Friday, April 15, 2011
Fri-Day 2
Physics - we discussed the Compton Effect, further evidence that light/EMR (as well as ANY TYPE of energy) exists as separate particles of energy called photons (or quanta). When a stream of photons is fired at a stream of electrons, the particles collide and scatter. The photons lose energy, and the electrons gain/absorb energy from the photons during the collision. Energy and momentum is conserved so, measuring the wave components of the light, we measure that the frequency of the light decreased; using Planck's equation, we see that the energy of each photon diecreases.
We did problems of this type in the unit packet.
When we return, we will finish up this unit by looking at the "standard model" of all matter in the universe (everything is on the Reference Table, NOTHING needs to be memorized - the names are kind of crazy).
The unit test will be the following Monday/Tuesday - you must let me know if you have an AP exam either day, thank you.
AP Chem- we finished electrochem for Voltaic/spontaeous cells under standard Eo and non-standard (Nernst equation) conditions. We then did a typical electrolytic (nonspontaneous) cell calculation for electroplating. We briefly discussed nuclear decay and the 4 types of nuclear emanations, their causes, and balancing nuclear equations.
The Spring Break assignment was handed out and is posted.
PROJECT KARMA, your one and only opportunity to thoroughly prepare for the AP exam while improving your grade, was briefly described. I will send you and email detailing the requirements. Those who CORRECTLY did this assignment in the past got a 5 on the AP Chem exam (okay, 1 out of dozens got a 4).
This should/will not be a vacation from AP Chem; there will be plenty of time to relax after May 2nd.
I will send an email regarding a review session this upcoming week, and the last day of the break- that night, I will proctor another official released test (by that time, I will have reviewed all of the first test at the review sessions) so that your 5 will be a deeper 5 or your 3 or 4 will turn into a 4 or 5.
Excelsior!
We did problems of this type in the unit packet.
When we return, we will finish up this unit by looking at the "standard model" of all matter in the universe (everything is on the Reference Table, NOTHING needs to be memorized - the names are kind of crazy).
The unit test will be the following Monday/Tuesday - you must let me know if you have an AP exam either day, thank you.
AP Chem- we finished electrochem for Voltaic/spontaeous cells under standard Eo and non-standard (Nernst equation) conditions. We then did a typical electrolytic (nonspontaneous) cell calculation for electroplating. We briefly discussed nuclear decay and the 4 types of nuclear emanations, their causes, and balancing nuclear equations.
The Spring Break assignment was handed out and is posted.
PROJECT KARMA, your one and only opportunity to thoroughly prepare for the AP exam while improving your grade, was briefly described. I will send you and email detailing the requirements. Those who CORRECTLY did this assignment in the past got a 5 on the AP Chem exam (okay, 1 out of dozens got a 4).
This should/will not be a vacation from AP Chem; there will be plenty of time to relax after May 2nd.
I will send an email regarding a review session this upcoming week, and the last day of the break- that night, I will proctor another official released test (by that time, I will have reviewed all of the first test at the review sessions) so that your 5 will be a deeper 5 or your 3 or 4 will turn into a 4 or 5.
Excelsior!
# posted by C @ 11:01 AM 
