United Scientific Supplies Inc. Friction Apparatus

Set Includes A Friction Block And A Friction Board. The Friction Block Has A Hook For A Spring Scale And Three Compartments For Additional Weights. He Set Comes With Three 50G Weights And A 100G Spring Scale. Includes An Activity Guide.
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 the
block is 4" x 1.5" x 1". Includes an activity guide.