Log of Meetings

Date	People Present	Work
4/17/14	Alex, Taylor, Evangeline	Alex researched the dimensions of the catapult for the maximum range. Taylor researched the energy that is present in the launching of the balloon. She took notes. Evangeline researched the force that acts upon the catapult and how Newton’s three laws are present during the launch. Taylor discovered the modifications of energy that needs to change in order to increase the range.
5/12/14	Alex, Taylor, Evangeline	Taylor and Alex drew the diagram showing the forces acting on the catapult. Me and Taylor also searched information for the projectile motion portion.
5/13/14	Taylor	Taylor finished researching the information about projectile motion and added to the post. She also drew a diagram showing projectile motion for the catapult.
5/14/14	Evangeline	Evangeline posted the picture of the force diagram onto the blog.
5/14/14	Alex, Taylor, Evangeline	All three of us met up at Alex’s house and began building the catapult. Evangeline helped cut the wood, and Taylor nailed the wood together. Alex also nailed the wood together and helped hold the wood together while we built it. Alex also helped measure out the wood to build the base.
5/17/14	Alex, Taylor, Evangeline	All three of us met up at Alex’s house to finish and test our catapult. Alex pulled the trigger each trial and measured how many feet the balloon landed. Evangeline helped Alex attach the weights to the catapult. Taylor brought the lacrosse stick over and helped attach it to the arm. All three of us took videos of the trials and explained what changes were made for each launch. Alex and Evangeline filled up water balloons.