Friction Block and Surface Set
Product Number: SB40933
In Stock (Ships within 1-2 business days)
Introduce the concept that friction depends on the nature and smoothness of materials. Kit consists of three wooden blocks measuring approximately 3-15/16 in. L x 2-3/4 in. W with hooks. The first block has a highly polished side, the second has a sandpaper side, and the third has an aluminum side. Complete with polished wooden base measuring 14 in. L x 2-3/4 in. W.