1Q10.40 Racing Discs

Two discs of identical mass, one weighted in the center and the other weighted at the rim, are rolled down an incline.

Two large, thick discs have eight holes each punched through their surfaces. Four holes form a square around the center of each disc. Four more holes are evenly spaced around the rim of each disc. Each disc has four small metal weights that can be fit into the holes to create different mass distributions.

Location: Rolling Discs B1-3, Board right of the turn table, Blocks H1-5