Simple Machines Explore Gears and Levers

The unique stop system of this device allows students to load

masses on the lever arm without it falling. Gears with 12, 24, and 36 teeth, then allow

students to investigate the advantage behind different gear ratios. Experimenting with

different setups, students discover the mechanical advantage of gears and three types of

levers. You can also challenge students to devise a way to lift a mass using the least amount

of force. Includes four gears, rwo levers, mounting hardware, and teacher and student

guides. Requires the Fun Stand, hooked masses, and spring scales- all available separately