DJ Lever Project

Lever ProjectVideo

First-Class Lever: The fulcrum is between the effort and the load. Examples include scissors, pliers, and crowbars.

Second-Class Lever: The load is between the effort and the fulcrum. Examples include wheelbarrows, door handles, and nutcrackers.

Third-Class Lever: The effort is between the load and the fulcrum. Examples include fishing rods, shovels, and human arms (when lifting weights).

1. First-Class Lever: The elbow joint is an example of a first-class lever. When you bend your arm, the fulcrum is the elbow joint, the effort is the bicep muscle, and the load is the forearm.

Second-Class Lever: The foot is an example of a second-class lever. When you stand on your toes, the fulcrum is the ball of the foot, the effort is the calf muscle, and the load is the body..

Third-Class Lever: The forearm is an example of a third-class lever. When you hold a weight in your hand, the fulcrum is the wrist joint, the effort is the forearm muscles, and the load is the weight..

Fulcrum: Base's hands or arms (where the flyer is lifted from) · Shoulder or hip (for certain lifts, like shoulder stands or hip thrusts) · Feet (for pyramid bases or other formations)

Effort: Base's legs and core muscles (generate force to lift flyer) · Base's arms and shoulders (control and stabilize flyer) · Timing and coordination (between base and flyer)

Load: Flyer's body weight (being lifted or supported) · Weight distribution (how the flyer's weight is balanced on the base) Examples of cheerleading stunts using fulcrum, effort, and load: