Determining a Spring Constant

today, we had to do another gizmo, this time about springs. we had to put various weights on a spring and see how it effected the spring. After that, we had to take the graphs and put them into this blog. in the first one, we used a looser spring, which stretched more while in the 2nd, we used spring 3, a tighter one that didn't stretch as much. my prediction that the trial with both C and D would continue to line up with the rest of the trials was correct on the spring number 3 trial.

Physics Links

Heres some physics links...

http://www.learner.org/interactives/parkphysics/
http://www.sandlotscience.com/
http://www.physicscentral.com/
http://www.miamisci.org/af/sln/index.html

Shoot the Monkey Gizmo

I aimed my cannon at 30 degrees with an initial velocity of 20m/s and the monkey successfully caught the banana.

The best technique is to aim the cannon at the monkey and guess and check for the initial velocity.

If the cannon is pointed directly at the monkey at the start of the simulation, then the gravitational pull on both the monkey and the banana will compensate and the monkey will cathch the banana every time.