A battery consist of one or more units called electric cells. Each cell has all the chemicals and parts needed to produce an electric current. It's the basics for aircraft wing design explaining that air flowing over the upper, curved part of the wing moves faster than the air on the underside of the wing so that the pressure underneath is greater and hence causes lift. C capacitor - a device that stores electric energy in the form of an electric charge. Celsius - a unit of measurement for temperature.
Chemical reactions involve the formation or destruction of bonds between atoms .
Electricity must flow in a circuit to do useful work. This effect describes the tendency of moving air of fluids to follow the nearby curved or inclined surface. D decibel - a unit of measurement for sound, it measures the loudness or volume of the sound waves. E electric current - see current . Electrons are found at varying distances from a atom's nucleus.