Day 97

ESSENTIAL QUESTION: Momentum - Is It Conserved?

Goals: SWBAT...

1. To consider how impulse and momentum are related to collision injury reduction

2. To design/build/test a crash barrier which reduces the impact force during a collision

3. To explain, with theory and math, how to prove their crash barrier was successful/unsuccessful

Warm-Up 97 (5min):

If you have time to do the warm up today, great. Do it. If not, you can do it for homework. 

Reflection on yesterday: 

1. How did your crash barrier work yesterday? Rank its success from 1(unsuccessful) to 10(perfect)

2. What modifications did you make?

3. Why did you make those modifications?

4. Were your modifications successful?

 a tackle

CLASSWORK

097A: Momentum Exam

097B: Crash Barrier Lab - Data and Analysis

You likely won't have much time, if any, to work on this during class today, but here's the info. We will discuss the write-up in depth tomorrow. 

In your lab write-up, complete the following categories. Use the lab instructions and data sheet (links below) for guidelines.  

Lab Instructions: https://drive.google.com/file/d/0B-AiPYEb3nFVbmtCQy0zQnBlZVU/view?usp=sharing

Data Sheet: https://drive.google.com/file/d/0B-AiPYEb3nFVVWgwMW1rNHRiU3M/view?usp=sharing

Names

Title

Purpose

Procedure (you need to write this yourself)

Design & Pre-Test Analysis 

    - include a photo of your design drawing

Data/Post-Test Measurements & Analysis

Conclusion & Reflection

VIDEO: How-to do the write up: http://www.youtube.com/watch?v=wKw9oOze9Ds

VIDEO: Anaylzing Accelerometer Data http://www.youtube.com/watch?v=vWKJ1PTkDE4

Your test data is uploaded here: 

https://drive.google.com/drive/folders/1roa0wS4Z_xslcQ12NnGzjF5yeRXsuv12?usp=sharing

Learning at Home (HW)

Review the lab instructions above in 97B

complete the warm up