Question

click to review the online content. then answer the question(s) below, using complete sentences. scroll down to view online content: site 1 fitness log describe each class of lever and explain the characteristics of each.

Explanation:

There are three classes of levers. First - class levers have the fulcrum between the effort and the load. This allows for a change in direction of the force and can provide mechanical advantage depending on the distances of the effort and load from the fulcrum. Second - class levers have the load between the fulcrum and the effort. They always provide a mechanical advantage as the effort arm is always longer than the load arm. Third - class levers have the effort between the fulcrum and the load. They do not provide a mechanical advantage in terms of force but increase the speed and distance of the load's movement.

Answer:

First - class lever: Fulcrum between effort and load, can change force direction and may have mechanical advantage. Second - class lever: Load between fulcrum and effort, always has mechanical advantage. Third - class lever: Effort between fulcrum and load, increases speed and distance of load movement.