The Week of 11/26-11/30

This week we are having FLEX schedules on Tuesday and Wednesday, so come in for test corrections on the Chapter 3 Test!

• Mon 11/26:  More on forces and Newton's Laws.  Chapter 4 Problems 1-9 for Tues/Wed.
• Tues/Wed 11/27-11/28:  Check off Problems 1-9.  Finish Newton's Laws.  Newton's Laws Lab.  Mass vs. Weight.  Problems 10-14 on Chapter 4 Problems for Thurs/Fri.
• Thurs/Fri 11/29-11/30:  Check off 10-14 and go over.  Friction.  Slipping and Sliding Lab.

Parent-Teacher-Student Conferences: Please Read!!

As you know, Parent-Teacher-Student Conferences are coming up next Monday and Tuesday. I want you to know that I will not be there for the morning session on Tuesday because I will be meeting with the teachers of my own kids acrosss town. Generally that doesn't take the whole morning session and I arrive at Lincoln by 10:15 or so, but I definitely won't be there at the beginning. Thanks for your understanding. I look forward to meeting with many of you next week!

The Week of 11/13-11/16

Quarter Grades are updated.  Check them and let me know on Tuesday if you have questions.

• Tues/Wed 11/13-11/14:  Questions of Chapter 3 Review?  More on Forces.  Free-Body Diagrams.  Newton's 1st and 2nd Laws.  Homework:  Problems 1-3 on Chapter 4 Problems.
• Thurs/Fri 11/15-11/16:  Turn in Chapter 3 Review.  Take Chapter 3 Test.  Check off Homework and go over.  Continue with Newton's Laws.  Problems 4-6 for next time.

Answers for Chapter 3 Review, Test on Th 11/15 (3rd) and Fri 11/16 (5th)

1.  13.0 blocks at 22.6 degrees S of E
2.  92 m
3.  13.5 m and 142.5 degrees (37.5)
4.  0.83 s
5.  226 m
6.  b)  361 km/h    c)  1.6 degrees S of E
8.  (yes, I skipped 7, I'm not sure why....)
a)  vy = 130 m/s, vx = 96 m/s
b)  190 m (x), 240 m (y)
c)  vx = 96 m/s, vy = 110 m/s
d)  150 m/s at 49 degrees above horizontal
e)  13 seconds
f)  2500 m!!

The Week of 11/5-11/9: End of the Quarter.

SPARK Lecture on the history of radiation treatment.  Monday 11/5 at 3:30 in room 169.  Get there early!  Doors will be closed when the room is full.

• Mon/Tues 11/5-11/6:  Check off Problems 10-16 and go over.  Go over Rocket Lab and hand out Chapter 3 Review.  Finish Rocket Lab and turn in.  Work on Chapter 3 Review.
• Wed/Thurs 11/7-11/8:  Deadline for late work and extra credit.  Go over Chapter 3 Review.  Start Forces up to Newton's Laws.  Chapter 3 Test will be next Tues/Wed.

Enjoy your 4-day week-end!

Rocket Lab

Here is the data for both classes.  You will notice that there are 2 trials recorded for each angle.

3rd Period

Angle (degrees)Distance (yds)
15.0                 20.5, 28.0
20.0                 27.3, 26.2
25.0                 29.8, 30.5
30.0                 38.0, 33.1
40.0                 37.0, 42.0
45.0                 38.3, 24.6

For the write-up (due in class on Mon/Tues 11/5-11/6, although you will have some time to finish it then).

1)  Neat data table with title, labels, and units
2)  Calculate distance in meters (1 yd = 0.9144 meters)
3)  Calculate initial speeds (1 per angle)
4)  Calculate height (1 per angle)
5)  Calculate time in air (1 per angle)
6)  Show work for 1 example calculation of each type.



5th Period Data

Angle (degrees) Distance (yds)
15.0                  26.2, 24.5
20.0                  27.1, 26.8
25.0                  32.5, 36.5
30.0                  36.2, 30.2
35.0                  28.3, 29.5
40.0                  31.8, 28.5
45.0                  36.9, 41.2

For the write-up (due in class on Mon/Tues 11/5-11/6, although you will have some time to finish it then).

1)  Neat data table with title, labels, and units
2)  Calculate distance in meters (1 yd = 0.9144 meters)
3)  Calculate initial speeds (1 per angle)
4)  Calculate height (1 per angle)
5)  Calculate time in air (1 per angle)
6)  Show work for 1 example calculation of each type.