Interactive lever simulation. These two forces are applied to the bar at a certain distance from the fulcrum. On the next page, you can choose from among five different simulations, all of them illustrating different aspects of the lever arm. Students will dive into the world of balancing using levers and fulcrums. The goal of this math/physics game is to achieve a perfect balance by putting all the given objects onto the lever. It's a highly visual way to investigate how changing the position of a mass on one or… Explore balance and forces with interactive simulations and games. Test what you've learned by trying the Balance Challenge game. With a lever, you can work with it having little force. You can use as many weights as you want and spread them out however you want, but you need to BALANCE the lever. Explore the physics of levers with ExploreLearning Gizmos. Two forces act on the lever: the resisting force of the object (its weight), the driving force applied to lift the object.