The Week of 11/1-11/5

Late work/Extra credit deadline for 1st quarter is Wednesday 11/3 by 12:30 pm!!

Monday 11/1:  Turn in Rocket Lab if not already.  Check off HW #7 p. 109 1-4 and go over.  Work on Chapter 3 Review Sheet.  Chapter 3 Test on Thursday 11/4.
Tuesday 11/2:  More on Review Sheet (turn in Thursday before test).  Start Forces:  types of forces, free-body diagrams, balanced forces.
Thursday 11/4:  Turn in Chapter 3 Review.  Take Chapter 3 test.   More on Forces.
Friday 11/5:  No School.  Teacher work day.  Enjoy your time off!

Rocket Lab

 Your Lab Should Have:

1)  A neat data table

2.2)  Calculation of initial velocity for each angle

    (show work for 1 example)

3.3)  Calculate how long the rocket was in the air for longest and       shortest

4.4)  Calculate the height of the rocket for highest and lowest

5.Extra Credit:  Graph launch angle versus range on LoggerPro

And the Data (thanks to Grace and the rocket runners)

Angle              Distance in yards

15                           66, 60

25                           84, 87

35                           100, 92

40                            108, 95

45                            89

The Week of 10/25-10/29

• Monday 10/25:  More on Projectiles launched at an angle.  Continue working on projectile worksheet (due Thursday).
• Tuesday 10/26:  Classic physics problem:  monkey in a tree.  Video example.  Derive the Range Equation.  Finish projectile problems.
• Thursday 10/28:  Turn in Projectile Worksheet.  Rocket Lab.  Extra Credit:  Make a graph of angle versus range using LoggerPro.  Data table, calculations, and graphs due Monday 11/1.  Relative motion.  HW#7, p 109 1-4.
• Friday 10/29:  Snicker's Lab:  brick or treat.  Can your group get the horizontally launched steel ball in the cup?  Check off HW #7 and go over.  Hand out Chapter 3 Review (test next Thursday).

The Week of 10/18-10/22 and Vector Addition Answers

• Monday 10/18:  Navigation Activity with Flight Maps.  Vector Addition Worksheet due tomorrow.
• Tuesday 10/19:  Turn in Vector Addition worksheet.  Explain Navigation Activity Part II.  Start simple projectiles.
• Thursday 10/21:  Quick Projectiles Lab with quarters.  HW #6 p. 102 1-4
• Friday 10/22:  Turn in Quick Projectiles Lab and Navigation Activity.  Check off HW #6 and go over.  Extra Credit hand-out.  Projectiles launched at an angle.  Homework:  First side of projectile worksheet

Answers for the Vector Addition Worksheet:
1.  11.7 km at 31 degrees W of N
2.  31.0 km/h at 15 degrees E of S
3.  412 N at 14 degrees north of down
4.  x=9.06 m/s  y = 4.23 m/s
5.  x= 35.1 m, y=71.9 m
6.  x = 86.9 m, y=-23.2 m
7.  x = 0, y=5 m
8.  9.0 km t 19 degrees S of W
9.  563 km/h at 1.64 degrees S of W
10.  16.6 km at 61 degrees
11.  8.9 m/s at -63 degrees or 297 degrees
12.  35 N at -1.7 degrees or 358.3 degrees

Note that your answers may be slightly different due to rounding and you may have found a different angle.  Check to see if your angle is within 90, 180, or 270 degrees of mine.

Progress Reports (To Parents and Students)

In the next day or two you should be receiving your progress reports in the mail.  Because the district is piloting a new grading program, the progress reports from me will probably be in a different form.  For one thing, every student will be receiving one from me, even if they are doing well in the class.  I also included no comments at this time because I am not up to speed with that yet.  If you would like updated information from me about missing assignments, please e-mail me.  Hopefully in the next couple of weeks, the on-line grade check will be available and you will have more information about your student's progress.

Reaction Time Lab Instructions and Chapter 2 Review Answers

Reaction Time Lab. 

Measure your reaction time without a timer!

1. Make a prediction of your reaction time
2. Write your procedure (drawing helps)
3. Take data (neat, labeled data table).  At least 10 trials per person
4. Calculate average reaction time (show work)
5. Calculate the uncertainty of the reaction time (high-low divided by 2)
6. Turn in!  (due by Tuesday)

Answers to Chapter 2 Review.  e-mail me if you have any questions!

1.  0.080 km

2.  70. km/hr

3.  111 m

4.   0

5.  89.3 m

6.  -15.2 m/s (or simply 15.2 m/s since I said "speed")

7.  60.1 m

8. and 9. to be discussed in class

The Week of 10/11-10/15

• Monday 10/11:  Go over review problems.  Prepare for chapter 2 test.
• Tuesday 10/12:  Turn in Reaction Time Lab if not already.  Turn in Chapter 2 Review and take Chapter 2 test.  Start on vectors.
• Wednesday 10/13:  Simple vectors and the Pythagorean Theorem.  (Short classes today!)
• Thursday 10/14:   Block Day. Adding vectors that are not perpendicular.  Navigation maps and adding vectors.
• Friday 10/15:  Even Block.  No class for you.

The Week of 10/4-10/8

• Monday 10/4:  20 minutes to finish homework from last week (p. 58 1-5).  Free Fall and calculations with free fall.  HW #5 p. 64 1-4, 5+6 are challenge problems.
• Tuesday 10/5:  Check off HW #5 and go over.  Graphing and free fall.  Motion detectors and free fall.  Hand out Chapter 2 Review.
• Thursday 10/7:  Reaction Time Lab.  Time Dilation and relativity.  Work on Chapter 2 Review.  Chapter 2 test next Tuesday 10/12.
• Friday 10/8:  Statewide Inservice Day.  No School!

Heads up for next week.  There will no Late Opening next Wednesday, October 13 because Lincoln will be engaged in school-wide testing (see school website for details).  In addition, Block Days will be on.... Thursday (odd block) and Friday (even block)