EGG DROP REPORT

EGG DROP REPORT
  

• This report consists of answering a series of thought questions.
• Answer each question with 3-4 sentences. Include details and examples. Demonstrate your ability to think deeply.
• Each question is worth 5 points.

DUE: Tuesday, December 18th.

 

Thought Questions:
 

1. Describe your thought process as you developed an initial idea for your egg-catcher.

My thought process was to find out the best way to absorb the energy that was running through the egg and soak it all up as well as I could with all the materials I had. We also needed to improve the whole that the egg was being dropped into. We took these ideas and put it into one structure. We cut holes near the bottom of the cup and strung straws through them. Then on top on the straw we put a piece and a half of paper that was shredded up and fluffed it up on top of the straws. Then with our four popsicle sticks we taped them o the bottom of the cup so it could be more stable. With the half piece of paper left we warped it around the top on the cup so that we could aim the egg in easier.

2. Describe what changes you made to your design as the competition went along. Tell why you made those changes. Include a detailed and labeled sketch of your best design.

Some changes we made to our structure where that when we started out we didn't have the cone on top and the straws near the bottom, and one big thing was that on the bottom of our cup where we put the popsicle sticks we stacked them on top of each other making it unstable because each stick is on a different level instead of being flat on the bottom. Things we changed were on the bottom we had rubber bands stretching for side to side on the cup. We decided to put straws in for the rubber bands because the rubber band would make the egg bounce back up in like the straws did. When aiming came in, we did not have the best aim, we figured out that we didn't need as much fluffed up paper so we only used a sheet and a half of paper and the rest we put on top to improve our aiming.

3. Give a second-by-second descriptive account of your most successful trial.

Our most successful trail was when we had the string lined up right on target on the cup and Scott's hand was not shaking at all but still. I was at the bottom, where the cup was waiting for the egg to be catch. I just got done fluffing up the shredded paper and walked away slowly not breaking Scott's focus. We both looked at each other, i started the countdown 3, 2, 1, he dropped the egg right into the middle of the cup. It was so silent not a crack could be herd.

4. Describe the difficulties you had with this project. (e.g. Did you give your best effort?  Did you have trouble with design?  With equipment?  With construction? With execution?)

During this project Scott and I gave our very best effort from day one to the last day. We focused on what would be the best way for the egg to land perfect in the cup, with out cracking. Our biggest trouble with this project had to be getting the straws through the cup perfectly. We had the use a lot of different cups so we could get it perfect. Every time the straws would make bigger and bigger holes leading to the bottom of the cup. Making the straws no good. After a long time discussing how to fix this problem we came to an agreement by putting a piece of tape under the straw so it could not move down when the egg is caught.

5. Tell what you could have done to improve your egg drop project performance?

Scott and I could have improved our aiming techniques a lot better. Our aiming wasn't too bad but after looking back we could have made it a lot better. In fact after the day that we finished Scott made this outstanding way to improve our aiming. He brought aiming to a whole new level with this device. With it we could have maybe set the record for highest egg dropped

6. Describe the motion of your egg mathematically* and by creating at least one graph. [*Note: include average speed, acceleration, momentum, and force of impact calculations. Show three steps.]

When the egg is being dropped it goes through three different steps. Acceleration, momentum and force of impact. When the egg is dropped it moves through different steps. 1. Starts to accelerate to different speeds. 2. The movement of speed increases the momentum until it reaches it final speed. 3. Once the egg is dropped the is a force of impact that hits the the egg catcher and the egg hopefully lives to see another day. Everything will be different from different heights  The egg moves through these stepped every time it is dropped.

Calculations

Speed= 3.5m/0.67sec            5.22m/s

Accel.= 8m/s/0.67sec           11.94m/s/s                                                

Momentum= 0.0654*5.22     0.34kg*m/s

Force= 0.0654*11.94             0.781N  

7. Discuss how momentum played a major role in this project.

Momentum played a role in this project because each time you move up, the momentum gets increased by a certain amount of time. Each drop you have to make up for the speed by improving you egg catcher by a littler so it won't get smashed at and you have to make a whole new egg catcher.

8. Describe the forces acting upon your egg from the time it was in your hand to the time its drop was complete.

When the egg was being held in Scott's hand the egg was getting pulled down by force. Then once he let go of the egg the force came in and took it down at a rapid time all the way to the surface. As we moved up each meter and a half the force began to become stronger when it was dropped. It had more time to pull it down with greater force. Then when the egg is hopefully caught the force is stopped because the egg can't go down any farther.
9. Make TWO connections between the egg drop project and concepts from Chapter 2 of the science textbook.  Be creative and think with depth.
Friction
When the egg is dropped into the catcher it starts to gain more and more speed. After falling, it finally reaches the egg catcher. With all of my modifications to the cup, there is enough friction so that when the egg enters the cup that it will slow the egg down and catch the egg safely.
Weight
Each egg has a good amount of weight. When the egg is dropped from a certain amount of meters the eggs weight then shifts and starts to head toward the cup at a rapid past. The egg shifts is weight in mid air because the yoke get's pulled down, when inside of the eggs shell.