Morpheus describes the end of the world to Neo and shows him what the "real world" is actually like. He mentions that AI took over and humans scorched the sky in response to prevent them from generating energy from the sun. However, the AI started to harvest the bioelecricity from fetuses as an energy source. Important to note is that his claims on the amount of energy and heat that humans generate are not accurate.
Beakman uses ping pong balls to simulate electrons. He rolls them down a pipe that gets narrower so they pile up (resistance). In a light bulb, the resistance causes the coil to heat up and make light.
Beakman and Liza explain how static electricity works. They use plenty of real-world examples and humorous graphics in their explanation. They include atoms and electrons in their explanation.