Chemistry, 15.12.2021 19:00 limelight11

Charlotte completed an experiment in which she investigated and discovered that an electrically charged object can attract an uncharged object without any contact. She used a PVC pipe and small pieces of paper for her experiment. Each time, she rubbed the PVC pipe with a cloth to give it a charge and then held it over the paper. What would be Charlotte's control group in this experiment? Using the cloth and rubbing it against the PVC pipe

Taking the pieces of paper and rubbing them against the cloth

Not rubbing the cloth against the PVC pipe or the paper

Rubbing the cloth against both the paper and PVC pipe

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Charlotte completed an experiment in which she investigated and discovered that an electrically char...