A lever is a machine consisting of a beam or rigid rod pivoted at a fixed hinge, or
fulcrum. ... This sprang from the stem of the verb lever, meaning "to raise". ....
middle for the 2nd cl...
According to Ohio University, there are three main classes of levers. These are
distinguished by the relative locations of the load, effort and fulcrum along the ...
diagram of the three types of levers, showing fulcrum, direction of effort, and
direction of force of the load (or resistance). top: a crowbar. center: a
Levers: Definition, Classes & Examples .... A Class 1 lever has the fulcrum
between the input force and load, just like the see saw ... Second-Class Levers.
Definitions. Lever: Rigid bar that turns ... Second Class Lever. resistance is
between axis ... example in body. most levers in body are third class; elbow
www.ask.com/youtube?q=What Is the Definition of a Second Class Lever&v=lAdFBmO2lWE
Feb 26, 2008 ... An educational video on second class levers I made for my mom's 6th grade
Levers are typically labeled as first class, second class, or third class. All three
types are found in the body, but most levers in the human body are third class.
While less common in the body than second and third class levers, the first class
... Less muscle in the extremities means less muscle mass to move, resulting in ...
Jun 30, 2011 ... An example of this type of 2nd class lever is triceps surae lifting the body ... Lever
System Assessment – Define lever system, identify lever arms ...
The difference between first, second and third class levers lies in the relative
positioning of three items. Find out about the difference between first, second and