Energy, Forces and What They Really Do
Four parts correcting the two biggest misunderstandings in basic physics. First find out where energy is actually held, then follow it to the place all energy ends up. Then discover that a force changes motion rather than sustaining it, and finish by watching forces come into balance while something is still falling at 190 kilometres per hour.
CodePLU Goal
Upgrading Human Mental Models
Learn how to think in Workflows
What Are the Different Ways Energy Is Stored?
Energy is not a substance with types — it is a quantity held in stores. Learn the main stores and build energy down into each one in an interactive playground.
Where Does Energy Go When It Runs Out?
Energy is never used up — it spreads out until it is too thin to be useful. Follow one battery worth of energy all the way to the end.
What Does a Force Actually Do?
A force does not keep things moving; it changes how they move. Learn what that difference means, and build a force down to what it changes in an interactive playground.
Why Does a Falling Object Stop Speeding Up?
A skydiver does not accelerate all the way down. Learn how growing drag brings forces into balance, and build the four stages.