Universal Gravitation

Today we used some fake data to derive the Law of Universal Gravitation. Here is the activity: Universal Gravitation Pseudo-Lab.

Here is what ended up on the board:

And there weren't many good problems in the textbook, so I wrote some and put them on a little strip of paper: Universal Gravitation Homework.

Lab: Finding g With Centripetal Force

Here's what we did today:

Here is a link to the lab: Finding g With Centripetal Force

Your only homework is to finish your lab, although we won't have time to check it until Friday.

Your unit test is next Monday/Tuesday.

Banked Curve Problems + Practice

Today we talked about  banked curves:

Notes: Banked Curves

Later we worked on Chapter 7 (p. 228) #18, 20, 32, 52 which became homework if not finished in class.

Centrifugal Force

Today we talked about centrifugal force, which isn't a real force but rather a result of a rotating reference frame. This topic won't be tested, but it's pretty fun to think about and demonstrate.

Any leftover time was spent working on tonight's homework: Chapter 7 (p. 228) #26 & 30

Centripetal Force and Acceleration

Today we introduced centripetal acceleration and centripetal force. We'll be doing a lot more with these next week.

Notes: Centripetal Acceleration and Force

Homework is Chapter 7 (p. 228) #17 & 22

Below is the work for an example problem in the notes.

Rotational Kinematics Practice

I want to make sure you all are solid with using angular variables and rotational kinematics problems before we move forward, so today we simply practiced some tougher story problems. Whatever you didn't finish in class is homework:

p.227 #8, 9, 11, 69

Rotational Motion Introduction

Today we began our rotational motion unit with an introduction of angular quantities and how they relate to linear quantities.

Notes: Rotational Motion

Homework: Chapter 7 (p.227) #1, 2, 5, 10, 14 and Rotational Motion TIPERs #1 (email miss.volkening@gmail.com if you need a copy).