What happens when two insulating materials rub together?
Electrons can be transferred from one material to another, charging the materials.
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What should be observed about the gold leaf electroscope at the start?
It should be in the uncharged position with the gold leaf hanging down.
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What should be observed when the charged rod is brought near the electroscope?
The gold leaf should deflect.
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What should be observed when the charged rod is brought near a stream of water?
The stream of water should be deflected.
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