38 pgs, 24 gifs, 1 pg Q/ansIf physics includes simple machines, this introduction would be appropriate.Emphasis is on lst class levers and vector diagrams for objects on inclined planes, calculation of MA and forces involved. . Second and third class levers are demonstrated along with wedge, pulley, wheel and axle, screws and compound machines. Applied force, resistance force, effort arm, resistance arm, mechanical advantage and efficiency are discussed. 3pgs of q