Part 1:Things that attract little bits of paper are said to beelectrically charged. The attraction is one kind of electricalinteraction.Using the available equipment listed above, developaconsistent way to charge and discharge the following objects:

1.A plastic or glass rod

2.A Styrofoam plate

3.A piece of Scotch tape

a)Carefully document in your notebook each successful method forcharging and discharging the objects.a.Document any signs of staticelectricity, or any other important observations, occurring withthese methods.

Part 2:You have probably already started to wonder how it isthat objects become charged, or uncharged. To explore how somethinghappens, it’s often useful to think about when it doesn’t happen,or when you think it might not happen. For the followingexperiments, you will rub the given pair of objects together, anddetermine if they have become charged.

a)For each pair below, record your predictions (in yournotebookand on thewhiteboard) about whether or not the followingobjects will become charged.

a.Your hands

b.Two uncharged Styrofoam plates.

c.Two pieces of Scotch tape

b)After your predictions have been made, perform yourexperiments, and record your observations in your notebook.

c)For each pair, devise an explanation as to how each pairbecomes charged or does not become charged. Summarize theseexplanations in your notebook and on the whiteboard.a.Why do youthink some pairs become charged while others do not?

d)Discuss any assumptions that you made in devising yourexplanation and make note of these in your notebook.