(07.07 MC)
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 paper.
What would be Charlotte's control group in this experiment?
O Using the cloth and rubbing it against the PVC pipe
Taking the pieces of paper and rubbing it against the cloth
O Not rubbing the cloth against the PVC pipe or the paper
Rubbing the cloth against both the paper and the PVC pipe
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Answer:
Not rubbing the cloth against the PVC pipe or the paper
Explanation:
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