RCW02.pdf - Recitation ClassWork 2 Physics 194 Goals Apply Newtons laws for situations involving the electric interaction Learn to visualize and

RCW02.pdf - Recitation ClassWork 2 Physics 194 Goals Apply...

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Recitation ClassWork 2 Physics 194 Goals Apply Newton’s laws for situations involving the electric interaction. Learn to visualize and understand the electric field produced by charges with the help of a simulation. Use your understanding of the electric field to explain the results of an observation experiment. 1. Imagine you have a small metal bead with charge and mass m = 10 g that is glued at one end with a vertical very thin spoke that is made of unknown material. The bead is glued to a non-conductive horizontal surface. Then you put an identical metal bead (same material, same mass, same size) with charge on the spoke that can easily slide up or down on the spoke (the friction force of the spoke on the bead is negligible). How far away from the first bead can the second bead be at rest? 2. If you are using a Windows or macOS-based PC go to and click “Run Now”. If this doesn’t work (or you don’t have a PC with you) go to a lab computer and double-click “electric- hockey_en” on the desktop. Once the “Electric Hockey” window appears check the “Trace”, “Field”, and “Antialias” boxes. a. Place a single positive or negative charge (by dragging them from the upper right corner) so that when you click “Start” the black positively charged particle (the “puck”) will end up in the goal.
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