UNIT 2 ENERGY. Driving Question: How are the physics principles of energy transfer used in the safety of roller coasters?

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Mark Randall
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1 UNIT 2 ENERGY 2A: MECHANICAL/KINETIC AND POTENTIAL ENERGY Driving Question: How are the physics principles of energy transfer used in the safety of roller coasters?

2 Create a page in your notebook titled: Unit 2 Project 2: Roller Coaster. On this page (and following pages) you will complete the tasks asked of you in this project OVERVIEW OF PROJECT SECTION A B C D E F G PART Goals and Pretest Competition Article: Effects on Body PE/KE Simulation PE/KE Coaster Blueprints Video Experience: Fahrenheit DIY Coaster Challenge Assessment (paragraph and quiz)

3 PART A. Lay the Foundation GOALS of project write in your notebook 1. Identify Kinetic Energy and Potential Energy and apply them in physical laws 2. Understand the Law of Conservation of Energy 3. Design and construct a roller coaster track and test it using the given criteria and constraints.

4 Part A (continued) Lay the foundation! How about a little friendly competition? 1. Go to socrative.com-->room Name TITANSCIENCE and then type in a team name. 2. When the teacher says, select your team s assigned color 3. Race to get the correct answers to beat other teams to the finish line!

Part B: Information Investigation! Read the article Effects of a roller coaster on the human body http://www.themeparktourist.

5 Part B: Information Investigation! Read the article Effects of a roller coaster on the human body Write down in your notebook 3 facts that you learned from the article

6 Part C: Simulation! Play the simulation Energy transfer at a skate park (you will need to click the play button on the image) Write down in your notebook 3 facts/observations about potential and kinetic energy

7 Part D: Energy Blueprints *DRAW IN YOUR NOTEBOOK THESE BASIC DRAWINGS THAT WILL EXPLAIN THE ENERGY TRANSFORMATION DURING A ROLLER COASTER RIDE. *FOR EACH TRACK, COMPLETE THE CHART GIVEN. (DOWNHILL IS DONE FOR YOU). *THEN CHECK THE ANSWER KEY IN THE ROOM. Downhill A B Downhill then uphill A B C D E Through a loop C F E D G A. Potential = Max Kinetic = 0 B. Potential = 1/2 Kinetic = 1/2 C. Potential = 0 Kinetic = Max When going downhill (A-C) the energy transforms from potential at the top to kinetic at the bottom. C C. D. E. When going uphill (C-E): C. D. E. F. G.

8 Part E: The Fahrenheit You are now going to watch a video that will allow you to experience the Fahrenheit ride from Hershey Park in Pennsylvania. This ride has the largest angle of descent. That means that when you go over the first hill, you go down an angle that is over 90 degrees straight down. It s angle is 97 degrees (see the diagram on the right). WATCH THE VIDEO here or Google Fahrenheit Hershey Park and find a POV video to watch. 97 degrees When you are done watching click to the next slide. Where would you rate it? Draw a chart and use the guide on the next slide to rate this ride!

9 Part E: The Fahrenheit (Continued) Thrill Factor: Scary Little Scary Love it Kiddie Ride Safety Factor: Dead Major Injury Minor Injury Okay! Puke Factor: Puke my Guts! Almost Exploded Queasy Feeling Fine

10 Part F: DIY Coaster Your group is now ready for your Challenge: To design a roller coaster track and test it using the given criteria and constraints. Step 1: Read the criteria and constraints Step 2: Each team member will brainstorm (in your notebook), then share ideas and decide on final prototype Step 3: Build and try to meet the Challenge.

11 Part F: DIY Coaster (Continued) Problem: Design and build a roller coaster that will meet the criteria and constraints in a thrilling, but safe manner. Criteria and Constraints: Can only use given materials (cannot cut track) Must have hill, curve, and a loop Must be built on given surface or floor Ride must last between 2-3 seconds ONLY Marble must stay on track from start to finish Materials: 3 Pipe Insulation foam pieces Tape Scissors Marble for testing Materials for support Timer Popsicle stick for Marble release system

12 Part F: DIY Coaster ADVANCE CHALLENGE! Add a Jump to the roller coaster! The Marble must safely land in the cup without knocking the cup over and must cover a span of 5 cm.

13 Part G: Assessment!! In your notebook, write a summary paragraph that includes: a description of the roller coaster challenge (what to do, some materials used) the problems you faced/overcame to build the coaster tell whether or not you met the goal (and how, if appropriate) describe what you could have tried to improve the coaster/ made building it easier name where the kinetic and potential energies where the highest and lowest (include a rough sketch of design with labels)

14 Unit 2 Energy Project 2 Scoring Goals listed: / 3 3 article facts: / 3 3 PE/KE facts from sim: / 3 3 Sample blueprints: / 9 Chart rating Fahrenheit: / 3 Brainstorm: / 3 Prototype hill / 3 loop / 3 curve / 3 passengers survive / 3 thrilling (2-3 s) / 3 Paragraph summary: / 9 TOTAL SCORE / 48 COMMENTS

Paper Roller Coasters Engineering Journal. Name: Group: Period: Due date:

Paper Roller Coasters Engineering Journal Name: Group: Period: Due date: Problem: You are a roller coaster manufacturer competing for a bid to build a roller coaster for an amusement park. Your task is