The non-obvious lever in my ornithopter turned out to be a combination of two different classes of levers, a class 2 and 3 lever, both of which exist in each wing. Class 2 Lever ...

Second class levers (Class 2) place the fulcrum at one end of the lever and the effort at the other end, with the load in the centre. The closer together the fulcrum and load are, the easier it is ...

The Lever Loads Activity has students follow directions to devise a lever and then think about some of the aspects related to levers. This adaptation adds a level of complexity by having the ...

A lever is just a beam or a stick or a rod. Or, in this case, a few sheets of newspaper turned into a rod. What class of lever you have depends on where you put the fulcrum. This is the other bit ...

In the realm of physics and mechanics, levers are classified in three groups: first-class (a seesaw), second-class (a wheelbarrow), and third-class (a hockey stick or golf club).