Th 9/24
F 9/25
T 9/29
W 9/30
Today, we'll continue our work describing the cheetah's motion.
Presentation: Ostrich & Cheetah Presentation
Handout: Ostrich & Cheetah WS
Homework: Convince yourself of the chart I drew on the "board" today with velocity, acceleration, and speed.
Today, we'll finish whatever we have not yet done with the Cheetah.
Then, in our lab groups, we'll continue the Graphic Analysis of Motion WS (velocity vs. time on page 2). ANSWER KEY. We'll review features of position vs. time graphs and velocity vs. time graphs, and you may ask questions if you don't understand. I will go over special aspects, especially about J-K-L and also H-I-J. We'll talk about some advanced concepts like how to find instantaneous velocity and acceleration when the graph is curved. We'll generate a list of phrases we can use to describe the motion given a graph.
In preparation for our next lab, we'll review Sig Figs in Measurement Worksheet.
Presentation: Ostrich & Cheetah Presentation
Handout: Ostrich & Cheetah WS, Sig Figs in Measurement Worksheet
Homework: Make a chart for yourself about the difference between analyzing displacement vs. time graphs and velocity vs. time graphs. In this chart, you should include answers to questions like: What does a 0 slope mean? What does it mean to cross the time axis? What does it mean if you have a positive slope? This will serve as a study guide for you for the upcoming check-in assessment. Upload a picture of your chart to βοΈGoogle Classroom. Also in Google Classroom, please make sure to sign up for a β©οΈ Pivot Interactives account. We'll be using this tool for lab next class.
Prepare a list of questions (if any) that you have about the topic: graphical analysis of motion. Finally, review the chart we made on the board - the one with velocity, acceleration, and speed - and convince yourself that this is true.
Today, we'll be starting a lab in β©οΈ Pivot Interactives where we investigate a "Dry Ice Puck on a Ramp." 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.
Please look in βοΈ Google Classroom for digital materials. We will spend two 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." More details can be found in the βοΈπ Google Classroom L02 lab assignment.