the tricep for different motions of the arm.ĭetermine the mechanical advantage of the arm when the cord is tied to different screw eyes.ĭetermine which motions of the arm (lifting, pulling, pushing, curl, throwing overhand, throwing underhand) use which of the muscles of the arm and if they use both when ratio of muscle use is used.įigure out the function of each of the joints and muscles. overhand and compare the kinetic energy imparted to the ball in each case.Ĭompare the work done by the bicep vs. Investigate how the length of the arm effects the force required to left an item.ĭetermine the work done to lift something to elbow level.ĭetermine the power developed when lifting an object.ĭetermine the work done when throwing a ball underhand vs. I plan to combine the arm model with force probes and video cameras so students can record the force required and use video analysis to analyze the motion and energy of the "hand" of the arms. Here are just a few ideas I have, I plan to introduce the models to the students will a structured inquiry activity and then lead them to open inquiry.
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