pulley system

Mechanical advantage setup

A pulley system is an arrangement of one or more wheels with grooved rims through which rope or cable passes, used to lift or move heavy loads.

The mechanical advantage increases with additional pulleys—a single pulley changes direction of force, while compound systems multiply it: The stage crew raised the scenery with a pulley system.

Block and tackle is a common type.

Opposites
mechanical advantage mechanism type

pulley systembare hands

Ungloved, unequipped extremities

brute force · lever · inclined plane · wedge · screw

force multiplication method

pulley systemmanual labor

Work done bodily

brute strength

Family

system, pulley

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G