Electrostatic Forces
The picture of tape shown above shows the repulsion between the two pieces of tape. A charged is created in the piece of tape when they are pulled off. Depending on the way they were oriented they either repelled or attracted each other.
Here is the qualitative understanding of what we did with the tape experiment.
Like Charge Repulsion Experiment
Logger pro was used to determine the repulsion force verses the distance in the movie of a charged ball being pushed toward another like charge ball. This graph show that the force of the electrical repulsion is inversely proportional to the square of the distance.
In this photo we are showing that Coulombs law accounts for the inverse relationship between the force and the distance we saw in the graph.
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