Mario drops a penny into a funnel-shaped wishing well. The penny rolls around the outer edge in a circular pattern. It moves closer to the bottom of the funnel each time it completely rolls around the edge.

Mario drops another penny into the same wishing well. Which type of motion should Mario predict the penny will have?
(1 point)
• circling
• front to back
• straight line
• zigzagging

The correct answer is circling.