Mini Slinky!

This summer I tried to work on a lot of things, and this is one of them. I was looking for equipment that I could use to do a very straightforward paradigm lab for ufpm, because my students really didn’t sit well with the modified Atwood’s machine or the carts on an incline lab. It’s frustrated me that a relationship as intuitive as Newton’s 2nd Law can’t be uncovered in a more straightforward way.

So, I made a very sensitive (0 – 0.4N) force meter out of a mini slinky…

I attached one side to a thick dowel, 1″ maybe?

And attached a string to the other side, with a little hook, with some plastic used to cover fluorescent bulbs fit snugly around the outside.

I collected some great data with it, but we’ll have to wait a few months to see how my ninth graders do!

##equipment ##ufpm ##paradigmlab