Monday, December 13, 2010
Mon-Day 1
Physics - did problems that involved conversions of potential energy to kinetic energy, and vice-versa, given that total energy is a constant, always!
We looked at "estimation problems", in which we use rough approximations of physical quantities to get a ballpark answer, and choose the closest matching answer. Estimation problems will appear on each test for the rest of the year.
It is important to practice and use scientific notation, so that these problems are more easily solved.
We looked at energy conversions in pendulum problems and noted that the speed of the bob does NOT depend on the mass of the bob! We saw that, as potential energy (mgh) of the bob was converted to kinetic energy (mv^2 / 2) , the masses cancel on each side of the equation.
AP Chem- showed orbital hybridizations for AX2 and AX3 type molecules.
We also showed, and discussed pi bonding in molecules.
We looked at "estimation problems", in which we use rough approximations of physical quantities to get a ballpark answer, and choose the closest matching answer. Estimation problems will appear on each test for the rest of the year.
It is important to practice and use scientific notation, so that these problems are more easily solved.
We looked at energy conversions in pendulum problems and noted that the speed of the bob does NOT depend on the mass of the bob! We saw that, as potential energy (mgh) of the bob was converted to kinetic energy (mv^2 / 2) , the masses cancel on each side of the equation.
AP Chem- showed orbital hybridizations for AX2 and AX3 type molecules.
We also showed, and discussed pi bonding in molecules.
# posted by C @ 9:08 PM 
