What is Voltage?

This video gave a good simplified explanation of what voltage is. It gave the definition: voltage is the measure of electric energy per unit of charge. It also reminded me of the units of measure as well as the symbols. The symbol for voltage is v and it is measured in J. This video will be good to go back to when I need a simple reminder of what voltage is and how it can be found and why you would need to use voltage. The video helped me to see how simple voltage really is and how we see it everywhere such as batteries.