Thursday, January 9, 2014

Build A Compound Machine


In this project, we made a compound machine out of our past simple machines that we made. The goal was to get the highest AMA as possible when lifting a box of nails. We used three out of the four simple machines to build it. we did it to see who could come up with the best machine that could get the highest actual mechanical advantage.


Our machine worked well. In my group, our compound machine was the best in the class. when we measured, there was little force used to lift the box of nails. I found it hard to use the pulley to get a good mechanical advantage from that because it was hard to have it move when it was attached to the other machines. to fix this we made the moving wheel of the pulley attached to the string which lifted the lever. our methods were successful. we could have made a third wheel on the pulley to make it even more affective.


I learned that to get the highest mechanical advantage, we had to use all of the machines to get the mechanical advantage from them. the most difficult concept to grasp was how to connect them in order to perform one task of lifting the nails using barely any force. Nothing really surprised me during this project. I could use this knowledge in future projects when I need to make two different things perform a similar task.