# Fall 16 Mechanics Week 1

We will introduce ourselves and the learning model for this class. We will then introduce the general concepts of the class.
The Codes:
Green is the color or your Goal: What should you know by the end of this day?
Video Links are in Blue, but turn to purple after you see them.
Red is important

Thursday, first hour
Know how the class is run differently from traditional classes and the resources students have available.
Visit my office sometime this week and say “HI” and consider how nice the 6th floor of Baker Science is to gather in groups. Please make note of when my office hours are (located on class main page as soon as I have collected a Doodle Poll), but you can come by to say hi any time – I just might be busy or not there if it’s not an office hour.

Before Thursday’s Class:
1. If you haven’t done it yet, please first fill out the survey ….coming soon.
2. Please get connected with PlayPosit by watching the videos below. When you hit the link, the video will ask you for your Email and a password and have you enroll in the website for the Fall 2016 class. It’s free. You need to do this to get credit for homework. Please record your password somewhere when you do this. It is not easy to get a new one if you forget your password.
2. Watch the video about the different way we will learn physics: How we are learning physics
3. Read the syllabus (link on main website), then watch the video explaining the syllabus.

The above is just for the first hour… you also have to prepare for the second hour (below)

During first hour:
We will introduce ourselves
We will spend a short time discussing the videos. How is this learning format going to work for you?

After first hour:
Organize learning resources and prepare for class tomorrow, see below

Thursday, second hour
Units: distance (meters), speed (meters/second), or speed is the time derivative of distance: v=dx/dt, Force (Newtons)
Before Thursday’s Class:
1. I posted problem set #1 on the main class website. Please take a look at it, especially problem #4, as we’ll do it today.
2. View “Four Concepts” video, 4 kinds of physics questions
3. View Position and Velocity
4. Watch Veritassium video, Say the Wrong Thing Read more about confusion if you like at NPR: Confusion is How it Feels to Learn
5. Read the following in the textbook: We are presently putting the textbook into final form, and will have the document here before the first day of class.

During class:

We look at a collision on an (almost) frictionless surface. Momentum and energy are conserved in a closed system. However, can momentum or energy change forms?

After Class:
Consider the cart collision Tuesday in class:
1) Is momentum conserved? How do you know?… Or don’t you know?
2) Is energy conserved? How do you know?… Or don’t you know?
3) Are there forces and accelerations? Please describe directions and sizes!
4) What about motion? Can you make a speed vs time graph for each cart? Can you make a position vs time graph for each cart?