Introductory-

 

1. With a pulley, we had a ball drop into a cup that pulled a wood block up (which resulted in a ball falling down a tube.) We had A LOT of inclined planes. We had one at the end that had a dart attached to a toy car, that rolled down and impaled “Deadpool”. With a lever, we had a block fall off an inclined plane, and hit the end of a piece of wood. When the end of it was struck, the other end would swing the opposite direction, and hit a marble.

2. With Potential Energy, we had a car sitting at the beginning, not moving, waiting to be pushed to start the machine. After that, Kinetic Energy comes in. The car goes down an incline, hitting a makeshift boat (the “Titanic”), which makes the boat slide down an incline, and hit the block that sets off the lever. With Speed, at the very end of the machine, we had another toy car that, when hit, would slide down an incline till it hit “Deadpool”. As the car went further, it also went faster.

3. PE=mgh (mass*gravity*height)

          M=7.0g     1kg__= 0.007kg    (divide 7.0 by 1000 and cancel out grams)

                         1000 g        

 

          G=9.81 m/s^2      (the gravity is good exactly where it is)

 

          H= 50cm      1m___= 0.5m    (divide 50 by 100 and cancel out centimeters)

                            100cm

 

          PE= (0.007kg)(9.81m/s^2)(0.5m) → final answer: 0.0343j of Potential Energy before it reaches the system.

 

       4)   KE=½ mv^2  (m=mass,v=velocity)

             0.007kg

             V=45cm     1m____=0.45m/s^2     (divide 45 by 100 and cancel out cm)

                   S^2     100cm

 

             KE=(½)(0.007kg)(0.45m/s^2)^2

                          =0.0070875j as the ball is moving.

 

       5) In our Rube, we had a lot of steps. At the beginning, we had a toy car roll down an incline, and hit a cardboard boat that rolled down and hit a block. The block would fall and hit the end of a piece of wood. When hit, the other end would go the opposite direction, and hit a marble. That marble hit even more marbles, which sent them down another ramp. Then, they went down a tube. When they hit the bottom, they triggered a lever, which hit another marbel. That marble then rolled, and fell into a pulley system. The pulley system contained a cup, and a wood platform. The marble rolled into the cup, which triggered the system to lift the platform, and release a golf ball. The golf ball rolled down a tube, and at the end, turned on a sign that lit up. After hitting the switch, it fell into the next step. It landed onto another piece of wood, and rolled into a hole. When it fell, it triggered a horizontal pulley system. Like a track. The track would move, and when it reached the end, it hit another marble. That marble would go down a tube, and hit a car, with a dart attached to it. The car would roll down an incline, and at the finish, it would impale “Deadpool”, and in the process, apply a bandaid.

    Our theme was “A History Of Film”. Each step was an iconic film from each decade, starting with “A Trip To The Moon”(1906), and ending with “Deadpool”(2016). Our task was to apply a bandaid, so we thought it would be good satire, to apply it, whilst being impaled at the same time.

 

6)     I think I had good collaboration, communication, critical-thinking, and creativity. Finn and I were the main leaders, so we were in charge of the whole thing. I did a good job collaborating with my team, but I definitely hit a lot of rough patches due to lack of productivity with my team. My communication was good, if I had a problem, I spoke up. A group of us girls (plus Finn), all communicated very well. We got the Rube put together. My critical-thinking was tied in with my creativity. I was a main designer, and having critical-thinking and creativity, helped align and create the steps, but also create the satire. They also helped with the base. Our Rube was 8 ft tall, so we had to build brackets, and we never put the two boards together until we got into the commons.

 

7)     I DEFINITELY grew in critical-thinking. Engineering is something I had no clue I would be good at. Our practice Rube was a great example. It was all common sense. (*a video of that is below). Using critical-thinking with that rube, helped me with the big one. It helped open my mind to the physics behind the machine, and helped me to design it.