This laboratory activity uses a multi-surface board (or several different types of surfaces) to measure the forces required to start an object moving and keep an object moving. The procedure guides them through calculations of the coefficients of static and kinetic friction, then has them repeat the process for doubled surface area. An additional procedure addresses the coefficient of static friction for an inclined surface. Review questions are included.
This lab has been used at several levels and is easily adaptable for emphasizing key information. The instructions are easily followed by students and allow them to work as independent groups and discuss their findings.