Tuesday, October 12, 2010
Tues-Day 1
Physics- finished up the graphs and questions on our free-fall motion analysis lab.
We then did question 3 on the Projectile Motion 1 ditto; the answer to question 4 is posted in the notes on Blackboard so do that problem, and check your answer.
We then started analyzing projectile motion of objects that are launched/thrown at a particular angle from the horizontal. We saw that the parabolic path is symmetrical so not only do we analyze the vertical and horizontal components of a, d, and v, but also we separately analyze the "upwards" first half of the trip, and then the "downwards" second half of the trip.
Tomorrow, you will see that the numbers are SLIGHTLY easier for the downward part of the trip because all quantities are positive.
PROBLEM SOLVING TIP: if you are unsure what to do in a calculation/problem, take scrap paper and do the SAME problem with VERY SIMPLE WHOLE NUMBERS; then apply the same PROCESS to the more complex numbers in the question.
The same goes for "unknown" formulas: on scrap paper, see how a KNOWN compound's formula would be manipulated to determine its formula, and then do the same PROCESS to the "unknown" compound in the question.
We then did question 3 on the Projectile Motion 1 ditto; the answer to question 4 is posted in the notes on Blackboard so do that problem, and check your answer.
We then started analyzing projectile motion of objects that are launched/thrown at a particular angle from the horizontal. We saw that the parabolic path is symmetrical so not only do we analyze the vertical and horizontal components of a, d, and v, but also we separately analyze the "upwards" first half of the trip, and then the "downwards" second half of the trip.
Tomorrow, you will see that the numbers are SLIGHTLY easier for the downward part of the trip because all quantities are positive.
AP Chem - did a couple of solution stoichiometry problems for reinforcement before Friday's test.
We will go on to gas stoichiometry/ gas laws tomorrow.PROBLEM SOLVING TIP: if you are unsure what to do in a calculation/problem, take scrap paper and do the SAME problem with VERY SIMPLE WHOLE NUMBERS; then apply the same PROCESS to the more complex numbers in the question.
The same goes for "unknown" formulas: on scrap paper, see how a KNOWN compound's formula would be manipulated to determine its formula, and then do the same PROCESS to the "unknown" compound in the question.
# posted by C @ 9:35 AM 
