Recent content by Dodirama

sounds like you guys are actually on the same page.

Great- thanks everyone. The kids in question haven't actually even done much differential calculus, so I guess they can be forgiven for not knowing that EPE is the area under a Fx graph... THOUGH I think we have talked about work being the area under a Fs graph... so, ok, yeah, they could...

hmmm... good point. So I wonder what that would mean about the EPE of the spring?

we're using the balance to apply a force

I wish I could draw a picture. Do you know what a spring balance is? it's a plastic cylinder with a spring in it with a hook on the end. you put stuff on the hook and pull. A scale written up the side gives you readings in either grams (this one was in grams) or Newtons. Their cannon was...

No, actually, compress. I was under the impression that hooke's kaw applied in this case too. Perhaps it doesn't? so, they were pulling... basically a piston? With a spring balance, that caused the spring to compress.

Hi all, I'm a physics teacher at an australian high school, and some kids that I teach have give me some interesting data reguarding spring constants. They made a contraption to project marbles as part of an analysis of projectile motion, and part of the contraption was a spring, used to...