Using the "Lever an Obelisk" interactive activity, explain how the force applied by a lever is affected by its distance from the fulcrum.
Where should you position the fulcrum if your goal is to apply the least amount of force to raise the obelisk?
In what ways is using a screwdriver to remove the lid of a paint can similar to lifting an obelisk?
Have you used any levers today? Describe how they work.
