AP Mon 11/28 Papers back Go over chapter 8 day 2 AP Tues 11/29 Chapter 8 day 2 redos due. Do “Extra Problems” from other books AP Wed 11/30 “Extra Problems”

AP Mon 11/28• Papers back• Go over chapter 8 day 2AP Tues 11/29• Chapter 8 day 2 redos due.• Do “Extra Problems” from other booksAP Wed 11/30• “Extra Problems” from other books DUE• STUDY! (don’t forget calculus!)AP Thurs & Fri 12/1-2• Two-day TEST• HW: 4-part Experiment write-up!

AP Monday 12/5

1. Discuss Experiment write-ups• Lecture notes on error analysis

2. Test corrections• In red on test, 20 min or so

3. Rest of semester discussion (finals…)4. Lecture Notes and Impulse-Momentum

theorem• See next 2 slides

5. Asst: D (easy J = F · t = p problems)

Note – this unit looks VERY similar to the last unit:

• In that unit you had 2 basics equations:• (1) J = F t = p, or if the impulse was zero (as it is in a

closed & isolated system), then: • (2) p initial total = p final total

• See in later slides that, just like the impulse-momentum theorem above, we now have the work-energy theorem: (3) W = F d = E

• And see in later slides that, just like we had the conservation of momentum in a closed & isolated system above, we now have the conservation of energy when the net work done is zero: (4) E initial total = E final total

• So, you will have both of those types of math-problems to solve on the test, as well as many conceptual problems again.

• (But note things are slightly more complicated this time, as the F d, written & pronounced “F dot d” is a special type of multiplication, and there is more than one type of energy!)

J = F · t = p = pF – pI = mvF – mvI = m(vF – vI) = mv

a b c d e f g

AP Tues 12/61. Quick lecture notes

on “conservation of momentum”

• See next 4 slides

2. Do the experiment (since the equipment is already out!)

3. Asst E (easy p = 0 problems)

Conservation of

Momentum problems:

1. Write for EACH problem:

(m1v1I + m2v2 I + …. = m1v1F + m2v2 F + …)2. Plug in knowns/unknowns BEFORE collision for each object:3. Plug in knowns/unknowns AFTER collision for each object4. Solve for what you don’t know

Note the units must “MATCH”, like in the gas laws in Chemistry. So, the masses can be in grams, if they ALL are.

(m1v1I + m2v2 I + …. = m1v1F + m2v2 F + …)Some examples from non-AP:

Some more examples from non-AP:

1. Questions on HW (either D or E)• turn in D• Go over ch9#35 and ch 10#37

2. More W-E-P test corrections

3. Start doing / explanation of 2-D problems w/ vectors

4. Asst: G #1-4 (yeah, we’re skipping around a bit)

AP Wed 12/7

1. Any more Questions on HW E; turn in2. Go over 2-D w/vectors; “finish” #1 (see below)3. Small discussion about tomorrow’s asst (F)

• notes

4. More W-E-P test corrections5. Asst: finish G

1. #5-62. Do % error for 1-6 (difference / average x 100%)3. Do “energy lost as a % of the initial energy” for 1-64. Lecture notes 2-D problems w/ equations / ASST H –

pushed to next week!!5. Binders due tomorrow!

AP Thurs 12/8

(Mrs. Lewis at Negotiations)• Work period – asst F (14 problems that use

everything you know so far!)• Work together & help each other – ALL OF

YOU!• BINDERS DUE! (Put them in the boxes in the

back!)• (Experiment Portfolios up to W-E due next

Friday!)

AP Friday 12/9

AP Monday 12/12

1. Collect 2D problems (xc only counts if turned in today at beginning of class)

2. Go over Pendulum page on last test

3. Go over (hard) asst F (90% of next test)– p189#12– Ballistic pendulum, ch 10#39

4. Look at example for 2D with equations

5. Asst: H parts a & b

• Tuesday– 1 page last test– Concepts & finish H

• Wednesday– 1 page last test– Concepts & start I

• Thursday– last page of last test– Concepts & finish I

• Friday – Center of mass (asst B)