United Scientific Supply Friction Apparatus

United Scientific Supply This set includes a friction block and a friction board, both made of high quality, smoothly finished pine wood The friction block has a hook for a spring scale and three compartments for additional weights It can be placed face-up or sideways Students can vary the weight or area of contact to test their impact on the frictional force The set comes with three 50g weights and a 100g spring scale The board is 20 x 2 and theblock is 4 x 15 x 1 Includes an activity guide - USS