Momentum and Kinetic Energy Essential Questions

• How are momentum and kinetic energy similar? How are momentum and kinetic energy different?
  
• How can a physical system be described using the concept of momentum?
• How can we demonstrate the conservation of momentum?
• (Physics TEKS 5: The student knows that changes occur within a physical system and recognizes that energy and momentum are conserved.)

Tuesday 11/24/2009, Monday 11/30/2009  Momentum and Kinetic Energy.

• Momentum Notes (daily grade) Moodle activity. 
  
• One-Dimensional Collisions Virtual Lab Moodle activity.
  

Forces and Newton's Laws, Essential Questions:

Forces and Newton's Laws, Guiding Questions:

Catapult/Trebuchet Project

• If you turn in your project Oct 29(B) or Oct 30(A): 9 m+ = 100.  8 to 8.9 m = 85.  6 to 7.9 m = 80. 
• If you bring it in on Nov2(B) or Nov3(A): 15+ m = 100.  14 to 14.9 m = 85.  12 to 13.9 m = 80. 
• If you bring it in on Nov4(B) or Nov5(A): 20+ m = 100.  19 to 19.9 m =85.  17 to 18.9 m = 80. 
• A project brought in will be an automatic 70.

• The projectile will be a marshmallow.
• The distance is where the marshmallow hits, not its final stopping distance (i.e., rolling does not count).
• Can be built with any material, you must construct it. No premade catapults, no kits. Your project cannot be painted.
• You cannot hold the catapult other than to pull back the arm.
• The base of your catapult must be on the ground.
• No sling shots.
• The arm cannot bend. It must pivot.
• No premade catapults!
• No traps! (rat, mouse, bear)
• You may not use a striking force to provide the launce energy.
• If you are going to use weights to provide the launch energy, you cannot drop the weight on the project.
  

Thursday, 10/8/2009, Friday 10/9/2007

• Together, we will practice Vector and Projectile Motion multiple choice questions using Moodle.
• You will do the Displacement Vector Practice assignment in Moodle for a daily grade before the next class.
• You will review your Free Fall Test and make corrections for a daily grade before the next class.
• You will finish "Quest HW3 - Vectors" before Saturday night.
• You can read about Vectors in the Holt textbook, Chapter 3.  The test will cover:
  • Displacement vectors
  • Velocity vectors
  • Vector addition and vector resultants
  • Vector components
  • Converting compass bearing to angles in the standard xy coordinate frame of reference.  (We did this in the Vector Journey spreadsheet.)
  • Projectiles launched horizontally.

• How is motion measured and represented?
• How can proper graphs be created and used to make predictions?
• How does projectile motion compare and contrast to the forms of motion studied so far?
• What are the applications of projectile motion?
• What information can be predicted and what information is needed for these predictions in projectile motion?
• How can we describe 2-dimentional motion of an object?
• Why is defining a frame of reference necessary for describing motion?

• Log into Moodle.
• Click on your name.  Click on edit profile.
• Click show advanced.
• Scroll down to the optional area and fill in the following:
  • ID Number:  type your student ID number.
  • Institution:  type in teacherperiod.  Example:  For Ms. Scott's second period, type scott2
  • Department:  If you have another science teacher, put that teacher's name and period here, Example:  pedraza5.

• Your group will draw your displacement vectors from your walk around the school on paper to make a vector displacement map.
• The names of your group members go on the back of the paper.
• Your map needs a compass rose aligned with the edge of the paper.
• Use the scale 1.0 cm = 5.0 meters.  Put this scale on your paper.
• Use a ruler and protractor to draw each displacement vector the correct scale length and bearing (direction).
• Start each vector from the tip of the previous vector.
• Label each vector with the segment number.
• After all the vectors have been added, draw the resultant displacement in a different color.  Label "Resultant".  The direction of the resultant vector is from the starting point of your journey to the tip of the last displacement vector.
• Measure the resultant distance and direction, and put this information on your paper.
• Calculate your group's average speed in meters per second and average velocity in meters per second.  The direction of average velocity is the same direction as your resultant displacement.  Put this information on your paper.
• Put a title on your map, "Displacement Vectors Around Round Rock High School".

• Free Fall Test next class!
• Correct Test 1 in moodle for a daily grade.  I have opened the Measurement, Motion and Problem Solving Test in Moodle for you to review (click on your grade to see which answers you got wrong).  Click "Reattempt" and correct your test for a daily grade.  If you made 100% on the test, you should review your test, but you have no corrections!
• I will go over some of the homework problems in class.
• I have posted Quest HW3 - Free Fall.  It is due 10/2/2009 at 11PM.  You should review this assignment before you take the Free Fall Test.

• Maximum Vertical Ball Throw lab. 
• Physics Extra Quiz 1. 
• When you are done with the quiz, login to Quest Home page using your UT EID. 
  • 5th period, enroll in course #99547. 
  • 7th period, enroll in course #99548. 
  • 8th period, enroll in course #99549. 
  • 4th period PreAP, enroll in course #99521.

Monday, 9/14/09 (B), Tuesday 9/15/09 (A)

• Feather/Penny Race demo.  You need to record your observations in your composition book. 
• TAKS Objective 1 Benchmark.  This is an optional daily grade; if it helps your average, I will include it.  If it hurts your average, I will drop it.  To submit your answers, you must enroll this Moodle Course:  RRHS->Science->RRHS Science Department.  I will give you the enrollment key in class.
  

Motion Lab #1, due at beginning of next class.  
Continue working on Moodle assignments.

Tuesday, 8/25/2009 (A-day), Wednesday 8/26/2009 (B-day)
Welcome to PreAP Physics!  Today's goals:

• Safety Contract and Emergency Medical Information Form
• Bookmark Mr. Freeman's TeacherWeb page.
• Student Information Survey in Moodle activities:
  • Student Information Survey
  • Problem Solving Strategy Notes (Daily Grade)
  • Unit Conversions - Daily Grade
  • Units in Everyday Life - Daily Grade
  • Measurement Units Q and A forum - Participation Grade
  • Significant Figures Notes (Daily Grade)

Please take a "Round Rock High School Safety Contract and Emergency Medical
Information Form" and start filling it out.  Return the form to Mr. Freeman
for a participation point.

You will need to bring a composition book to class next time.  Mr.
Freeman will show you an example of a composition book.  You can purchase
composition books for less than $1 at nearby grocery stores or pharmacies.   
The composition book will stay in my classroom until the end of the
year.

Materials you will need for this class every day:

• Composition book (leave in classroom).
• Notebook paper.
• pen or pencil.
• Scientific calculator. (you can check one out from the book room and keep it all year)
• Curiosity about the world.

Grading:  Grades are weighted.  Tests = 100 points, labs 20 to 50 points, daily grades and homework assignments 1 to 40 points.

Homework:  Daily grades for all Physics classes will be available through
online sites specific for this class (requires a login).  Deadlines for
assignments are posted on my TeacherWeb (this site).  Work done for
homework/class assignments will be kept in your notebook.  If you do not
have a computer or access to the internet, there is a computer lab in the
library, and the library is open longer than regular school hours.  Also,
you may come to my room during tutorial hours to work on Physics homework.
Power outages and internet down time the night before an assignment is due
will NOT extend your deadline.  If you are absent from class, you are still
accountable for online assignments.

Come see me first if you know you will be late turning in an assignment!
--Mr. Freeman

Physics Course Outline

First 6 Weeks:
Welcome to Physics, Safety, Measurement, Linear Motion, Vectors, Projectile
Motion

Second 6 Weeks:
Forces & Newton's Laws, Momentum

Third 6 Weeks:
Work, Energy, Power, Simple Machines, Circular Motion, Torque, Angular
Momentum

Forth 6 Weeks:
Vibrations, Waves, & Sound, Light, Refraction, Diffraction, Interference,
Quantum Physics

Fifth 6 Weeks:
Thermodynamics, Gravity, Electricity, Electric Circuits

Sixth 6 Weeks:
Magnetism, Nuclear Physics