Question

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?

Answer 1

Not rubbing the cloth against the PVC pipe or the paper

Explanation:

A scientific control group forms an essential part of most research designs, allowing researchers to eliminate and isolate variables.

Therefore, the control group would not use the cloth to rub