CH. 4 - complete (chapter quiz has been marked and returned)
Focus this week: 5.1 Simple Machines and Mechanisms
Main concepts:
*6 simple machines - lever, pulley, wheel & axle, inclined plane, screw, and wedge
*3 classes of lever - classification depends on where the Fin, Fout, and fulcrum are
*calculating IMA of lever, wheel and axle, and inclined plane - underlying formula is still
IMA = d in / d out
*IMA of a pulley - count the # of supporting ropes
Next week: lab (Determining the IMA of simple machines) and quiz on 5.1
