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Charges can exert forces without contact - Online practice 1

Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.

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Paper charge model: A and B begin neutral. Transfer 3 electron tokens from A to B. Each token stands for one equal unit of negative charge; no protons move between the objects. Both objects together form the closed model. Afterwards bring a separate positive test charge near each without touching. This is not a high-voltage experiment.

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