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PIRA Code(s)
Set up time
1 minute
Physics and Science Concepts
Electrostatics, Coulomb’s Law
Charge the rod by rubbing it the through the cloth provide or on your shirt. Hold the rod near a pith ball. The two balls will repel each other. The PVC gives a positive charge and the acrylic rod gives negative charge.

A charged PVC or acrylic rod is used to charge the pith balls. The two will repel each other.