how to make a simple hydraulics brake system model?!?

[Bina28]

i need to make a simple hydraulics break system model, im in the 11 grade and i need to do this for a physics project. please let me know where i can obtain these materials needed to create the model, and please keep the materials needed simple as plastic tubes etc... thanks in advance
that is not related to physics...

 

[DnR]

You make a runway and have it walk back and forth in a seductive manner. Take lots of pictures! Now its a model!