Procedures:

Obtain strips of clear tape from your instructor and perform the following experiments:

1. Place a 2-3 inch piece of tape upon the lab bench, and then place another such piece on top of it, folding a little bit of the top of each so as to make a little tab. Remove the bottom strip from the table and quickly separate the two strips, carefully noting which was on top and which was on the bottom. They should now be ``charged up''. Observe carefully how they affect each other. Try this several times, observing whether the same effects are associated with the same piece of tape (i.e., the top one or the bottom one). To do this you will need to test all the mutual interactions, such as how the tapes that were prepared on top interact, or how the bottom ones interact and so on. Be complete. It will help to hang pieces of tape on a bar as test specimens. The lab bench is an electrically insulating surface. Try preparing the tape and pulling it off of an electrically conducting surface. Does anything change? Carefully record your findings in tabular form.

2. Make a few more pairs of charged pieces and put them on the bar. Try rubbing the plastic rods with wool or cat's fur and see how the charged rods interact with the strips and record your results. Try silk and a glass rod. Try charging up random objects and seeing how they interact with the tapes. Try something weird. Record your results.
3. Lastly, try using yourself as a test object. Bring a finger nearby and record your results. If you get no deflection, prepare two new strips. In fact, you may find that you need to do this periodically during the lab. Carefully record all your results.