Explore: Using the Aluminum Can interactive, investigate the interaction between an aluminum can and glass and/or rubber rods by moving the rods about the screen while observing the changes in the charges within the can. For each of the diagrams below, shade in the areas where the electrons congregate most densely. Diagram A Diagram B Diagram C Diagram D Diagram E + + Conclusions: 4. A student is puzzled by the previous simulation and gives this response: Student: I think there should be no force between the rods and the can because the can is a neutral object so it has no charge. Coulomb's Law says that when Charge = 0 then Force = 0, right? Explain what is wrong with the student's reasoning. 5. Choose the appropriate terms in the following summary: When a negatively charged object is brought near a neutral conductor, the charges in the neutral conductor shift. The (positiveegative) charges are (attracted to/repelled byot affected by) the negatively charged object and move away from it. The (positiveegative) charges are (attracted to/repelled byot affected by) the negatively charged object. In the figure, because the conductor is neutral, I should sketch the movement of these charges so that the number of positive charges is (greater than/less than/equal to) the number of negative charges. The negative charges are (closer to/further from) the negatively charged object, so the (attraction/repulsion) they experience is (stronger than/weaker than/equal to) the (attraction/repulsion) that the positive charges experience from the negatively charged object. This means that the overall net force is (attractive/repulsive/zero).6. Object A is suspended by a string from the ceiling and a negatively charged rod is brough next to it. Object A is attracted to the rod. a. What can you conclude about the net charge on Object A? b. Two students are discussing their answer to the previous question. Student 1: I think that Object A MUST be positively charged because we learned that like charges repel and opposite charges attract. Student 2: But, didn't we also learn that a neutral object could be attracted to a charged object because the positivelyegatively charged particles in the neutral object rearrange to produce a net attractive force? I think that Object A MUST be neutral. Do you agree or disagree with either or both of these students? Explain your reasoning. c. What additional test could you do to try to gain more information about the charge of Object A? 7. Taking a closer look at Diagram E, are the attractive forces from the two rods balanced out or does one of them seem to win? Can you explain this asymmetry