Question

An electroscope is a device that detects charge on objects that touch it or are brought near it. John rubs a piece of cotton fabric on a plastic rod and then touches the rod to the electroscope.
Answer
John charges the rod through friction, then charges the electroscope through conduction.

Answer 1

Hi Mandy!

Question - An electroscope is a device that detects charge on objects that touch it or are brought near it. John rubs a piece of cotton fabric on a plastic rod and then touches the rod to the electroscope.

Answer - John charges the rod through friction, then charges the electroscope through conduction.

Why - When the question states the John rubs the fabric on a plastic rub that is an example of friction, that conducts charge through a electroscope.

Hope This Helps :)

Answer 2

Answer:

Static Electricity/John charges the rod through friction, then charges the electroscope through conduction.

Explanation:

The answer is Static Electricity. When you say static electricity, there is a certain imbalance in the particles present on the surface of the material. That is why the electroscope was able to detect static electricity from the piece of cloth and plastic rod.