Curated OER
TE Lesson: Factors Affecting Friction
Students investigate the effect of weight on normal friction or the friction due to surface roughness. They tell about the effects of contact area that occurs as a result of molecular attraction by looking at data on line graphs.
Curated OER
You’re Tugging at Me!
Students study the sliding and rolling friction. In this forces lesson students divide into groups and use a cart to examine the amount of force that is used to move objects.