Mondays are So Bad

That I couldn't even post yesterday due to the trauma...

Physics A and B have been working on gravity and Newton's Law of Universal Gravitation. We looked at gravity as a centripetal force, the nature of gravitational fields and the deeper meaning of "g," the acceleration due to gravity and measure of gravitational field strength, and how we can use that identify and NLUG to calculate the weight of an object on any planet or moon. The practice you're working tonight will help you manipulate those relationships and tomorrow, we'll change gears a little and focus on torque - the ability for a force to product rotation.

Honors Physics reviewed their work from yesterday on fluid pressure (Pascal's principle, hydraulics and pressure with depth) and took a look at fluids in motion during today's class. The ideal fluid model was discussed, as was conservation of mass in fluid systems, as described by the continuity equation. We ended the period by looking at Bernoulli's principle, which related fluid speed to pressure and discussed some examples of how this played out in real life.

This was also Introductory Physics area of work. We reviewed our work with buoyant forces, then turned our attention to Bernoulli's principle. As with Honors Physics, we looked at some demonstrations showing that faster-moving fluids exhibited less pressure than slower-moving fluids and how the forces involved generated changes in the motion of the fluid. We also discussed common day examples of Bernoulli's principle such as smoke rising up a chimney or function of perfume atomizers. We also mentioned the relationship to lift in flight, but emphasized that it was not the sole reasons planes stayed in the air. If you check your Edline page under the news section, you'll find a link to an episode of the BBC radio program Cabin Pressure that touches on this issue. The program revolves around the crew of a charter plane and their shenanigans. I'll leave the link up for a while if you'd like to give it a listen. Great if you like British Humor...