AP Physics: OLY Bridge Building Contest Scoring Sheet Name _________________ Thurs/Fri, May 30/31, 2013 P2-P5 in OLY HS Room 704. Period __________ If your bridge is not in by 1:30 pm to Room 704 on Wednesday, 5/29/13, your score will be 0/30. Once you meet the entry requirements, you are cleared for loading. Be sure your bridge has your name, period & mass on it. Testing is alphabetical! This year the max mass of your bridge is only 25 grams (basswood). We will test them until they fail (crash to the ground). The last load held for 10 seconds is considered the final load. Do not add more mass if the bridge is moving. Your teacher will give you the ok if it is going critical. Any bridge that makes it beyond 10kg load should be saved (reglued) on the back shelf for further analysis all. Have your photo taken with your bridge before loading begins & before you put on the safety glasses. After you are done testing, put all weights back on the floor & clear your bridge pieces from the area. Your partner will keep track of your KG held. Call these out as YOU add masses to your bucket. The bucket & holder is 1.5 kg. Attach your bridge sketch & label where it broke using a red marker. (Not attached subtract 3 points from your grade). The Final Load for my bridge was _________________ grams (nearest g) The Mass of my bridge was _________________ grams (nearest .1g) My efficiency was FL/Mass of Bridge= _____________ (whole number) Efficiency Less than 100 Less than 200 Less than 300 Less than 400 Less than 500 500 or greater 1st Place in class 2nd Place overall 1st Place overall points of 30 18 19.5 22.5 25.5 28.5 30 32 34 36 letter grade DD C B A A+ A+ A+ A+ My final place of the _____ entries was a _____________. Thank you for really trying hard to produce the best bridge given all the constraints of the 2013 International Bridge Building Contest rules from IIT. Great job! I enjoyed teaching each one of you this year, and I hope this final contest let you show your own creativity, model building skills and the application of physics to a genuine problems. Mr. O'Leary