Lesson 1
________ have a negative charge.
electrons
Objects with unlike (different) charges will _____, or pull toward each other.
attract
________ do not have a charge.
neutrons
A ____ ______ is a closed path through which electric current flows.
closed circuits
Most objects have an _______ number of protons and electrons, causing the object to have no charge.
equal
An ____ _____ is an open path through which electric current does not flow.
open circuit
Rubbing two objects together can cause _______ to move from one object to another.
electrons (-)
Electric current is the flow of ______ charges through matter.
negative
Objects with like (same) charges will ________, or push away from each other.
repel