# HP Cycle 3

## 9/22 - 9/27

W 9/22

Th 9/23

F 9/24

M 9/27

### π’β 6: W 9/22, π΅β 8: W 9/22 - creating motion graphs

βQUIZ on graphical analysis of motion TODAY.

After the quiz, we'll first watch a demonstration of the creation of a motion diagram. Then, discover three different methods for getting an instantaneous velocity vs. time graph from your position vs. time data/graphs. We'll be working with your homework Practice - Getting graphs from TTT data to "transform" your graphs.

Homework: For the two different trials, finish graphing position vs. time and velocity vs. time on Practice - Getting graphs from TTT data. Set up your β©οΈ Pivot Interactives account by looking at the post in βοΈ Google Classroom.

### π© 6: F 9/24, π¦ 8: Th 9/23 - linearization

Today, we'll work on our graphing lab skills. In order to find a mathematical relationship between two variables, it is common to graph the data. If the relationship between the two variables is linear, you can write a mathematical relationship by finding the slope and writing a slope-intercept equation. However, if the relationship is not linear, finding an equation that relates the two equations is a little more difficult. While one way to get an equation is with a computerized curve fit, today we will learn how to do it by hand with "linearization." We'll first read through determining relationships from graphs to review what different curves look like and then figure out how to linearize the graph.

Then, we'll continuing to work with Practice - Getting graphs from TTT data and try to linearized the position vs. time graph. What do you think the slope of the linearized graph represents?

If there's time at the end of the period, we will start the next activity - Inclined Plane Lab in β©οΈ Pivot Interactives.

Homework: Finish linearizing the position vs. time graph from Practice - Getting graphs from TTT data. Find an equation of the best fit line for every straight line in your packet (to be collected next class). Also, make sure to set up your β©οΈ Pivot Interactives account by looking at the post in βοΈ Google Classroom. We will need to access this account next class.

### π 6: M 9/27, π 8: F 9/24 - inclined plane lab (part 1)

LAB SAFETY: The edges of the tracks hang off the tables and are sharp so students are reminded to be aware of where they are walking when doing the experiment.

Today, we'll be starting a lab in β©οΈ Pivot Interactives where we investigate the cart rolling down a ramp in "Inclined Plane Lab." There are three main purposes of this lab:

• To be able to describe the motion of an object down an inclined plane using the kinematic vocabulary that we've learned this unit.

• To find the relationship between the angle of the incline and the resulting motion (if there is one).

• To learn to linearize graphs in order to find the non-linear relationship between two variables.

We will spend two full class periods working collaboratively on this lab. Each person will be responsible for one trial, and then we will aggregate the data from all of the trials together in one Google Sheets spreadsheet.

Homework: Make sure you've completed all sections of the β©οΈ Pivot Interactives lab through "Collect Your Data & Make a Graph."