Force and moment equilibrium
Turning a door
In this simulation, the moment required to rotate the door is fixed. Observe how the force to be applied varies when moving the handlebar or changing the angle of application of the force. How to minimize the force required?
In this simulation, different masses can be placed in various positions on the rocker arm. See how by changing the masses and the distances to the center of each side, different balanced configurations can be achieved.
Tension and position
Change the position of the mass and observe how the tension forces on the two ropes change. In which position do the tensions equalize?
Play with objects on a seesaw to learn about balance. Test what you've learned with the balance challenge game.