw the projectile five times. Record the distance each time.
Performance will be based on your longest flight of the five minus the standard deviation of the range
achieved over five flights.
The device may be modified and retested as desired.
This is an activity for teams of 2 or 3 students.
Your weight must be readily removable and shared with other teams.
The throwing arm is limited to one yardstick to be provided by the teacher.
A length of ¼ inch dowell may be used for the axle.
The device must be constructed out of scrap material, material brought in by the student, or otherwise approved by the teacher
Compressed air, explosives, and any other energy source than a falling weight is not allowed.
Additional Constraints if Time Limited
Throw only for distance, who can throw the world or a marshmallow the farthest.