Tuesday is SnoozeDay

Leave work, get dogs from daycare, feed said dogs on return home, flop on couch and take nap. That is my plan and I'm sticking to it...

Honors Physics, although sparsely populated due to the Mathematics Field Day trip, discussed elastic potential energy and reviewed the homework problems for the work-kinetic theorem, gravitational potential energy and elastic potential energy. Tomorrow we will draw these together and discuss conservation of mechanical energy, so be ready to think back to your lab activity as it will be used as an example of energy conservation. We should also have time to discuss power, the rate at which work is done or energy is converted. Exam looks like it will fall on Friday, not next week, so time budget accordingly.

Physical Science B and E took their exam on forces and momentum. Tomorrow, we jump back in the book to attack how forces and involved with fluid systems. We’ll look at liquids and gases, discussing such topics as buoyancy, pressure, the gas laws and density. Tomorrow, B Block will begin a discussion of buoyancy and Archimedes Principle. E Block will engage in a lab activity that will allow students to study the pressure changes with depth in a water column. We will make some modifications to the apparatus, owing to the fact that the caps I bought to fit the acrylic piping don’t fit (even though the nice man at the hardware store said they would), so make sure to pay close attention to the pre-lab overview to correct assemble your experiment.

Physics F worked on their conservation of energy in simple harmonic motion lab. Our discussion yesterday gave you some ammunition for the preliminary questions and for the analysis of the graphs of displacement, velocity, kinetic energy, elastic potential energy and total energy over time. Reflect on this material when you pull together your conclusion for the lab synopsis.

Physics G discussed conservation of energy, with special emphasis on conservation of mechanical energy. With the presence of friction, the conversion between kinetic and potential energy is not absolute. Some energy is always tuned to the nonmechanical form of heat. However, in low-friction situations, the loss of mechanical energy is sufficiently low that conservation of mechanical energy can be used to make predictive calculations. Tomorrow, we discuss power and begin reviewing for the exam on Friday.

Homework

Honors Physics: Practice 5E
Physical Science B: Read pgs. 80-86 and answer #19 on page 95
Physical Science E: Read lab sheet and pgs. 80-86. Complete #21 and #34 on page 95.
Physics F: Complete lab write up
Physics G: Read 5.4 and complete the 5.4 Section Review