Unravelling Tissue

DoNow: On the surface of the Earth, we use PE = mgh. Would this be an appropriate equation to describe the potential energy for a rocket or object in space relative to the surface of the Earth? Explain. (notes)

AIM: I can describe how something that repeats a motion pattern is related to circular motion.

Activities:
- Submit Ch13 & 14 Preview Notes &  Around it Goes HW
- Tableshare More Spun HW
- Intro to Harmonic Motion (notes)
- Toilet Paper Rolling Challenge Activity (notes)
- Get In Harmony HW

Homework:
Get In Harmony HW, More Spun HW, Toilet Paper Challenge

Textbook Review: Ch 13 & 14

Coming Up:
Oscillations
Toilet Paper Rolling Challenge, Due: Block 04-05 Mar15
Semester Photo Project, Photo 4 & 5, Due: 09Mar15
Wave-like Motion TEST, Soon...

The BIG Torque TEST

DoNow: How is rotational motion different from linear motion?

AIM: I will show that I know rotational forces, momentum and Universal Gravitation

Activities:
- Tableshare & ??? Around it Goes HW & More Spun HW

- Test Taking Formation

Top Performers and Class Averages

Period	Class Average	Top Performer
1st	54.1%	April, Eric, Tommy
3rd	56.8%	Angela
4th	54.2%	Allen
6th	42.6%	Grace

*perfect score*

- Toilet Paper Rolling Challenge Activity
- Chapter Preview Notes: Ch 13 & 14: Oscillations & Waves

Homework:
Review Toilet Paper Challenge, Ch13 & 14 Preview Notes, More Spun HW, Around it Goes HW

Textbook Review: Ch 13 & 14

Coming Up:
Simple? Harmonic Motion
Semester Photo Project, Photo 4 & 5 Due: 09Mar15
Torque & Period TEST, Block Day, 25-26Feb15

Rotation Review

DoNow: What equations are not on the AP Physics 1 sheet that will be similar to the one used in the Free-Response portion of the test on Wed., May 6, 2015?

AIM: I can identify personal questions about rotational motion that need to be answered and find answers to clarify misunderstanding.

Activities:
- Submit That Could Atwood HW
- Color Review Flying Pig Investigation Final CER
- Tableshare Review & Around it Goes HW

- Non-Massive vs. Massive Pulley WB

- More Spun HW

Textbook Review: Ch 13

Homework:
More Spun HW, Around it Goes HW

Coming Up:
The BIG Rotational Force TEST
Semester Photo Project, Photo 4 & 5 Due: Mon., 09Mar15
Torque & Period TEST, Block Day, 25-26Feb15

Too Mas Tough

DoNow: Submit and Review things that are due.

AIM: I can describe similarities and differences between ideal systems and systems that have rotational inertia and torque.

Activities:
- Submit Orb-out of Control HW
- Submit Photo 2 & 3
- Color Review Flying Pig Investigation CER
- Tableshare Review & That Could Atwood HW

- 2002 AP Physics Q2 A2

- TP Drop Experience Intro
- Around it Goes HW

Textbook Review: Ch 12

Homework:
Around it Goes HW, That Could Atwood HW, Flying Pig Investigation Final CER

Coming Up:
Rotation Review
Flying Pig Investigation Final CER Due: Tue., 24Feb15
Semester Photo Project, Photo 4 & 5 Due: Mon., 09Mar15
Torque & Period TEST, Block Day, 25-26Feb15

When Pigs Fly

DoNow: The radius of the Earth is 6371 km. Calculate the mass of the Earth. (notes)

AIM: I can describe the motion of a conical pendulum using Newton's Laws and circular motion relationships are determined by the tension of the string in the pendulum.

Activities:
- Submit Remember that Timeperiod HW
- Color Review Rotating Mass Investigation Final Version CER
- Tableshare Review & Orb-out of Control HW

- Flying Pig Investigation CER

- That Could Atwood HW

Textbook Review: Ch 12.3

Homework:
That Could Atwood HW, Flying Pig Investigation CER, Orb-out of Control HW

Coming Up:
Gong Hey Fat Choy
Flying Pig Investigation CER Due: Mon., 23Feb15
Semester Photo Project, Photo 2 & 3 Due: 23Feb15
Torque & Period TEST, Block Day, 25-26Feb15

Head Spinning

DoNow: What are the equations used for Universal Gravitation? (notes)

AIM: I can describe how to solve problems involving rotation forces.

Activities:
- Submit All Twisted Up HW
- Tableshare Review & Remember that Timeperiod HW
- Taking Turns Whiteboard
- Orb-out of Control HW

Textbook Review: Ch 12.3

Homework:
Orb-out of Control HW, Remember that Timeperiod HW, Rotating Mass Investigation CER

Coming Up:
More Spinning
Rotating Mass Investigation Final Version CER Due: Wed., 18Feb15
Semester Photo Project, Photo 2 & 3 Due: 23Feb15
Torque & Period TEST, after Lunar New Year.

Repeating Time Period

DoNow: Three 10040 kg point masses are separated by a distance of 0.082 m and form an equilateral triangle. Determine the magnitude and direction of the attractive force at each mass and the acceleration any mass would experience at the center of the arrangement. Explain. (notes)

AIM: I can describe the variables and relationships in Newton's Law of Universal Gravitation and how the attractive force is related to acceleration and centripetal acceleration.

Activities:
- Submit 'bout That Moment HW
- Tableshare Review All Twisted Up HW & Rotating Mass Investigation Final Version CER
- 1992 AP Physics Q1 & A1
- Remember that Timeperiod HW

Textbook Review: Ch 12.1-.2

Homework:
Remember that Timeperiod HW, All Twisted Up HW, Rotating Mass Investigation CER

Coming Up:
My Head Spins
Rotating Mass Investigation Final Version CER Due: Wed., 18Feb15
Semester Photo Project, Photo 2 & 3 Due: 23Feb15
Torque & Period TEST, after Lunar New Year.

Universal Gravitation

DoNow: A student rests on a rotatable stool. The stool-student system has a moment of inertia of 4.625 kg m^2. A 1.5 kg ball moving at 2.6 m/s is caught by the resting student at a distance 0.5 m away from the axis of rotation and tangent to the moment arm of the student.
(a) What happens to the student in the stool? Explain in terms of motion and momentum.
(b) Determine the initial angular momentum of the student-stool and ball.
(c) Determine the moment of inertia for the student-stool-ball.
(d) Determine the angular speed of the student-stool-ball system after the catch.
(e) Determine the torque on the student-stool if the collision lasted 2 ms.
(notes)

AIM: I can describe the angular momentum of rotation systems and the conservation of momentum in rotation systems using concepts of moment of inertia, angular velocity, torque and angular acceleration.

Activities:
- Submit 'bout That Radius HW
- Tableshare Review 'bout That Moment HW
- Color Review Rotating Mass Investigation Draft CER
- Submit Balance Design Sketch Deliverable
- Balance Presentations & Feedback
- Universal Gravitation (notes)
- Universal Gravitation New Moon Whiteboard
- All Twisted Up HW

Textbook Review: Ch 12.1-.2

Homework:
All Twisted Up HW, 'bout That Moment HW, Rotating Mass Investigation CER

Coming Up:
Period of Repetition
Rotating Mass Investigation Final Version CER Due: Wed., 18Feb15
Semester Photo Project, Photo 2 & 3 Due: 23Feb15
Torque & Period TEST, after Lunar New Year.

Repeating Momentum

DoNow: What are the equations used to define and predict angular momentum. Identify the variable and units of the variables. What do you predict the Law of Conservation of Angular Momentum to be?

AIM: I can describe the effect of changes in inertia on the change in momentum, angular velocity and linear velocity of system of objects.

Activities:
- Submit All About That Mass HW
- Tableshare & Review 'bout That Radius HW
- Rotating Mass Investigation
- Rankings
- 'bout That Moment HW

Textbook Review: Ch 11.6-.7

Homework:
'bout That Moment HW, Rotating Mass Investigation Draft CER, 'bout That Radius HW, Balance Design Experience

Coming Up:
Angular Energy
Rotating Mass Investigation Draft CER Due: Friday, 13Feb15
Balance Design Experience & BONUS, Due: Friday, 13Feb15
Semester Photo Project, Photo 2 & 3 Due: 23Feb15
Torque TEST, after Lunar New Year.

Rapidly Spinning

DoNow: A 1.0 m rod is resting horizontally with a pivot axis on one end. Gravity causes the rod to pivot. Determine the angular acceleration and then the linear acceleration at the end of the rod. (notes)

AIM: I can describe how ladder problems and see-saw problems are similar and different. I can identify the equation for angular momentum and conservation of angular momentum.

Activities:
- Submit Time to Torque HW
- Tableshare & Review All About That Mass HW
- Cause a Problem WB
- Balance Design Consultations
- Ranking
- Angular Momentum Definitions (notes)
- 'bout That Radius HW

Textbook Review: Ch 11.6-.7

Homework:
'bout That Radius HW, All About That Mass HW, Balance Design Experience

Coming Up:
Angular Momentum
Balance Design Experience & BONUS, Due: Friday, 13Feb15
Semester Photo Project, Photo 2 & 3 Due: 23Feb15
Torque TEST, Dun-dun-DUUUN!

The Ladder

DoNow: Extend your arm and place an object on your hand. Relax your muscles to let your arm rotate naturally. If the object stays on your hand, what does this say about the object's linear acceleration and gravity? Does the object stay on your hand? Does the object stay if it is resting in the arm bend? Why?

AIM: I can describe how to solve rotational problems involving moment of inertia, torque and acceleration.

Activities:
- Submit Semester Photo Project, Photo 1

- Submit Comes Around HW

- Tableshare & Review Time to Torque HW
- Gallery Walk & Sort Semester Photo Project
- Ladder Problem WB
- All About That Mass HW

Textbook Review: Ch 11.4-.5

Homework:
All About That Mass HW, Time to Torque HW, Balance Design Experience

Coming Up:
Angular Momentum
Balance Design Experience & BONUS, Due: Friday, 13Feb15
Semester Photo Project, Photo 2 & 3 Due: 23Feb15
Torque TEST, Dun-dun-DUUUN!

Complicated Torque

DoNow: Two kids are using a 10.0 m long see-saw with a mass of 120 kg. One has a mass of 40.0 kg, while the other has a mass of 50.0 kg.
(a)  Calculate the Moment of Inertia of the system.
(b)  Determine the angular acceleration of the system.
(c)  How long does it take for the beam to rotate 0.17 radian
(d)  In this position, what is the angle between the moment arm and the force of gravity?
(notes)

AIM: I can describe how to determine torque, net torque and relationships to forces at a distance when angular acceleration is zero or the system is static.

Activities:

- Submit What Goes Around HW
- Tableshare & Review Comes Around HW
- Review Balance Design Experience & BONUS

- Well Balanced Meal WB
- Ranking
- Time to Torque HW

Textbook Review: Ch 11.4-.5

Homework:
Time to Torque HW, Balance Design Experience, Comes Around HW

Coming Up:
More Torque
Semester Photo Project, Photo 1 Due: 09Feb15
Balance Design Experience & BONUS, Due: Friday, 13Feb15
Torque TEST, Dun-dun-DUUUN!

Rotational Force or Torque

DoNow: Two kids are using a 10.0 m long see-saw to learn some physics. One has a mass of 40.0 kg, while the other has a mass of 50.0 kg. What happens? Can the less massive kid ever come down? Can see-saw ever become balanced? (notes)

AIM: I can describe the effect of a force or multiple forces on the rotation of an object.

Activities:
- Submit Torque… Whaaat? HW
- Tableshare & Color Review The Big Lift CER

- Tableshare & Review What Goes Around HW
- Torque Whiteboard Problem
- Balance Design Experience
- Comes Around HW

Textbook Review: Ch 11.1-.3

Homework:
Balance Design Experience, Comes Around HW, What Goes Around HW

Coming Up:
More Torque
Torque TEST, Dun-dun-DUUUN!
Semester Photo Project, Photo 1 Due: 09Feb15

Intro to Torque

DoNow: What makes good balance?

AIM: I can define torque and the direction of force that maximize the rotation around a pivot. I can describe analogs of twisting force and linear motion.

Activities:
- Submit Preview Notes Ch 11-12

- Tableshare & Color Review The BIG Race CER
- Tableshare & Review Torque… Whaaat? HW
- The Big Lift CER
- Torque Equation (notes)
- The Physics Balance Infomercial
- What Goes Around HW

Textbook Review: Ch 11.1-.3

Homework:
What Goes Around HW, Torque… Whaaat? HW

Coming Up:
Rotational Force or Torque
Torque TEST, Dun-dun-DUUUN!
Semester Photo Project, Photo 1 Due: 09Feb15

Rotation Kinematics & Energy TEST

DoNow: Why didn't mass matter in the BIG Rotation Race? Would radius matter?

AIM: I will show that I know rotational motion and inertia.

Activities:
- Tableshare & Submit Come Back Here HW, 3rd & 6th period Balancing Act CER

- Test Taking Formation

Top Performers and Class Averages

Period	Class Average	Top Performer
1st	54.8%	April
3rd	54.1%	Kevin
4th	54.7%	Chunjin
6th	38.9%	Grace

*perfect score*

- Torque… whaaaat? HW
- Chapter Preview Notes: Ch 11 & 12: Torque, Momentum & Orbits

Homework:
Chapter Preview Notes: Ch 11 & 12, Torque… whaaaat? HW

Coming Up:
Rotational Force or Torque
Semester Photo Project, Photo 1 Due: 09Feb15
Torque TEST, Dun-dun-DUUUN!