Discuss how and why the Bohr's model of the atom can be descried accurately for the hydrogen atom,, for energy and location. Introduce the Heisenberg principle and why chemists accept the notion of knowing only the location when energy is the key to understanding the atom. Introduce quantum numbers as a description of the atom
Discuss satellite motion horizontally and vertically. Define the period or rotation. Demonstrate how the period lengthens as the velocity decreases due to distance from the foci. Discuss elliptical orbits, perigee and apogee, along with kinetic and potential energy conservation.
As Joshua is still developing interpretative thesis writing skills, today's lesson addressed how to formulate and write an AP thesis statement for the essay portion of the exam. Sharing a document, I first provided an example of an interpretative thesis that I drafted regarding a Shakespeare sonnet we had studied. I explained what made the thesis an interpretation rather than a summary and we compared it with the thesis Joshua had drafted last week. Joshua then worked on rewriting his thesis based on the example. We then repeated the exercise with a Robert Frost poem analyzing the function of an extended metaphor vs the function of a simple metaphor. For homework, Joshua will continue practicing on a Frost poem and a Blake poem.
Discuss Bohr's equation for Energy of an electron as E=-Rhc/n^2. Solve for the energy in a hydrogen electron. Discuss Bohr's observations, levels of energy, and the excited atom. Introduce the wave-particle duality theory and the photoelectric effect. Introduce wavelength=h/mv. Discuss why only with subatomic particles, protons, neutrons, and electrons, will a wavelength be determined
Discuss how objects "fall" to the Earth when released from a high point with varying forces. Elicit the pathways taken from a straight line to a curved path. Determine the distance traveled in a given period of time for each pathway. From that information elicit the definition of a satellite. Discuss the rate at which an object falls and the rate at which the Earth curves. Determine distance for 1 second. Determine curvature of the Earth as a 5m drop every 8000 meters. Determine the velocity needed to orbit the planet.