Biomechanical factors and concepts

Question 1

Simple machines

Answer 1

enables us to apply a relatively small force (effort) to move a much greater resistance; enables us to move one point of an object a relatively small distance to result in a relatively large amount of movement of another point of the same object. Ex: lever, wheel and axle, pulley

Question 2

First class lever

Answer 2

FAR; axis is placed anywhere between the force and the resistance. ex: crowbar, seesaw, pliers

Question 3

Second class lever

Answer 3

ARF; R is somewhere between the axis and the F. ex: bottle opener, wheel barrow, nut cracker

Question 4

Third class lever

Answer 4

AFR; F is placed somewhere between the axis and the R. ex: catapult

Question 5

Torque

Answer 5

moment of force; Force (magnitude) x force arm