Friday, July 15, 2011
Pascal and Liquid Pressure
The rest of the chapter we discussed. The illustrations in the text are great, but I wanted to find or rig a container similar to what is pictured in the book with the connected water columns and the piston. They got a basic understanding of the concept but I extended it to remind them that what they gain in strength they have to make up in distance, just like other simple machines. A simulation or demonstration would have gone a long way here.
They really liked the tie in to hydraulics, amazed that this simple concept is used to create the brakes of a car.
They so enjoyed fluid mechanics that the following week one of the boys brought in a hydraulics kit that they spent the class exploring. Something about boys and water...