Stop Freewheeling Using Friction! - Maker Challenge

Materials List: Stop Freewheeling Using Friction!

assortment of materials to experiment with reducing and increasing friction, such as cardboard, paper, rubber, and sandpaper
fabrication tools and adhesives to work with the above materials such as scissors, glue, and masking tap
textbooks (used to create an incline for the ramp)
toy model of a wheelchair
lab notebooks and pens
poster paper and markers