Let's get a little more Energetic!

This weekend please get a jump on our next unit , Energy

1.  Read over Chapter 10 "Energy" in your text

2.  Watch the Walter Lewins Video Lecture 11 
Lecture 11: Work - Kinetic Energy - Potential Energy - Conservative Forces - Conservation of Mechanical Energy - Newton's Law of Universal Gravitation

A new Quest is coming your way.

Practice Practice

I have added a new link to the side bar to the right,
AP Physics C Sample Problems and Solutions/Scoring Guides

The best way to really GET physics ( and to score well on the AP exam) is to have many chances to apply the concepts to a variety of problems.  Here are all the actual AP Free response questions from former AP Exams.

I hope this is helpful.

Smart People Read

Holiday Book recommendations:

With the Holidays approaching, it is time to start piling up books to read while you are procrastinating about your college recommendations.

The book I was telling you all about The Martian is a great and quick Scifi read.
It will be made into a movie next year, directed by Ridley Scott.
Read it before it becomes cool.  It may already be too late.

Whatever it takes... but don't Force it!

Actually... at this time of the year a little forcing of oneself is not a bad thing.

New Quest assignment was posted tonight  11-20.   Newtons Laws III-  not just about N3L but mostly about applying N2L with remembrance of N3L.

Lab Work:

The Car Push lab is past due and needs to be turned in asap.  If it is late then make it great.

The  Hook's Law lab:  Combinations of Springs is due by Monday 11-24.  Please have your questions ready for Friday.

Here is some good data in case yours is wonky.

Click here to see some Good Spring Force Data

Unit 3 -The Force is Strong in our Family

We are well into our 3rd Unit!   All about all Kinds of Forces.

Major Topics will include:

• Newton's Laws
• Weight vs. Mass vs. Inertia
• N3L forces vs. Balanced Forces
• Solving problems in 1 and 2 dimensions (inclined planes...)
• Tension and Atwood Machines
• Friction
• Circular Motion and Centripetal Force
• Springs in series and parallel (Hook's Law)
• Velocity dependent forces (air resistance...)

Readings:   Your textbook has lots of great examples:  We are covering:  Chap 5-8.


Homework:  Three Large Assignments:
       Newtons Laws !  Due Nov. 4
       Newtons Laws II    Due...
       Newtons Laws  III


Lab Work:
No major lab reports but several mini-labs (and mini-reports)
      Mini lab:   The Great Car Push
      Mini lab:    Force Vectors??
      Mini lab:    Playing Hookian: Springs and Hookian Forces


Please read about Newton's Third Law at the following link http://www.physicsclassroom.com/class/newtlaws/Lesson-4/Newton-s-Third-Law

The Big Push: data and assignment

Presenting the Data from the Car Push!
Here is your data analysis assignment.
•Using excel calculate the acceleration for each trial.
•Plot an appropriate graph of Force and Acceleration:
        Q: What does the trend line tell you? 
•The mass of my car  (con mio) is about 3000lbs (1400kg).
        Q: Is this consistent with the data?  If it is not, propose hypotheses explaining what went wrong.
                i.e.   What assumptions did we make that might be erroneous?
                        Where is the likely sources of error?
                         If you think we were pushing up hill can you calculate what angle would account  
                         for our discrepancies?  do it if you can.
•Friction/Resistive forces: Can you measure friction from our data? if you can try.
•What else can you make of our results?
•What should we have done differently?

Real Physics:  Rise to the occasion!
New Car Force Data Link

May the Forces be with You!

Short week this week due to Teacher Conferences.
Jump into this weeks Quest Assignment "Newtons Laws !" 
It is a pretty large assignment but it will get us into the unit. 
Plan on spending at least part of Wednesday going over the problems that are giving you trouble.

No school Thursday Friday.  Make plans to get together as study groups.

Don't forget about that Projectile motion lab.

End of Unit 2 (2-d motion)

Our unit 2 test will be next Wednesday, 10-22.   
     •Projectile Motion
     •Vectors
     •Circular Motion

Studying : For more practice problems look at the problems at the end of chapter 4 in your text.
Also, consider looking at the "useful link" : Physics tutorial listed here  at right.

Projectile Motion Labs:  
 Due 10-22.  Let's get these wrapped up.  See me if you are having problems.

Bowshot Data: David Anuta/MDP

If your data or videos did not work out - you may use these videos for data analysis.

test bowshot - wider angle shot
trial 1 about 45? 99yards
trial 2 Lower angle 85 yrds
trial 3 much steeper than 45- 75
trial 4 greater than 45 - 100yards
trial 5 less than 45 -103 yrds

Week of October 13 Circular Motion

Here is your to do list for this week:

1.   By Wednesday finish the Golf Problem introduced on Monday.
2.   Read for learning :  Sections 4.5-4.6 in your Text
3.   Continue to work on the Projectile motion lab and your 5 minute presentation.
4.  Launch into  the new Quest Assignment posted today.  "Circular Motion" 

Question:  When can you do your presentation?  sign up Wednesday 10-15

Vectors and Projectile Motion Week of Oct. 6

Projectile Motion Lab:

You self designed PML should be underway with data analysis and problem solving.
Remember, your goal is to conduct as complete analysis as possible for motion in 2D.
 Include:
 •Detailed tables containing all relevant data. 
•Graphs of  X vs. time,  Y vs. time and  trajectory graphs Y vs X. 
•Presentation of how you found and calculated the initial velocity and launch angle. 
•*If you can or if you are doing the "standard" approach you will need to present a graph of:
 Range (x) vs. sin2θ checking your datas approximation to the range equation.
Analysis:
•Using your data try to use it to answer some interesting questions (i.e. that are interesting to you)

We will discuss how your lab report will be included in class Wednesday, 10-8.

NEW QUEST ASSIGNMENT POSTED:  10-5   DUE 10-10
       "2d motion: more vectors and projectiles"
Work with me and with each other on solving these problems.  
Remember to work them in your notebooks with work clearly shown and organized.
You play as you practice.

Changing things up with a Change in direction without a "Change in Direction"

This next Quest HW is short and sweet.  Hopefully it will allow you to practice somethings that you have encountered in Math an/or General Physics.

Give this assignment a good look and we can discuss them on Monday: "Vector Basics"
Read over the first several sections in Chapter 4 of Knight and use the vector basics in chapter 3 as a resource.

Projectile Motion Video Analysis labs:  
            Get a group together and propose a lab- consult with me by  
                                                          Wednesday.
               We need to get collecting video data while the weather is still good.  

Week of Sept 15

For Class on Wednesday:
I.   Have some QUESTions ready for class discussion.
            Have solutions ready for the AP 2013 question (green sheet)

II. Come prepared with some ideas for the Lab 2: Video analysis of Projectile Motion

Brainstormed Ideas so far:
1.  Drag on soccer ball, spin vs. knuckle
2.  Rocket: Acceleration and Velocity of, Drag and windspeed.
3.  Arrow launch:  Range vs. Angle
4.  Shot put/Javelin -- optimum angle
5.  Human acceleration:  sprint & long jump analysis
6.  Baskeball???    More Backspin vs.  less backspin
7.  Potato Cannon???
8. Water balloon launcher??

Try to  think of an experiment that can actually answer a question about the relationship between 2 variables.   Remember the KIS rule.

Assignments Week of September 8

QUEST Homework:   "Kinetics 1" will accept your answers until 5 pm on Wednesday.  Make sure to come with your QUESTions for class on Friday.

Lab 1: Terminal Velocity.    Formal Lab Report Due Monday 15 Sept.   By Friday, 12 Sept  have your analysis and graph done so we can troubleshoot your problems. 

A new QUEST Assignment will be posted Thursday or Friday.

Remember:  Form study groups and ask me questions often.

Homework due dates and what you should be working on.

To avoid too much confusion:

The graphical analysis worksheet should be completed by this Friday.

The Quest assignment Kinematics 1 has a due date posted on the site and represents the date and time when answers will no longer be accepted and when the worked out solutions will be available.
 Show your work in a dedicated spiral "Homework journal" so we can have conversations about how you are approaching the problems. 

Your "insightful" letter is due by next Monday. Please give it a little thought an keep it under 2 pages pleases.

Friday we will use our labquests to collect data on the relationship between mass of a falling body and terminal velocity. 

Downloading Loggerpro3 from Vernier

Use these links to install data collection and graphical analysis software from vernier on your  home computer or lab top.  Wilson has a site license so students can download this for FREE. You will need to give the password that I give you in order to download this software.

For Macs:  
http://www.vernier.com/files/?program=237e1411056222-email=MDUCHOW@PPS.NET

For Windows:
http://www.vernier.com/files/?program=236e1411056222-email=MDUCHOW@PPS.NET


Graphical Analysis App:
If you wish you can also buy the Graphical Analysis App for mobile devices. This allows you to wirelessly receive data from experiments and demonstrations. This app costs around $5 and is optional.
http://www.vernier.com/products/software/ga-app/

First Things First!

Welcome to AP Physics!   

It promises to be an exciting year and this class will undoubtedly evolve as we learn to work together to maximize learning and have a good time doing it. 

Making a Homework Account

We will be using an online AP Physics homework data base.  It will allow you to check your answers and at times be able to see worked out solutions to your homework problems. It will also keep track of how many times it took you get the correct answer.

 Go to this link and start an online homework account. Click on "log in to Quest" and then choose the small print "I need a UT EID" under the login button. In the next window choose "get a UT EID". Answer no to all the question. After you submit your information it will send your ID code to your email account. With this code you will sign in to my class and start the first assignment. You may proceed to sign in now or bring your EID code and password on Thursday. On Thursday we will log in as a class, I will start accepting your enrollment and we will start the first assignment.

This is how to sign in:
Return to the link above and log in.
You will then need to select a class based on a unique number. For Wilson AP Physics the unique number is 33133.  Enter the number 33133 and then select look up course info. Scroll down by clicking the arrow on the window that appears through the any other classes designated with that unique number until you find :

Ap-physics

33133

Wilson AP Physics C: Mechanics

Duchow-pressley

MWF period 5

1

It will probably be one of the last ones. Select it and then select “request enrollment.”

I will have to admit you into the class. The next time you log in, after I admit you, you will be able to use the "select course" and "select assignment" windows to start the Kinematics homework.