Static Electricity or Electrostatics Lab Report Homework Help | Page 2

How many types of charge did you work with in this exercise? How do you know?
If a third type of charge existed, how would it affect the two oppositely charged strips in this
activity?
Why do you think the charged ruler affected the two suspended tapes as it did?
How would you explain the attraction or repulsion between each of the suspended tapes and the
uncharged paper strip?
How would you explain the fact that a charged ruler can attract an uncharged object like the
paper bits, salt and pepper?
Part III
Recharge the second Styrofoam cup by rubbing it with the fur. Run the cup lightly over the back
of your arm. What do you observe and/or feel happening?
Bring the Styrofoam cup close to another person's hair. What do you observe? What conclusions
can you make regarding charged Styrofoam?
Part IV
Rub an inflated balloon with the fur and try to stick it to different surfaces. What can you make
the balloon stick to? Does it stick better to some surfaces? Why?