AP Tues 9/20

1. TEST2. HW:Finish Gravity write-up

AP Wed 9/211. Lecture notes: Projectiles (2D

kinematics)2. Asst: Asst B on worksheet (start with the

# you drew from the box, and then go from there.)

AP Thurs 9/22

1. Students will present:– going in order (chapter 4:  11, 13, 15, 17, 19, 23, 30, 32b&c, 33,

34, 35, 40, 42, 43, 46a, and 48) for any problem anyone has questions on .

– QUICKLY present (a) what the lists are for that problem - and some of them have 4 lists of variables!! - and a brief explanation of why the lists are that way if necessary.  THEN, (b) the next steps to solve the problem BRIEFLY.  (I really don't want this to take more than a half-hour of class time TOTAL tomorrow.)

2.  HW: Get all of asst B finished. I’ll be here after school if you need more help and/or you can email me tonight if you get stuck.

AP Friday 9/23

1. Collect lab books & binders

2. Go over asst “B” projectiles.

3. Asst: Asst C

You will have the next 3 days in class to work:

Monday 9/26:

1. Show me Asst C #7 on your graphing calc.

2. “More Projectiles” ditto

Tuesday 9/27:

1. Finish “More Projectiles” ditto

2. Start “Ditto G”

Wednesday 9/28:

1. Finish “Ditto G”

(next test scheduled for Tuesday Oct. 4th)

Thursday 9/29

1. Interactive Physics

2. Look at graphing tests if time (tomorrow if not)

3. HW: HS worksheet

Friday 9/30

1. Binders due – AGAIN!1. Do you have all the agendas?2. All old assts in there?3. (check nb rubric)

2. Do 2 problems from chapter 5, together on HW sheet

3. Look at graphing tests4. Shoot the monkey5. Finish IP assts 1-36. Asst: B again, starting with #30

Graph from day 2 asst:

Trajectories of a Projectile

0

5

0 10Range

He

igh

t

5 degrees

15 degrees

25 degrees

35 degrees

45 degrees

55 degrees

65 degrees

75 degrees

85 degrees

Similar graph to day 4 asst:

dx vectors and dy vectors:

vx vectors and vy vectors:

ax vectors and ay vectors:

It will fall a greater distance during the 2nd second, because it is speeding up.

The average velocity would be bigger (negative), and it would take less time to fall

Confetti is subject to air resistance, so no ...

C.

trajectory constantconstant

zeroacceleration

force of gravity equal to

frames of referencehorizontal

horizontal verticaltrajectory horizontal vertical

zero -9.8 m/s2 zeroincreases stays the same

positivezero negative

the samereversed horizontal

horizontalvertical

equal equal to

Didn’t really cover

Part D:

Problem 1.1

same less

more

more

more

Imagine the astronauts

walking on the moon!

See below…

Parts E and F:

A

e. Vertical “speed” greatest? least? A & E / C

allEparabola

duh! NO! Height of bldg matters!

directly above the flare; both have same (initial) horizontal velocity

20 m/s negative

won’t! time is “y” thing

will go further (2 x as fast = ??)

YES! See IP

6.0 secondsHave inverse relationship: longer jumpmeans less height and vice-versa. See graph on Day 3 asst.

Monday 10/3 – Homecoming week 20111. Hand out high school textbooks + Forces assts 2. Do vectors sheet together3. Go over HS worksheet (see previous slides)4. Redo ditto C 1-6 (#5 w/ calculus) & Study (Projectiles Test tomorrow)

Tuesday 10/41. Projectiles test2. Asst: Newton’s 3 Laws worksheet (asst 1)

Wed 10/51. Notes on equilibrium problems (asst 3)

• Do/Start “dead parrot” & “misc” problem

2. Brief notes on the 1-D problems (asst 2)3. Asst: Rest of asst 3 problems

Thurs 10/6 (no HW day, KL at Negotiations)1. Work period ½ hour asst 32. Work period ½ hour asst 2Note: skipping asst A (book notes + ppt notes) this year – No HW day

Friday 10/71. Some Newton’s Laws demos2. Work period3. Asst: Rest of asst 2 problemsNote that all three Forces assts will be picked up Monday****