This is the Law of Conservation of Energy. If a hoist gives you a mechanical advantage of 4 (you use 1/4th the force), you must pull the rope 4 times the distance you want to lift the object.
I got the Respuestas Tecno 12 18 Mecánica 1: Poleas y Polipastos portable as a supplement for my 8th-grade technology class, and it’s been surprisingly useful. This is the Law of Conservation of Energy
It breaks complex mechanical physics into "mini-units" that are manageable for secondary students. Cons: This is the Law of Conservation of Energy