![]() Students learn how to use sensors to measure forces. Students work in (self-assigned?) groups to understand how to apply Newton's laws to analyze the behavior of Amonton's first law of friction. Data subject to random experimental errors can be characterized statistically (average, standard deviation) and represented graphically using error bars. The maximum static friction force is proportional to the normal force for an object on a horizontal surface (Amonton's first law of friction). Force sensors can be used to measure weight and tension forces. The forces acting on a stationary (or constant motion) object must cancel each other (zero net force, due to Newton's first law). "750 Interface" box, power and USB cables Table clamp, right-angle clamp, rods (for hanging force sensor) Guillaume Amontons, "Amontons' Laws of Friction," late 17th century. "Kinetic friction is independent of the sliding velocity." "The force of friction is independent of the apparent area of contact."ģ. "The force of friction is directly proportional to the applied load."Ģ.
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