Static Electricity

1. Static Electricity Pith Ball Puzzles

2. Like charges repel. • Unlike charges attract. • Neutral objects attract all charged objects. • Neutral objects exhibit no reaction to other neutral objects. THE LAW OF CHARGES

3. Using the Law of Charges, identify the charge of the pith balls described below. • Four balls are suspended on insulating threads. The following observations are made: a) pith ball #3 is negatively charged. b) pith ball #4 attracts all the other pith balls. c) pith balls #1 and #2 repel each other. d) pith ball #3 attracts all the other pith balls. Pith Ball Puzzle

4. Solution

5. Five pith balls are suspended by insulating threads. a) #3 attracts all except #2. b) #1 attracts all the pith balls. c) #4 and #5 repel each other. d) #2 and #3 repel each other. e) #5 is negative. Puzzle 2

6. Solution

7. 1. Do static electricity puzzles worksheet. 2. Create four new puzzles. Each puzzle must have at least six balls. Make sure each puzzle has only ONE solution. This is due next class. Homework