Thursday, October 14, 2010
Thurs-Day 1
Physics - we separated the projectile motion problems into two types: 1. objects launched horizontally which the fall "freely"/accelerate towards Earth due to gravity. 2. objects launched upwards at an angle to the horizontal, which then travel in a parabolic path as they are accelerated towards Earth due to gravity.
In the 2nd problem type, the velocity vector has to be resolved into its vertical and horizontal components.
We reviewed the hw questions (thanks for catching the two errors! I didn't write the equation/look at the picture to see that my answer only considered HALF of the total distance and HALF of the total time!)
We practiced using the projectile motion organizer, and showed the data that can be consistently
"pre- entered".
We then discussed the tennis ball vertical motion analysis lab, which we will continue on Monday.
AP Chem - NOTE: on the last practice test file, question 5 is a mixture problem in which BOTH parts of the mixture react with another reactant; in class, I stated that these questions are now considered too complex for the AP exam. We will do these questions after the AP exam, so do NOT worry about them for tomorrow.
Tomorrow's exam will have:
1. the four gas-forming reactions (as well as the two types of previously tested double replacement reactions)
2. redox balancing via the half-reaction method including identification of oxidizing agent and reducing agent
3. stoichiometry (from mass) with limiting reactant, and percent yield
4. molarity calculations
5. making solutions, and dilution calculations
6. solution stoichiometry/titration (acid/base or redox) to determine the percent composition of a given element or compound in a mixture/ore or to determine the empirical formula of an unknown acid
7. solution stoichiometry with limiting reactant, and FINAL concentrations of all non-spectator ions in solution.
Of course, you MUST by now be EXPERTS on formula writing and naming!
You must be EXPERTS on proper use of units and significant figures (in your FINAL ANSWERS, only).
In the 2nd problem type, the velocity vector has to be resolved into its vertical and horizontal components.
We reviewed the hw questions (thanks for catching the two errors! I didn't write the equation/look at the picture to see that my answer only considered HALF of the total distance and HALF of the total time!)
We practiced using the projectile motion organizer, and showed the data that can be consistently
"pre- entered".
We then discussed the tennis ball vertical motion analysis lab, which we will continue on Monday.
AP Chem - NOTE: on the last practice test file, question 5 is a mixture problem in which BOTH parts of the mixture react with another reactant; in class, I stated that these questions are now considered too complex for the AP exam. We will do these questions after the AP exam, so do NOT worry about them for tomorrow.
Tomorrow's exam will have:
1. the four gas-forming reactions (as well as the two types of previously tested double replacement reactions)
2. redox balancing via the half-reaction method including identification of oxidizing agent and reducing agent
3. stoichiometry (from mass) with limiting reactant, and percent yield
4. molarity calculations
5. making solutions, and dilution calculations
6. solution stoichiometry/titration (acid/base or redox) to determine the percent composition of a given element or compound in a mixture/ore or to determine the empirical formula of an unknown acid
7. solution stoichiometry with limiting reactant, and FINAL concentrations of all non-spectator ions in solution.
Of course, you MUST by now be EXPERTS on formula writing and naming!
You must be EXPERTS on proper use of units and significant figures (in your FINAL ANSWERS, only).
# posted by C @ 9:38 AM 
