Science Buddies: "Ask an Expert"

Hi,

I am doing a project that I found on your website. It is called Helicopter Liftoff. I am trying to do the weight variation option. My question is, "How does increasing the weight of a hovering helicopter affect the rpms of its blades?". What small weights would be the best to use with this project?

Thanks in advance,
quickstorm22

Coins or paper clips are easy to find and use small weights.

Okay, thanks, audreyln!!