Physics
My mini trebuchet was designed after Aztec's 1511 trebuchet, we showed this through the sun god drawn on the bottom. My greatest strength during this project was cooperation because I was sometimes lost and my group helped me and I helped them.
Rube Goldberg
My Rube Goldberg machine was very basic, we had a Pulley, a Inclined Plane and a Wheel and Axle. The main instrument in our rube was the many inclined planes, they were used to get a marble rolling through our rube. The pulley in our rube was key to adding the band-aid, the rope was strained and after a ball would roll, relieving the strain, the band-aid would fall on a broken egg, the wheel was a marble that would fall down the many inclined planes. The rube I made also included a wheel in the many different marbles rolling throughout the rube.
My Rube Goldberg machine contained potential energy, kinetic energy, and momentum. The potential energy of my rube goldberg project was displayed in the many dominoes it contained, they all had to potential to fall. The kinetic energy was showed when the many marbles of my rube would roll down the inclined planes. The momentum of the marble going through the pipe was enough to knock the other marble into its course.
If a 7.0 gram steel ball was dropped 50 centimeters into a tiny bucket attached to a pulley, what would be the potential energy. To find this out I had to figure out how to get potential energy, the equation for potential energy is mass multiplied by gravity multiplied by height.
The mass of the steel ball was 7.0 grams, and when converted to kilograms was 0.007 kilograms. Gravity on earth is 9.81 meters per second squared. When converting the 50 centimeters into meters it came out as 0.5 meters. When all three numbers are multiplied together it equals 0.0343 joules of potential energy.
When the steel ball lands in the tiny bucket it has a velocity of 45 centimeters per second, using this information I could figure out the kinetic energy of the steel ball. I used the equation 0.5 multiplied by the mass multiplied by the velocity squared. After doing this i found that the kinetic energy would be 0.00070875 joules.
The original design of my rube looks very different to what we drew up, we had to adjust our design process to fit the changing circumstances. Because of these changing circumstances our group was a mess and someone had to take initiative, that person was me, I believe that I got the group back on track fo a bit so we could make a plan, and we did. A skill that, during the rube project, grew a great deal was my ability to collaborate with my group members.
