RPS Screws

In Class:

• Lecture on Screws.
• Lecture notes available here.

Homework:

• Continue to work on Lab 4.1: Simple Machines Scavenger Hunt
• RPS HW 4.11: Screws (Due Mon 12/3/2007)

Videos:

Screws
(I'm having trouble uploading this video. I'll keep trying)

HPS Wheel & Axle

In Class:

• Discuss science fair weekly progress update sheets. First one is due next Friday, 12/7/2007.
• Finish lecture on screws (about 5 minutes)
• Lecture on Wheel and Axle, including mapping concept of wheel and axle as a modified version of a lever.
• RPS version (same as HPS) of lecture notes on screws available here.
• RPS version (slightly different from HPS) of lecture notes on wheel & axle coming soon.
  

Homework (due Monday 12/3/2007):

• Science fair schedules (what each team is going to accomplish along with due dates)
• RPS HW 4.10: Levers, Inclined Planes, and Wedges
(Though printed due date on the sheet is Fri 11/30/2007, the actual due date for this class is Monday 12/3/2007.)

• RPS HW 4.11: Screws

HPS Screws, Simple Machines Lab discussion

In Class:

• Review RPS HW 4.9: Inclined Planes and Wedges
• Discuss expectations for Lab 4.1: Simple Machines Scavenger Hunt.
• Lecture on Screws (we didn't quite finish). Videos of lecture will be available later (I will record the regular physical science class lecture either tomorrow or Monday)
  

Homework:

• None. It will be given tomorrow after the lecture is complete.

RPS Simple Machines Lab instructions and some Review

In Class:

• Discuss expectations for Lab 4.1: Simple Machines Scavenger Hunt.
• Review RPS HW 4.9: Inclined Planes and Wedges.
• Time to work on RPS HW 4.10: Levers, Inclined Planes, and Wedges.

Homework (due Fri 11/30/2007):

• Complete RPS HW 4.10: Levers, Inclined Planes, and Wedges

CPS Energy Transformations

In Class:

• Energy Transformations lecture.

RPS/HPS Inclined Planes and Wedges

In Class:

• Inclined planes and wedges lectures.
• Briefly discuss Lab 4.1 (See "Homework.")
• Lecture note available here. Notes are from RPS student, but presentation is the same for both classes.
  

Homework (due Thu 11/29/2007):

• RPS HW 4.9: Inclined Planes and Wedges
• Read Lab 4.1: Simple Machines Scavenger Hunt. There is an example here of what I am looking for in this lab. The example is from a student who earned an "A" on the assignment last year. Two of the examples were included in the paper version of the lab assignment handed out in class.

Videos:

• Coming soon.
  

RPS/HPS Levers

In Class:

• Review RPS HW 4.7: Machines Fundamentals.
• Lecture on levers (videos are from Honors class today)
  
• Lecture notes (from RPS class) available here.
  

Homework (due Wed 11/28/2007):

• Read pp. 186-189 in textbook
• RPS HW 4.8: Levers

Videos:

Levers I


Levers II (coming soon)

CPS Time to work on Energy Basics HW

In Class:

• Time to work on CPS HW 4.1: Energy Basics.

CPS Start Unit 4: Energy, Work, and Power

In Class:

• Notes on energy: the six basic forms of energy
• Kinetic and Potential energies as parts of total mechanical energy

RPS/HPS Machine Terms

In Class:

• Simple machines terms
• Ideal Mechanical Advantage formula
• Lecture notes available here.
  

Homework (due Tue 11/27/2007):

• Read pp. 179-183 in textbook
• RPS HW 4.7: Machines Fundamentals

Videos:

• Coming soon.

CPS No class due to Pep rally

No class material covered today due to pep rally. Enjoy the Thanksgiving break!

HPS Donuts and Machines Intro

In Class:

• Donuts!
• Begin terminology and review of what the six simple machines are.

RPS Retest Quiz 4.1 (Optional)

In Class:

• Optional retest on Quiz 4.1: Energy, Work, and Power. Those students who are not retesting may use this time to work on other work or get extra help from Mr. Yamashita.
• G period only: no class due to pep rally. Retests of quizzes will happen after the Thanksgiving holiday break.
  

CPS Review Tests

In Class:

• Hand back, review, and correct tests on unit 3: Newton's Laws. Optional retesting will occur after the thanksgiving break.
• Tomorrow's class will likely be cut short or canceled due to the school pep rally.

RPS/HPS Review Quizzes

In Class:

• Review Quiz 4.1: Energy, Work, and Power.
• Hand back and review other homeworks, too.
• No videos today.
  

No Homework.

CPS Test 3: Newton's Laws

In Class:

• Test 3: Newton's Laws.

RPS/HPS Quiz 4.1: Energy, Work, and Power

In Class:

• Review RPS HW 4.6: Energy, Work, and Power (about 10 minutes). Collect work.
• Quiz 4.1: Energy, Work, and Power (rest of class period as time limit.)
• No videos today.
  

No Homework.

CPS Test Review

In Class:

• Test Review for tomorrow's test on Newton's laws of motion.
• Students given index cards for notes, review sheets, and test outline. Time in class to work on practice questions sheet.
  

Homework:

• Study for test.

RPS/HPS Energy, Work, and Power Review

In Class:

• Review and hand in RPS HW 4.5: Power.
• Time to work on RPS HW 4.6: Energy, Work, and Power homework in small groups. This assignment should be pretty good preparation for the quiz scheduled for tomorrow.
• Assignments due today were collected, stamped (received dates), and handed back immediately (not yet corrected) so that students can use them to study. Students are expected to hand in the assignments again tomorrow so that they can be graded.
  
• HPS: class majority opted to have quiz tomorrow.
• No video today.
  

Homework (Due Fri 11/16/2007):

• Study for quiz.
• RPS HW 4.6: Energy, Work, and Power.
  

CPS Newton's 1st Law and Video

In Class:

Test announced: Fri 11/16/2007 on Newton's 3 Laws of Motion

• Finish lecture presentation on Newton's First Law of Motion.
• Video: Newton's Laws (Mechanical Universe series). Students fill out worksheet while watching video.

HPS Power

In Class:

• Review RPS HW 4.4: Work.
• Power lecture (see video for RPS class)

Homework:

• RPS HW 4.5: Power. Due 11/15/2007

RPS Power

In Class:

Quiz announced: will be on Fri 11/16/2007

• Review RPS HW 4.4: Work.
• Cover that direction of force must be in direction of object motion for there to be work.
• Lecture on power.
  
• Notes available here.

Homework (Due Thu 11/15/2007.):

• Read pp. 201-203 in textbook.
  
• RPS HW 4.5: Power.

Videos (these are all pretty short):

Relationship between work and direction of force


Power


Power practice problems 1-3


Power practice problems 4-5

CPS Start Newton's First Law

In Class:

• Review and retest Quiz 3.2: Newton's Third Law. (Optional to retest)
• Start lecture on Newton's First Law of Motion.

RPS Work

In Class:

• Review RPS HW 4.3: Energy Conservation and Efficiency.
• Work lecture. (videos below)
• Notes available here.

Work Lecture


Work Practice Problems.

Homework:

• RPS HW 4.3: Work. Due 11/14/2007 (typo on sheets states it is due 11/15; it is due 11/14)
• (Sorry, the numbering of homeworks seems to be a little screwed up)
  

HPS Work, revisited/reviewed

In Class:

• Review RPS HW 4.3: Energy Conservation and Efficiency II.
• Discuss work: direction of force must be in same direction as motion.

Homework:

• RPS HW 4.3: Work. Due 11/14/2007 (there is a typo on the sheet, which states it is due 11/15/2007 -- it is due the 14th.)

RPS & HPS "Bounce Efficiency" Exercise

In Class:

• Review RPS HW 4.2: Conservation and Energy and Efficiency. Students hand in for timestamp and then receive back immediately so it may be used as reference for tonight's homework.
• Exercise: calculate the "bounce efficiency" of a ball. Students bounce a ball, measure its height, and calculate the percentage "efficiency" of the bounce (recovery of potential energy of the ball after a single bounce).
• No videos today.
  

Homework:

• RPS HW 4.3: Energy Conservation and Efficiency II. Due Tue 11/13/2007.

CPS Quiz 3.2: Newton's Third Law

In Class:

• Time to study for quiz (about 10 minutes)
• Quiz 3.2: Newton's Third Law of Motion
• Time to work on CPS HW 3.3: Newton's Third Law and CPS Lab 3.1: Newton's Third Law.

CPS Time to finish Lab 3.1: Newton's Third Law

In Class:

Quiz announced for tomorrow (on Newton's Third Law of Motion)

• Time to finish Lab 3.1: Newton's Third Law (balloons section).

RPS Energy Efficiency

In Class:

• Review Percentage calculations
  
• Energy Efficiency lecture.
• Time to work on RPS HW 4.2: Energy Conservation and Efficiency.
• Notes available here.

Review of how to calculate percentages


Energy Efficiency Lecture Part I


Energy Efficiency Lecture Part II

Homework:

• RPS HW 4.2: Energy Conservation and Efficiency (due 11/9/2007)

HPS Energy Efficiency and Work

In Class:

• Review percentage calculations
• Energy Efficiency lecture
• Work lecture (will probably have to touch base on it again tomorrow)

Homework:

• RPS HW 4.2: Conservation of Energy and Energy Efficiency (due 11/7/2007)

CPS Retest Quiz 3.1 and Lab 3.1

In Class:

• Retest (optional) Quiz 3.1: Forces and Newton's Second Law of Motion
• Work on CPS Lab 3.1: Newton's Third Law of Motion
• Finish (and hand in) CPS HW 3.3: Newton's Third Law of Motion

HPS Review Test 3, Energy Transformations

In Class:

• Review Test 3 (about 20 minutes)
• Energy Transformations lecture (video available under RPS class posting)

No Homework.

RPS Energy Transformations

In Class:

• Lecture on Energy transformations. Several examples used:
• Bouncing ball (Kinetic and Potential energy)
• Hydroelectric dam (see RPS Notes 4.1: How a Hydroelectric Dam Works)
• Electric Fan
• Human consumption of food
• Video coming soon.
• Notes available here.
  

No Homework.

HPS Start Unit 4: Energy, Work, and Power

In Class:

• Time to finish Test 3: Newton's Laws (about 20 minutes)
• Present introductory lecture on Energy, Work, and Power: six basic forms of energy, formulas for kinetic and potential energy

No Homework.

CPS Newton's Third Law

In Class:

• Present lecture on Newton's Third Law of Motion
• Time to work on CPS HW 3.3: Newton's Third Law

RPS Finish Energy Intro Lecture

In Class:

• Complete lecture on six forms of energy
• Formulas for total mechanical energy (kinetic energy and gravitational potential energy)
• Time to work on RPS CR 4.1: Energy Basics. ("CR" stands for "ClassRoom" exercise)
• Notes available here.
  

Homework:

• Complete RPS CR 4.1: Energy Basics if not done in class. (Due 11/7/2007)

HPS Terminal Velocity Notes

For Andrew E. in my honors class, here are the notes on Terminal Velocity that were presented in class. This is a temporary post and will be removed later.

Terminal Velocity
Air Resistance: the force of air acting on an object moving through the air. Basically, the force of friction between air and any object moving through it. The 2 factors in this course that affect air resistance are:

1. The surface area of the object moving through the air (greater surface area = greater air resistance); and
2. The speed of the object moving through the air (greater speed = greater air resistance).

Terminal Velocity: the greatest downward speed attained by a falling object (through the air). When an object is falling at its terminal velocity:

• the terminal velocity is a constant speed. The forces of air resistance (pushing object upward) and gravity (pulling object downward) are balanced, so there is a net force of zero on the object.

After these notes, we watched the video, "Air Forces," on the "Video Field Trips" DVD, which does a marvelous job of explaining the interactions of forces acting on a skydiver.

HPS Test 3: Newton's Laws

In Class:

• Test 3: Newton's Laws.
• Most students did not finish test, so some time will be allotted on Monday to complete the test. (Tests and note cards were handed in to Mr. Yamashita at the end of the class period.)

CPS Quiz 3.1: Forces and Newton's 2nd Law

In Class:

• Quiz 3.1: Forces and Newton's 2nd Law of Motion
• Time to work on CPS HW 3.2: Newton's Second Law II
• Time to work on posters on forces and Newton's Second Law

RPS Review Unit 3 Tests, Start Unit 4: Energy, Work, & Power

In Class:

• Review Test 3: Newton's Laws.
• Start Unit 4: Energy, Work, and Power (intro lecture).
• Notes available here.
  

Homework:

• Read pp. 124-131 in textbook. Do questions 1-3 on p. 131. Due Mon. 11/5/2007

HPS Terminal Velocity & Test Review

In Class:

• Terminal Velocity
• Time to work on HPS Notes 3.2: Unit 3 Test Study Guide.

Homework:

• Study for tomorrow's test on Newton's Laws.

CPS Newton's 2nd Law Wrap-up

In Class:

• Time to work on CPS HW 3.2: Newton's Second Law II
• Create posters summarizing forces and Newton's 2nd Law of Motion. Poster must:
• Teach reader about forces and Newton's 2nd law of motion
• Include 3 examples of forces from real life, at least one of which must be from student's daily life.

Homework:

• Study for Quiz (tomorrow) on Newton's 2nd Law and Forces.

RPS Test 3: Newton's Laws

In Class:

• Test 3: Newton's Laws