# AT Cycle 11

## 11/6 - 11/13

M 11/6

T 11/7

W 11/8

M 11/13

### 🔴 2: T 11/7a, 🟡 4: M 11/6, 🔵7: M 11/6 - ✏️ massive pulley problems (1)

Today, we'll learn how to solve "massive pulley problems".  We'll do these problems from Chapter 10:

Support: 49, 50
Required:  51, 53, 54, 55, 56, 69, 71, 98
Enrichment:  57, 87

We'll continue working on these problems next hour after the quiz.

Homework:  These massive pulley problems are due Wednesday, November 8th at 10pm to ✏️ Google Classroom.   Quiz on moment of inertia Tuesday, November 7th.  Lab quiz on Massive Pulley Lab ALSO on Tuesday, November 7th.

### 🟥❗ 2: T 11/7b, 🟨❗ 4: T 11/7, 🟦❗ 7: T 11/7a - massive pulley problems (2)

Quiz on moment of inertia TODAY.  Lab quiz on Massive Pulley Lab ALSO TODAY.

After the lab quiz, we'll continue working through the "massive pulley problems" that we started last time.  We'll do these problems from Chapter 10:

Support: 49, 50
Required:  51, 53, 54, 55, 56, 69, 71, 98
Enrichment:  57, 87

Homework:  Finish any textbook problems you have not yet completed.  These massive pulley problems are due Wednesday, November 8th at 10pm to ✏️ Google Classroom.

### ❤️ 2: W 11/8, 💛 4: M 11/13a, 💙7: T 11/7b - ✏️ moment of inertia lab (1)

Today, you'll focus on collaboratively carrying out an investigation to experimentally find the moment of inertia of the PVC-T.  You may have to perform your experiment several times to engineer the best possible set-up to get good data.  Your goal is to get a great graph or two.  Screen shot your graphs and paste them into your Google Slides presentation (on Google Classroom) so that we can work with the graphs next time.

You may not take data unless the following are approved by me:

Remember, you may not ignore the torque of friction in this lab.

Lab SafetyIf the PVC-T is spinning, it could hurt if it hits you.  Please make to be aware when you are walking around the room that you do not walk into a spinning piece of equipment.  Make sure to follow all other directions about equipment.

Homework:  Also in your Google Slides presentation in ✏️ Google Classroom, make sure you have diagrams of set-ups (can be a photograph), free body diagrams, and prediction(s) for the graphs.  Also, you should find an algebraic expression for your moment of inertia based on your free-body diagrams.  Make sure you know how you will extract the necessary information from your graph.  Consider your assumptions and sources of error before you try to analyze your data.  If you got graphs, make sure they are in the Slides presentation! Moment of Inertia Lab Quiz - Tuesday, November 21st.

### 📕 2: M 11/13, 📒 4: M 11/13b, 📘7: W 11/8 - ✏️ moment of inertia lab (2)

Continue with the data collection for your lab.  See last post.

Homework:  Also in your Google Slides presentation in ✏️ Google Classroom, make sure you have diagrams of set-ups (can be a photograph), free body diagrams, and prediction(s) for the graphs.  Also, you should find an algebraic expression for your moment of inertia based on your free-body diagrams.  Make sure you know how you will extract the necessary information from your graph.  Consider your assumptions and sources of error before you try to analyze your data.  If you got graphs, make sure they are in the Slides presentation!  Moment of Inertia Lab Quiz - Tuesday, November 21st.

Homework:  Watch the first 18 minutes of this video about "Rolling Without Slipping", please do so.  This video is very important for the next lesson.