Energy Empire: Fan Cart
PREDICT
How this connects to AP Physics 1 (Topics 3.1-3.4): a force along the motion does work, W = Fd. The net work done on an object equals its change in kinetic energy, and when a force lifts an object, part of the work becomes gravitational potential energy (ΔPE = mgΔh). Friction turns some of the work into thermal energy. So the fan's work is split three ways: W = ΔKE + ΔPE + friction heat.