Social Studies, 04.12.2020 02:20 jaclynnlyidaowdxnq

A student hangs a pith ball from a stand using thread and rubs a glass rod with a silk cloth. Upon bringing the glass rod near the pith ball, the student observes that the pith ball is attracted toward the glass rod, as shown
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glass rod
pith ball
How can the observation best be explained?
A. The glass rod exerts gravitational force, cause it to attract the pith ball. B. The pith ball exerts a repulsion force toward the glass rod, causing the attraction. C. An electric field exists between the glass rod and the pith ball, causing the attraction. D. Electric charge in the string transfer to the pith ball, causing it to attract the glass rod.

A student hangs a pith ball from a stand using thread and rubs a glass rod with a silk cloth. Upon

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