The performance of our final product (Trebuchet model that actually functions):

Success Criteria:

1. Developed a prototype that can shoot a ping-pong ball using knowledge of the physics of a golf swing.
2. Demonstrate an energy transfer (Gravitational potential energy –> Kinetic energy).
3. Complete the prototype before the due date.

Did I achieve it?

As a group, we (James and Kyle) achieved the success criterion. We developed a prototype that shoots a ping-pong ball flawlessly when it functions, even though sometimes the device will fail to launch due to some inaccurate placements of some components. We did demonstrate a primary transfer of some kind, which is gravitational potential energy to kinetic energy. After the device is triggered, the weight drops, which creates gravitational potential energy; however, when the projectile releases, it makes kinetic energy. And also, as you can see in the video, we definitely finished constructing this product before the due date.

What impact did your initial problem analysis have on your planning?

We had to consider both the time and the capability of the product we would make. Since we only have a limited amount of time to create this product (5 lessons), completing a massive outcome in time is challenging, such as a trebuchet. We solved this problem by reducing the amount of material we would use and the volume of the trebuchet.

If our group was given more time what could we have done differently?

If our group was given more time, we will definitely make the size of the trebuchet bigger since it’s going to throw the ball farther. We will also improve the release mechanism because right now, it is hard to let it function.