Ideas for an experiemnt/practical?

[meee]

need to make up a prac for a yr12 assessment @ school...
any1 please help with ideas for experiments?
we been workin with motion, forces, collisions, momentum, circular motion ETC

any ideas greatly appreciated

 

[Hootenanny]

Done SHM yet?

 

[meee]

wats dat?......

 

[Hootenanny]

I guess not then... Simple Harmonic Motion, pendulums, oscillating mass-spring systems and such like.