chapter 8 - chapter 8 biomechanics Study online at...

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1. an apparatus/system that uses the combined action of several parts in order to apply mechanical force machine 2. 3 types of machines in the human body 1. lever system 2. wheel and axle systems 3. pulley systems 3. machine functions (4) 1. transmit a force 2. increase magnitude of force 3. increase linear distance and velocity of a force 4. change direction of force 4. consists of a rigid or semi-rigid object (lever) that is capable of rotation about an axis (fulcrum) lever system 5. purpose of the lever system transit energy from one place to another 6. bc ___ is an axis of rotation, applied force must be off-axis to produce torque necessary to rotate the lever fulcrum 7. two types of torque in a lever system motive torque and resistive torque 8. an eccentrically applied force that attempts to rotate the lever in the opposite direction resistive torque 9. eccentrically applied force that attempts to rotate the lever in 1 direction about the fulcrum motive torque 10.
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  • Fall '09
  • Force, lever, Simple machine, mechanical advantage, Class Lever

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