Voltage

Batteries are essential to our lives because we use them to power our appliances. The batteries power can be explained through the concept of voltage, which is what we are currently looking at in electrostatics.

Chemical energy within the battery allows it to operate and separate the negative and positive charges. In order to separate the charges, the battery must do work on the charges. This work is called voltage.

Voltage is a ratio of potential energy per charge or work per unit charge. The SI units for voltage is volts. One volt is equal to one joule/coulomb.

I can't imagine what I would do without batteries. Now that I think about it, batteries really have a lot to do with physics, especially with electric potential energy and what goes on within the battery to produce power. Thank goodness for batteries!