This interactive activity from the NOVA website challenges users to lift one end of an obelisk to a height of three feet using only a lever, a fulcrum, weights, and some supporting stones. Levers are ...

Levers are literally all around us. You body uses them to move, pick up a pen to sign your name and you’ll use mechanical advantage to make that ballpoint roll, and that can of soda doesn’t open ...

levers use mechanical advantage to make lifting or applying pressure easier the three main parts of a lever are the effort (input force), fulcrum (pivot point), and load (output force) there are three ...

Levers can help to lift heavy loads, as well as make things go up and down. Levers can be found in many everyday items. For example, a door handle, a pair of scissors, a can opener and even a ...

Put the fulcrum near a table or lectern that a volunteer can grab. Mount the beam on the fulcrum with the short end near the table or lectern. The ratio of lengths for the short arm to the long arm ...