The students first built a Lego Fly Wheeler, which can be used to get impression of the rotational moment of inertia. They conducted the experiments to observe the travel distances under the different fly wheeler weights. During the experiment, the students need to use the wheeler with different weights, thus the arm energy to get up to the same approximate initial speed are different. Due to the gearbox system connecting with the fly wheeler, the heavier the wheeler is, the more amount of energy is stores to transfer to moving or kinetic energy. The STEM information behind this section is the rotational moment of inertia and the gearbox system. All the students finished the model building part and did the experiment with different level. They enjoyed this section.
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