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Good Afternoon !

Good Afternoon !. Have out your homework, journal, Science Book, and pen/pencil! Analysis #1-Act. 85 Crash Testing Dummy Drawing completed. Analysis #1: The crash test dummy that is most often used in frontal crash tests is the Hybrid III dummy….

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Good Afternoon !

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  1. Good Afternoon ! • Have out your homework, journal, Science Book, and pen/pencil! • Analysis #1-Act. 85 • Crash Testing Dummy Drawing completed

  2. Analysis #1:The crash test dummy that is most often used in frontal crash tests is the Hybrid III dummy…. The advantages are: high quality, reliable source,averageperson,safety uses The disadvantages are: expensive,last for a few years, only based on average person, not sure if parts are environmental friendly

  3. Objective • Students will be able to determine the relationship between the center of mass and stability of vehicles.

  4. Activity 86:Investigating Center of Mass • Date: 3/21/12 • Challenge Question: • Getting Started: What is the center of mass?

  5. Center of Mass: The center of gravity, the point at the center of an object’s distribution of mass.

  6. Pre-lab • 1. Stability • Center of Mass • Rollover

  7. Introduction pg. E-58 • Write your definitions for your pre-lab in your own words.

  8. Build Background • Stability The center of the mass falls within the area of an object’s base of support, an object will not topple(fall). In a car the base support is the area immediately under the four tires. If a car takes a turn or swerves in such a way that the center of the mass is outside the rectangular base inscribed by the tires, it will roll over.

  9. Materials/Procedure pg. E-59 • Copy data table into your notebook • Read steps #3-7 • Turn to pg. E-60 read steps #8-11 • Getter: get materials • Spokesperson: write down data • Procedure Captain: read the steps in the procedure to your group • Facilitator/Getter : Test out the activity, follow the procedure

  10. Activity 86 • Follow the steps in the procedure • Copy your results in your data table • Put all materials away when finished

  11. Homework • Analysis Questions #1-3 pg. E-60 • Recycled Car Project • Study Guide • Test tomorrow!

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