Block and Tackle Model, Watch how this simple device lifts large loads with little effort using multiple pulleys., Each

Details:

ull; This wooden machine has a sturdy wooden construction ideal for classroom use • This apparatus can model how the use of several pulleys increases one's mechanical advantage • Students can use this both qualitatively and quantitatively and its design lends itself easily to inquiry based activites • Includes an instruction manual to fascilitate student and teacher use of the apparatus • Made of particle board and wooden componets. 6 5/8" by 4 3/8" base and 12 1/2" tall. Block & Tackle Wooden Simple Machines using more than one pulley