LearningCausesv1

A rubbed balloon attracts hair

Transferred electric charge creates electrostatic force.

Reddit
Output
Hair strands lift toward the balloon
Input
A rubber balloon rubbed against dry hair
Relationship

What connects the input and output?

Contact and separation transfer electrons between materials. Opposite or induced charges then attract across the small gap.

Sources

1
  1. www.weather.gov: A rubbed balloon attracts hairwww.weather.gov

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