angular velocity
w = 2π / t or 2π x F
speed of an object moving in a circle
v = w x r
centripetal acceleration
a = v^2 / r = w^2 / r
centripetal force
f = (m x w^2) / r = (m x v^2)/ r
experiement to investigate centripetal motion
tie a bung with mass to a rope put this rope through a glass tube with paper clip on other end tie a weight to the bottom. the weight of the weight provides a centripetal force for the mass to spin . change mass and investigate time it takes to go around the circle.