Chris

I think the dollar coin is more dangerous than the penny. This is because the diameter and mass of the dollar coin is greater than the penny and therefore make it fall faster and hit harder than the penny will.

Sounds good. Proceed.

1. DROPPING TO SEE WHICH FALLS FASTER Yes, I will clip both the Dollar coin and the penny onto the chip clip. That way when I open the chip clip both will fall from same point at same time to make as little human error as possible. I will film the fall of the coins and the contact with the floor to see which coin fell faster and hit the floor first. I will be filming the entire drop to see which fell at a faster rate as well as which one made contact with the floor first.
 * Will you be using the chip clip to drop them at the same time?
 * How will you know which one hit first?
 * If you are filming it, will you film the entire drop or just the spot where they land?

After Filming the Coin Drop i have found that the answer to which falls faster is inconclusive and cannot be answered without additional experimentation.

I agree with Sarah and Jaci that the dollar coin does more damage and theoretically it should fall faster than the penny. My information and experimentation had odd results but Sarah and Jaci had information pertaining to my part that was very interesting.