Tuesday, December 14, 2010
Tues-Day 2
Physics - did work and energy multiple choice problems.
We then considered the (elastic) potential energy that is stored in a spring by virtue of its "stretch" or "compression" distance, x, from its equilibrium/un-stretched position.
The greater a spring is compressed or stretched, the greater the stored potential energy/ability to do work when the spring is released. The PE of the spring is proportional to the SQUARE of its stretched or compressed distance.
Our unit 6 test is on Thursday and Friday this week.
AP Chem - to give you more time and practice with this most important unit, I will give the unit exam sometime next week. I will post a list of question topics tomorrow or Thursday.
we looked at all important aspects of our electronic and molecular geometry, hybridization, molecular polarity chart today for each of AX3, AX2E, AX4, AX3E, AX2E2, AX5, and AX4E molecules (or ions) today.
We also explained resonance stabilization by using valence bond theory. We reviewed bond order, and its relation to bond strength and bond length.
We then considered the (elastic) potential energy that is stored in a spring by virtue of its "stretch" or "compression" distance, x, from its equilibrium/un-stretched position.
The greater a spring is compressed or stretched, the greater the stored potential energy/ability to do work when the spring is released. The PE of the spring is proportional to the SQUARE of its stretched or compressed distance.
Our unit 6 test is on Thursday and Friday this week.
AP Chem - to give you more time and practice with this most important unit, I will give the unit exam sometime next week. I will post a list of question topics tomorrow or Thursday.
we looked at all important aspects of our electronic and molecular geometry, hybridization, molecular polarity chart today for each of AX3, AX2E, AX4, AX3E, AX2E2, AX5, and AX4E molecules (or ions) today.
We also explained resonance stabilization by using valence bond theory. We reviewed bond order, and its relation to bond strength and bond length.
# posted by C @ 9:16 PM 
