12/20/12

Almost There!

One more day until break and I do believe everyone is very happy for it...

Physics A and B worked on a quick investigation of pressure with depth. Folks used a gas pressure sensor to measure pressure at different depths in a fluid column and found that pressure increased with descent and the relationship was strikingly linear. We then looked at a variation of Bernoulli's equation for still fluids (P = P0 + ρgh) and how that matched with the equation of the line generated in lab. When we get back from break, this will be where we pick up with our work on forces in fluids.

Intro Physics reviewed their work with gravitational potential energy before moving into the area of kinetic energy. Kinetic energy is associated with objects in motion and the more motion, the more kinetic energy. We looked at the formula and the different importance of mass and velocity for changing kinetic energy. We also related work to changes in an object's kinetic energy, just as we did for the potential energies. Time was taken to practice solving problems for kinetic energy and the work-kinetic energy theorem. We'll review this tomorrow and tie up loose ends before we return from break and dive into conservation of energy.

Honors Physics enjoyed their Chapter 9 - Heat exam. Next, we're moving on to Thermodynamics!