120 likes | 190 Views
Classes of Levers. 1. First Class Levers. -the fulcrum is between the force and the load. -examples scissors, pliers, seesaw. -favors speed and range-of-motion. Classes of Levers. 1. First Class Levers. -the fulcrum is between the force and the load. -examples scissors, pliers, seesaw.
E N D
Classes of Levers 1. First Class Levers -the fulcrum is between the force and the load -examples scissors, pliers, seesaw -favors speed and range-of-motion
Classes of Levers 1. First Class Levers -the fulcrum is between the force and the load -examples scissors, pliers, seesaw -favors speed and range-of-motion -example Triceps brachii extends the forearm at the humeroulnar joint
Classes of Levers 1. First Class Levers -the fulcrum is between the force and the load -examples scissors, pliers, seesaw -favors speed and range-of-motion -example Triceps brachii extends the forearm at the humeroulnar joint humerus radius ulna
Classes of Levers 1. First Class Levers -the fulcrum is between the force and the load -examples scissors, pliers, seesaw -favors speed and range-of-motion -example Triceps brachii extends the forearm at the humeroulnar joint humerus radius ulna Triceps brachii
Classes of Levers 1. First Class Levers -the fulcrum is between the force and the load -examples scissors, pliers, seesaw -favors speed and range-of-motion -or favors force
Classes of Levers 1. First Class Levers -the fulcrum is between the force and the load -examples scissors, pliers, seesaw -favors speed and range-of-motion -or favors force
Classes of Levers 2. Second Class Levers -the load is between the force and the fulcrum -example wheelbarrow -favors force -example Brachioradialis flexes the forearm at the humeroulnar joint
Classes of Levers radius ulna 2. Second Class Levers -the load is between the force and the fulcrum -example wheelbarrow -favors force -example Brachioradialis flexes the forearm at the humeroulnar joint humerus
Classes of Levers radius ulna 2. Second Class Levers -the load is between the force and the fulcrum -example wheelbarrow -favors force -example Brachioradialis flexes the forearm at the humeroulnar joint humerus Brachioradialis
Classes of Levers 3. Third Class Levers -the force is between the load and the fulcrum -example tweezers, tennis racket, golf club -favors speed and range-of-motion -example Biceps brachii flexes the forearm at the humeroulnar joint
Classes of Levers radius ulna 3. Third Class Levers -the force is between the load and the fulcrum -example tweezers, tennis racket, golf club -favors speed and range-of-motion -example Biceps brachii flexes the forearm at the humeroulnar joint humerus
Classes of Levers radius ulna 3. Third Class Levers -the force is between the load and the fulcrum -example tweezers, tennis racket, golf club -favors speed and range-of-motion -example Biceps brachii flexes the forearm at the humeroulnar joint Biceps brachii humerus